VPN Beginner's Guide: The 10 Most Common Questions Answered

This guide isn't laid out as a feature list — it follows a sequence: account and devices first, then data and speed, then subscription links, routes, troubleshooting, client differences, payment, and account setup. Start by remembering four numbers; you'll use them every time you make a decision later.

How many devices can be signed in on one account at the same time?

There's no limit. One account can be signed in on clients for all five platforms — Windows, Android, iOS, macOS, and Linux — at the same time. You don't need a second account for one more device, and you don't have to sign in and out as you switch between them.

What actually affects performance isn't the number of devices but the traffic they generate at the same time: if one is downloading a large file while another streams 4K video, both will feel slower because the outbound bandwidth is shared. The practical approach: install the client on the devices you use often, and sign in on the rest only when you need them.

If you just want to try it out first: install the client on your computer, import the subscription, confirm the sites you use most open normally, and then move on to your mobile devices.

How is plan data counted? What happens if I go over?

Monthly plans are billed by data, in three tiers: ¥9.9 / 60GB, ¥18 / 250GB, and ¥28 / 500GB. Data resets monthly on your activation date — the billing cycle starts the day you activate, not on the first of the calendar month.

To estimate how much you need, three questions are enough:

• How much online video do you watch each day? 4K uses far more data than 1080p, and the longer you watch, the bigger the gap.
• How many devices are online at once? The more devices, the harder background usage is to control.
• Do you download large files or sync cloud storage? Those tasks burn the most data.

If the answer to all three is “not much,” the smallest tier is enough; if any answer is “often,” move up to 250GB or 500GB.

Data packs work differently: ¥158 / 300GB, ¥358 / 1000GB, and ¥658 / 3000GB, and they never expire. If you're not online often and only use a lot during a trip or a single project, a data pack suits you better than paying monthly — you pay for what you use, and whatever is left is still there next month.

Do speeds get throttled? First, work out which layer you mean

The word “throttling” covers two different things.

One is plan rules: the three monthly tiers differ in data — 60GB, 250GB, and 500GB. When choosing a tier, the data allowance is all you need to work out.

The other is the physical reality of routes and cross-border gateways: at peak evening hours the whole gateway is congested, and any service will be slower than it is at 3 a.m. You can't avoid this layer — you can only ease it by switching route types.

How to tell which one it is:

1. Switch to a route in a different region and test again at the same moment.
2. If every route is slow, compare networks — switch to a mobile hotspot, for example. It's most likely your local broadband connection.
3. If only one route is slow, just switch away from it; there's no need to suspect your account is being singled out.

A note on protocols. Shadowsocks, VMess, Trojan, and VLESS run over TCP; Hysteria2 and TUIC run over UDP based on QUIC. The UDP-based ones handle jitter better on routes with high packet loss. The client matches the protocol automatically — you don't have to pick one yourself.

Does the client need to stay on? How to set up split tunneling

No. The client isn't a system service that has to run all the time — turn it on when you need it and off when you don't. Your account and subscription are unaffected either way.

What's worth a few minutes of setup is split tunneling, sometimes called rule mode. It sends only the traffic you specify through the proxy and lets everything else connect directly:

• Rule mode: decides automatically based on domain and IP rules. This is the everyday default.
• Global mode: all traffic goes through the proxy. Switch to it temporarily to check an app that isn't working under rule mode.
• Direct mode: everything goes over your local network. Use it to work out whether “slow” is really a route problem.

Put the domains for video, AI tools, and developer tools in the proxy rules, and leave things like local cloud drives and LAN printing on direct connections — pages will load faster and your device will use less battery.

On mobile, leaving the client on all the time drains the battery faster than usual; that's normal at the system level.

What is a subscription link, and why shouldn't you share it?

A subscription link is an address that carries a token. The client reads it to get the route list, protocols, and ports, and it syncs automatically whenever routes change — that's what makes it less work than adding servers one by one by hand.

