Complete Manual · 9 Chapters

VPNBu Complete User Manual

From service scope and plan selection through sign-up and ordering, to getting your subscription, five-platform client setup, connection verification and daily maintenance — read it in order and you can complete the whole flow on your own. If you just want the shortest path, start with Guides; if you need to look up principles, parameters and troubleshooting branches systematically, stay on this page.

Updated 2026-09-18 Covers Windows / macOS / iOS / Android / Linux 100+ countries / 240+ routes

Service scope and typical use cases

VPNBu is a subscription-based cross-border network acceleration service. It offers international routes across 100+ countries / 240+ routes, supports five platforms — Windows / macOS / iOS / Android / Linux — with no limit on simultaneous devices; sign-up needs no email address, just a username and password; and every paid plan comes with a 60-day no-questions-asked refund. These points are the premise for everything that follows, and every step below builds on them, so keep them in mind.

Many people start by searching for terms like "VPN" or "proxy tool". In practice the needs usually fall into three groups. The first is AI tools: chat assistants, writing and translation, image generation, code completion. These services care more about connection stability than raw bandwidth — a request that drops halfway has to be started over. The second is streaming: series, films and live sports, especially at 4K, which tests route bandwidth and how well the network is scheduled during peak evening hours. The third is cross-border work and research: overseas sites, developer docs, academic databases, remote collaboration tools — long sessions with occasional bursts of heavy traffic. This service organises its routes and clients around these three needs, and that is where the logic of picking a route comes from.

Three route types

Understanding how route types differ makes route selection and troubleshooting much easier later on. Direct routes connect straight into the local data centre — the shortest path, well suited to streaming and everyday browsing. Relay routes enter the target region through a relay node, balancing cost and stability, and fit most everyday scenarios. IEPL dedicated lines are end-to-end private channels that do not share capacity with other traffic, so they hold up better during peak evening hours — ideal for long-lived connections that need stability, such as video meetings, live streams and large file transfers. No type is absolutely better than another, only better suited: a direct route can be faster than a dedicated line late at night, while a dedicated line proves its worth exactly at peak times.

In terms of coverage, routes span 100+ countries and regions, with popular locations including Japan, the United States, Singapore, Hong Kong, Australia and the Netherlands. To see which cities each region has, which route type they use and which streaming services they support, check the full list on the Servers page. Routes are added and removed as operations change; the client syncs them automatically after reading your subscription, so there is no need to swap configurations by hand.

How this page and the Guides page divide the work

The Guides page is the shortest path: it keeps only the main line from sign-up to a working connection, each step short enough to follow by clicking. This page is the systematic manual: it spells out the reasoning behind each step, what the parameters mean, edge cases and troubleshooting branches — good for coming back to after your first run, and for jumping to a chapter when a specific problem appears. The two do not overlap: the Guides page gets you running, this page explains why, and covers the maintenance, renewal and advanced material the Guides page deliberately leaves out.

Privacy and security

Traffic is protected with quantum encryption at the transport layer, and account and plan details live only in this site's panel, with the subscription link tied to your account. On logging: this service does not record browsing content. The boundary of that promise deserves to be stated clearly — it means no record of which sites you visit or what you transfer; account-level essentials such as plan status and data usage are still retained, because billing and renewal cannot work otherwise. That part is unavoidable for any subscription service.

The one-line version: 100+ countries / 240+ routes, unlimited simultaneous devices, quantum encryption, 60-day no-questions-asked refund, sign-up without an email address. These five points are the site-wide standard, and any page should match them.

Choosing a plan: monthly plans and data packs

Payment comes in two forms: monthly subscriptions, and data packs that last until used up. Both work with the same subscription; the difference is how they are billed and how data resets. Before choosing, answer one question: is your usage steady month to month, or does it swing? Steady usage suits a monthly plan; uneven usage suits a data pack, or a combination of both.

Three monthly tiers

TierPriceMonthly dataBest for
Light¥9.9 / month60GBMostly text-based use: AI chat, web pages and documents, email
Standard¥18 / month250GBDaily video, but no need for long 4K sessions
High-volume¥28 / month500GB4K streaming, large downloads, several devices sharing one subscription

Monthly plan data resets every month on the day you signed up — the same date each month, not the 1st of the calendar month. Keep that in mind when estimating usage: if you sign up mid-month, your first cycle has fewer days than a full month, so do not read its burn rate as your long-term level. If you upgrade from a lower tier to a higher one mid-cycle, the amount already paid is prorated by remaining days and you just cover the difference — no need to buy a whole new plan, and the reset date does not change because of the upgrade.

Data packs

Data packsPriceValidity
300GB¥158Until used up — never expires
1000GB¥358Until used up — never expires
3000GB¥658Until used up — never expires

Data packs suit two kinds of people. First, those with uneven usage: a month of travel or binge-watching burns a lot, while other months barely use anything, so a fixed monthly allowance goes to waste. Second, those who do not want monthly resets to matter: buy once, use it whenever, with no end-of-month zeroing to worry about. Data packs and monthly plans are two separate billing lines, bought as needed — there is no either/or.

How to estimate your usage

You do not need precise numbers — three questions will place you in the right tier. First: do you mostly use text-based apps, or watch video often? Pure text use such as chat, documents, web pages and email consumes far less than video. Second: when you watch video, do you want 4K? The same content costs more at higher resolution, and the gap grows steeply. Third: besides yourself, do other devices share the same subscription? Simultaneous devices are unlimited, so a phone, tablet and computer often draw on the same allowance at once.

  • Mostly text, occasional video: start with the Light tier and upgrade if it is not enough.
  • Daily video at ordinary quality: Standard is easier — no need to watch your usage every day.
  • 4K or several people sharing: go straight to High-volume and avoid topping up mid-month.
  • No idea at all: try the lowest tier for a month. Upgrades are prorated by remaining days, so the cost of guessing wrong is low.

Payment and refunds

Payment supports Alipay / WeChat / USDT. Every monthly plan and data pack comes with a 60-day no-questions-asked refund — no reason required. That window is far longer than the usual seven or fourteen days, enough to run a full real-world trial: install the client, connect to a route, use the services you rely on most, and then decide whether to continue.

The full plan comparison table, data pack details and the "included with every plan" list are on the Plans page — worth reading in full before you decide.

Sign-up and ordering: an account flow with no email

Sign-up here skips a step that most services require: no email address, no waiting for a verification message. A username and password are enough, and you can log into the panel, order and grab your subscription right away — usually within a few minutes. Filling in one less field means a shorter path, but it also means account recovery cannot rely on email. Step 3 covers that in detail.

Five steps to sign up and place your first order

  1. Open the sign-up page

    Use any CTA on the page to reach the sign-up view in the user panel. The link carries a language parameter, so the panel interface matches the marketing pages instead of mixing languages.

  2. Choose a username and password

    The username is your account's unique identifier — pick a string unrelated to your personal details, not a name in pinyin or a common nickname. Make the password long, mixing upper and lower case, digits and symbols. Since there is no email for recovery, save both in a password manager the moment you are done.

  3. Log into the panel

    After signing up, log in with the same username and password. The panel shows account overview, plans, downloads, orders, tickets and settings; first login lands on the account overview.

  4. Pick a plan and place your order

    Choose your tier in the plans view, confirm the price and data allowance, submit the order, then pay with Alipay / WeChat / USDT. Order status is visible any time in the orders section; once payment succeeds the plan takes effect immediately, with no manual review.

  5. Record your account details

    Keep the username, password and activation date in one place. The activation date sets your monthly data reset day, which you will need later to work out how many days are left this month. It is also worth confirming that the plan name and data allowance shown in the orders section match the tier you picked.

What account recovery actually looks like

No email means the "forgot password" route does not exist. That is the price of email-free sign-up, and it is worth facing at sign-up time. There are only two practical options: save your credentials in a password manager when you register rather than relying on memory; and if you do lose access, contact support through a ticket, explain the situation, and let a human verify it. The ticket entry is in the panel's tickets section and does not require an email address.

So the bar for choosing a username and password is different from an ordinary site: do not reuse a password you have used elsewhere, and do not pick something guessable like a birthday just because it is easy to remember. A long, random password stored in a password manager is the real account insurance in this email-free flow.