But it's also an account credential: whoever has that link is using your data allowance. So there are three things not to do:

• Don't post it in group chats or forums, and don't share screenshots of it;
• Don't share the same link with a friend to “use together”;
• If the link has already leaked, open a ticket in the dashboard as soon as possible.

Also, adding servers manually and using a subscription are two different paths: manually added servers don't update on their own, so if the server IP changes you have to edit it yourself. If you're new, just use the subscription.

How to choose a route: IEPL dedicated, relay, and direct compared

KimiVPN currently covers 110+ countries and 150+ routes, and the list marks each route type. Here's how to think about the three types:

It helps to follow the same three steps: start with your use case, then pick a region, and finally choose among the three route types.

1. Use case: for lookups and email, direct or relay is enough; for video, long meetings, and large downloads, go with IEPL dedicated first.
2. Region: pick a server close to where the site or service you need is based. Japan and Singapore are nearby, the United States covers the most services, Hong Kong has a fast entry point, and Italy works well for European sites.
3. Trade-offs: run the default recommended route for a day, then switch to another during peak evening hours and compare. Use whichever is steadier — don't assume the route with the fanciest name is the best.

For more detailed, scenario-based rules, see the “How to choose a route” article; to browse every region directly, compare on the route list page.

Connected but pages won't open — what should you check, and in what order?

Don't rush to reinstall the client. Work through the order below and most problems will be pinned down before the third step.

1. Check the client status: does it actually say connected, and are there any reconnect notices?
2. Switch routes: try another one in the same region, or a different region, to see whether a single route is at fault.
3. Change networks: switch from Wi-Fi to a hotspot. If everything works immediately, the problem is your local broadband connection.
4. Switch to direct mode: if pages still won't open, the problem is your local network or the site itself, not the route.
5. Update the subscription: if routes changed in the dashboard, an old subscription won't update itself — refresh it manually and try again.

There's also the case where you're connected but certain sites won't open. That's usually not a route failure — the split-tunneling rules are sending that domain through a direct connection. Switch to global mode to check: if the site opens there, the rules need adjusting.

How do the clients for the five platforms differ?

The features are the same; the interface and authorization method differ. There are clients for Windows, Android, iOS, macOS, and Linux, and signing in gets you the subscription.

One account works across all five platforms — you don't pay separately for each system. Installers and instructions are listed by platform on the Guides page.

How do I pay, and what methods are supported?

Alipay, WeChat Pay, and USDT are supported — pick one at checkout. Your account activates immediately after payment, and refreshing the subscription in the client shows every route.

If you're not sure which tier to pick, run the smallest one for a month first, then move up or add a data pack if it isn't enough — there's no need to buy a long term up front.

Do I need an account? Can I skip the email address?

You need an account to hold your plan, data, and subscription link, but no email address is required to create one — a username and password are enough. For anyone who'd rather not hand their everyday email to a third-party service, that's one less thing to worry about.

Account actions all live in the user dashboard: checking remaining data, refreshing the subscription link, and opening a ticket. The dashboard link is on the homepage — sign in and follow the navigation.

What if it doesn't work for me — can I get a refund?

Yes. KimiVPN offers a 7-day no-questions-asked refund, counted from the order date. If you're not sure how the routes will perform on your network, use those 7 days to run through your usual scenarios: test once during the day and once at peak evening hours, and open your regular sites, AI tools, and video services. If it isn't right for you, start the refund.

Two more lessons beyond the ten questions

First: don't change too many variables at once. Switching route, protocol, mode, or device — change only one at a time so you know which one made the difference. Change them all together and you'll only know it “works now,” and you'll be stuck again next time.

Second: break “slow” down. Is it pages loading slowly, video stuttering, or low download speeds? The three have completely different causes — slow pages are usually DNS or split-tunneling rules, stuttering video is usually the route type, and slow downloads are usually gateway bandwidth and time of day. Describe the symptom clearly and both troubleshooting and support tickets go much faster.