Three things people overlook at checkout

  • You can change tiers later: buying a lower tier to try it out and upgrading afterwards is allowed — the difference is prorated by remaining days, so there is no "I picked wrong, now I have to buy again".
  • Data packs and monthly plans can coexist: they are separate billing lines, and while you hold both, the client still shows one subscription, with usage drawn down according to the rules.
  • Payment method is chosen when you submit the order: all three are supported, so pick whichever is easiest, and you can switch to another for renewals.

At this point the account, plan and payment are all done. One thing remains: take your subscription out of the panel and hand it to the client.

Getting your subscription: one link, five platforms in sync

The subscription is the core concept of this service. It is not an installer, and it is not a server list you fill in by hand — it is an address tied to your account. When the client reads that address, it pulls every route currently available and keeps them updated as routes come and go. Once that clicks, every client operation becomes simple: whatever the platform, you are doing the same thing — handing the subscription address to the client.

Where to find your subscription

After logging into the panel, the subscription entry is in the account overview or the downloads section. The panel offers one-click import you can copy directly, plus a subscription address for manual entry. Import methods differ between clients, so the panel shows a matching button for each client type — use one-click import where it is available and skip the manual copying.

The subscription address is tied to your account and changes with account status. Once a plan expires or the data runs out, the routes the subscription pulls stop working — that is not a broken client but an account state issue. Renew or top up a data pack in the panel and it comes back.

Rules for keeping your subscription link safe

The subscription address is effectively one of your account credentials: anyone who has it can use your plan's data. So three rules are worth adopting as habits.

  • Never post it publicly: forums, chat groups and video comment sections are all wrong places for a subscription address, even briefly.
  • Do not paste it into shared environments: if you paste it on a shared computer or in a cloud note, clean it up afterwards.
  • Reset immediately after a leak: the panel offers a subscription reset; the old address stops working at once and you just import the new one.

This service does not record browsing content, but the subscription address itself is an account-level credential, and keeping it safe is the user's side of the deal. Treating that link like a password is basic discipline for using the service.

One-click import vs. manual entry

One-click import works because the client registers a custom protocol: clicking the link in a browser wakes the client and fills in the subscription automatically. It is fast, but it depends on the system recognising the protocol correctly — if the browser says it cannot open the link, the target client is not installed, or it did not register the protocol on install. In that case, switch to manual entry.

Manual entry works much the same way in every client: open the client, find the "Subscription" or "Profiles" area, create a new subscription, paste the address from the panel, save, then trigger an update. When the update succeeds the route list appears on its own — no adding servers one by one. Below is a sample of what the fields look like when filling in manually; the address is an obvious placeholder, so do not copy it.

# Field layout for adding a subscription manually (address is a placeholder — use the real one from the panel)
Subscription name: VPNBu
Subscription URL: https://example.com/sub?token=YOUR_TOKEN
Auto-update: on (once every 24 hours recommended)

This site never provides a static subscription address or a direct installer link on any page — every subscription comes from the panel after you log in. If some page hands you a configuration file you can download directly, it is not an official entry point for this site.

When to update your subscription

The route list a subscription pulls changes as operations are adjusted, so it is best to enable the client's auto-update and keep it at once every 24 hours. Three situations are worth a manual update: right after renewing or topping up a data pack; after resetting the subscription address in the panel; and when one route will not connect while other routes in the same region work fine — update first, then judge.

Client setup on five platforms: step by step

This service supports five platforms — Windows / macOS / iOS / Android / Linux — with no limit on simultaneous devices, so a phone, tablet and computer on the same account can all stay connected. Import details differ slightly between platforms; each is covered below. Clients for every platform come from the downloads section in the panel; there is no public static download page.

Windows client

  1. Download and install

    Choose the Windows build in the panel's downloads section and run the installer once it finishes downloading. Installation is a standard wizard — the default options are fine. If the system asks about firewall access on first launch, allow network access, otherwise the client cannot connect.

  2. Import the subscription

    Open the client, go to the subscription or profile management area and create a new subscription. You can paste the address from the panel directly, or click one-click import in the panel and let the system wake the client and fill it in.

  3. Update and pick a route

    Save the subscription and trigger an update; the route list appears. Choose by latency, region or route type — direct or relay is fine for everyday browsing, while long-lived connections do better on IEPL dedicated lines.

  4. Turn on the system proxy

    Check in the client's settings that the system proxy is enabled. This matters especially on Windows: the client may show "connected", but if the system proxy is off, browser traffic never touches the accelerated route.

Two common snags on Windows: security software blocking the client's network permission, which shows up as "connected but no site loads" — add the client to the allowlist; and several network tools installed at once fighting over the system proxy setting — keep only one running.

How the five platforms differ

PlatformWhere to get itKey first-time actionMost common snag
WindowsPanel downloads sectionTurn on the system proxySecurity software blocking network access
macOSPanel downloads sectionApprove the network extensionNot authorising it, so traffic cannot be taken over
iOSApp StoreAllow adding the connection configurationMistaking the status bar icon for an active connection
AndroidPanel downloads sectionAllow the connection request, lift battery restrictionsKilled in the background by the system
LinuxPanel downloads sectionStart as a service and check the logsNo prompt when it fails

If you hit a platform-specific error during import, the Help Centre has troubleshooting entries grouped by symptom; and to understand route types and regional coverage first, the full list is on the Servers page.

Connection and verification: confirming traffic really takes the accelerated route

A client showing "connected" does not mean traffic is actually going through the accelerated route. This is the trap beginners fall into most: the status in the interface is just a switch state, and the real test is whether your exit IP changed. This chapter gives a three-step check that works on all five platforms and takes under a minute.

The three-step check

  1. Check the exit IP

    Before connecting, visit a page that shows your current IP and note the address and its location. After connecting, refresh the same page — if the location has changed to the region of the route you chose, traffic really is going through the accelerated route. If it has not changed, the connection is not in effect; move on to the next step.

  2. Check DNS resolution

    If the exit IP changed but some sites still will not open, the usual cause is DNS resolution going through the local path and returning the wrong address. In the client, confirm the DNS options follow the proxy, or specify a public resolver manually, then try again.

  3. Verify per app

    Once the browser check passes, open the apps you actually use and try them. Some apps do not use the system proxy and need to be assigned individually. Per-app checks separate a route problem from an app configuration problem, so you do not troubleshoot in the wrong direction.

Four cases of "it says connected but nothing is going through"

  • System proxy not enabled: common on Windows and some Linux desktop environments — the client's internal state is fine, but the system layer never hands it the traffic.
  • Rule mode classifies the domain as direct: the rule set puts a domain in the direct group, so traffic naturally skips the accelerated route. Add the domain to the proxy group.
  • The app has its own network path: some apps carry their own acceleration or proxy settings that take priority over the system proxy.
  • Network extension not authorised: common on macOS and iOS — if the authorisation prompt was skipped or declined, the client opens but cannot take over traffic.

Basic rules for choosing a route

The same route can feel very different at different times of day — not mysticism, but the combined effect of route type and time-of-day load. Here is a simplified but reliable order: classify by purpose first, then fine-tune by time of day.

Use casePreferred route typeWhy
AI chat and writing toolsIEPL dedicated lineRequests run long, so a dropped connection costs a lot
4K streamingDirect or dedicatedBandwidth matters more; direct has lower latency, dedicated is steadier
Everyday web and documentsRelayGood enough at a reasonable cost — no need to occupy a dedicated line
Video meetings and live streamsIEPL dedicated lineSensitive to jitter, so the steadiness of a dedicated line matters more
Large file transfersDedicated or directLong-lived connections, so sustained bandwidth comes first

Peak evening hours are when routes carry the most load. If the experience clearly degrades then, switch to an IEPL dedicated line rather than reconnecting to the same route over and over. Conversely, if a direct route is smooth late at night, there is no reason to keep a dedicated line running just for extra stability.

For the full troubleshooting path when something is connected but not working, a blog post on checking your exit IP and DNS goes into more detail, including how to verify per app.

Daily maintenance and renewal: keeping the service usable long term

Once it is installed, connected and verified, what is left is the long haul: how much data you have used this month, when to renew, and what to watch for when changing devices. None of it needs daily attention, but knowing where to look and what to do keeps you calm when something comes up.

Data usage and resets

The panel's account overview shows data used and data remaining for the current cycle. Monthly plan data resets each month on your activation date — the day you originally ordered. If data is running short as the reset day approaches, you have three options: upgrade to a higher tier with the difference prorated by remaining days, buy a data pack to top up, or wait for the reset day. None of them conflict.

Data packs are a separate billing line: they last until used up, never expire, and do not take part in monthly resets. They are good as a backstop — when your monthly allowance runs low, a data pack covers the gap without an immediate upgrade. Conversely, if you find yourself relying on a data pack every month, your tier is too low and upgrading directly is better value.

Renewal and expiry

The panel shows a reminder before a monthly plan expires. Renewal happens in the plans section, and payment still supports Alipay / WeChat / USDT. After expiry the routes your subscription pulls stop working, which shows up in the client as an empty route list or nothing connecting — renew in the panel and it recovers. No reinstalling the client, no re-importing the subscription.

A common misconception is that you have to re-import the subscription after renewing. In fact the subscription address does not change: once you renew, one automatic client update brings back the working routes. If the client is still empty after renewing, trigger a subscription update manually.

Changing devices and managing several of them

Simultaneous devices are unlimited, so switching devices does not require signing out the old one first. On the new device it is just the platform steps from Chapter 5 again: install the client, import the subscription, pick a route, connect. The client on the old device can stay or be uninstalled; uninstalling does not affect your account or subscription.

What does need attention is keeping the subscription address safe. The more devices and the more copy-paste, the higher the chance of a leak. Recommended: use one-click import on new devices to avoid manual copying; and when you really must type it in, clear your clipboard history right afterwards.

When to reset your subscription

The panel offers a subscription reset, after which the old address stops working immediately. Three situations are worth resetting proactively: you suspect the address leaked, for instance because it was posted somewhere public; your data usage looks clearly wrong compared with what you actually did; or you need to cut off a device you no longer use for good. The only cost is re-importing on every device once.

The 60-day no-questions-asked refund runs from your first payment — a long window, but not unlimited. If you plan to use it, there is no need to uninstall the client or wipe your configuration first; the refund does not depend on usage.

Everyday account security habits

With an email-free account, security rests almost entirely on the password. Three habits are worth keeping: do not reuse the same password across sites; do not forget to log out of the panel on a shared computer; and check the panel periodically for unexpected orders. If anything looks off, contacting support through a ticket is faster than handling it yourself.

Advanced usage: rule mode, split routing and multi-device coordination

Once the basics work, you can go a step further and tune the client to your own habits. This chapter covers three things: how rule mode differs from global mode, how to configure split routing, and how several devices work together. None of it is complicated, but the difference in experience is noticeable.

Rule mode vs. global mode

Global mode sends all traffic through the accelerated route — blunt and simple, at the cost of routing local sites the long way round, which makes them slower, and of being unfriendly to apps that need the local network. Rule mode decides by rule set: domains matching a proxy rule take the accelerated route, everything else goes direct. Keep rule mode for everyday use, and switch to global mode temporarily only when troubleshooting or when an app refuses to use the accelerated route, as a comparison test.

The rule set updates along with your subscription — no manual maintenance. If a site that should use the accelerated route goes direct instead, update the subscription first; if it is still wrong after that, consider adding the domain to the proxy group by hand.

Three common split-routing setups

  • By domain: the most common. Put the sites you need accelerated in the proxy group and let everything else go direct. Fits the vast majority of everyday use.
  • By app: judged by process on desktop platforms and by app on mobile. Suits cases where an app ignores the system proxy.
  • By region: pin routes from a specific region to a specific purpose — streaming through one region, work through another. Suits heavy users with clear requirements.

Split routing does not have to be perfect from day one. A good approach: run the default rules for a week, note which situations disappoint you, then adjust those specifically. Configure everything at once and, when something breaks, it is hard to tell which rule caused it.

Working across several devices

Unlimited simultaneous devices means a phone, tablet and computer can all stay on the same subscription. Two practical benefits: no switching accounts between devices; and when you are out, phone and laptop can both stay connected instead of choosing one. The trade-off is that data comes from the same allowance, so watch usage when several devices stream video at once.

Another coordination scenario is a home network: if you want the whole household to use the accelerated route, that means configuring it at the router level, which involves device compatibility, performance overhead and split-routing trade-offs — not always worth it. A blog post comparing whole-home router setups in practice separates the cases where it works from those where it does not; worth a read before deciding.

Handing your subscription to more clients

The subscription address is a standard format that many clients can read. So if you already have a client you like, you do not have to switch to the one this site provides — paste the subscription address into the client you know and it will pull the same routes. One caveat: clients differ in how well they support rule mode and split routing, so when behaviour looks odd, test once with the official client to tell quickly whether the problem is the subscription or the client.

If the terminology itself is still unfamiliar — what subscription, node, route type, protocol and split routing each mean — a blog post, the beginner's glossary, ties them together in one article.

Troubleshooting: locating problems by symptom

Almost every problem falls into one of four symptoms: it will not connect; it connects but has no effect; it connects but speed is poor; the client itself misbehaves. Troubleshooting by symptom rather than by platform is more efficient, because the same symptom usually has the same cause across platforms. Each type is covered below with an order of checks.

Symptom one: it will not connect at all

First confirm account status: has the plan expired, has the data run out? In both cases every route stops working, which looks almost identical to a broken client. If the account is fine, work through the order below.

  1. Update the subscription

    The route list changes as operations are adjusted, so trigger a subscription update manually first, then try connecting again.

  2. Try another route

    Switch to another route in the same region. If the others work, the problem is that single route and there is no point troubleshooting your machine further.

  3. Check the local network

    Disconnect the accelerated connection and confirm the local network can reach the internet on its own. When the local network is down, no route will connect.

  4. Check permissions and authorisations

    Go back to the platform steps in Chapter 5 and confirm the key actions — system proxy, network extension authorisation, connection request — are all done.

Symptom two: it connects but has no effect

Jump straight to the three-step check in Chapter 6: exit IP first, then DNS, then per-app verification. Working through all three usually pinpoints the stage. The two most common causes are the system proxy not being enabled and rule mode classifying the target as direct.

Symptom three: it connects but speed disappoints

First rule out the wrong-route factor: try another route in the same region with a different route type and compare. Within a region, direct usually has lower latency and dedicated lines are steadier at peak times. If switching routes clearly helps, the problem was route choice — no need to fiddle with local settings.

If switching routes does not help, consider the following: whether other programs on the machine are eating bandwidth, such as cloud sync, system updates or download tools; whether the local network itself is congested, which you can test again at a different time; and the target service's own response speed — some sites are simply slow at certain hours, unrelated to the accelerated route. The test is simple: connect a second device to the same route at the same time. If both are slow, the problem is probably not your machine.

Symptom four: the client misbehaves

  • Crashes on open: first confirm the installer came from the panel's downloads section, then try reinstalling once. You can keep the old configuration files and simply re-import the subscription afterwards.
  • Empty route list: update the subscription first; if it is still empty, check whether account status is normal; if the account is fine, reset the subscription address once and import again.
  • System network breaks after connecting: disconnect first and confirm the network recovers. If it does, check the client's system proxy and DNS settings; if it does not, restart the network service or the device.
  • Subscription update fails: confirm the machine can reach the internet normally; if only the subscription update fails while browsing works, try again a little later — usually a temporary network hiccup.

When to contact support

If you have worked through the order above and it still is not solved, or the problem is account-level — an odd order, a refund, a subscription reset, account access — it is time to contact support. The ticket entry is in the panel's tickets section, and including these details speeds things up noticeably: platform and client, the exact symptom, the steps you have already tried, and when the problem started. Screenshots are not required, but the more specific the description, the better.

That is the end of the nine chapters. If you remember only one line: account in good standing, subscription updated, exit IP changed — when all three hold at once, the service is working normally.