> For the complete documentation index, see [llms.txt](https://wiki.zgcvpn.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.zgcvpn.com/en/faq/popular.md).

# Popular questions

## Basic questions

### What is the ZGC VPN?

Recently, we raised the topic of Chinese censorship. We told you about free and paid VPNs\*, but the article had to be removed. 

We tested all the paid VPNs we could find and concluded that only two of them work normally in China, at a price of around $100, which forces us to run to the free ones, which occasionally don't work in the evening and leak your data to interested parties. 

In the end, **in 2018 we created our own high-speed VPN** (after several failed tests) and it worked! 

Now our VPN is no slower than the one that costs $100/year!

\*VPN – a technology that will allow access to forbidden sites (in our case).

## ZGC VPN subscription

### Subscription is free?

No, the subscription is paid. 

However, we offer a two-day free trial period for all new customers.

### What do I get after payment?

You get full access to the servers (depending on the plan), installation assistance, and fast support in English and Russian.

### What payment methods are available?

At this moment we accept the following payment methods:

#### RUB

* [x] Card transfer
* [x] Pay with card (from website)
* [x] USDT

#### CNY 元

* [x] with QR - Wechat
* [x] with QR - Alipay

{% hint style="info" %}
If you did not find a convenient payment method in the list, please write to us so that we can discuss possible payment options.
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### How to cancel subscription?

No additional action is required on your part. 

The subscription is activated for a certain number of days and you will lose access when they expire.

## Other questions

### How many devices can I connect?

It depends on the tariff plan, for example, on the Basic tariff you can connect up to three personal devices.

[Click here to open more detailed information.](/en/rules/main.md)

If you need a plan for more devices/people, we recommend taking a look at the Premium+ and Ultra plans.

### What devices do you support?

We support and assist with connection on the following platforms:

Windows(v2rayN, Clash For windows), macOS (ClashX Pro, Shadowrocket), iOS (Shadowrocket, FoXray), Android (ZGC VPN, v2rayNG).

You can also install it yourself on Linux. **We do not provide assistance with installation on Linux.**

### Do you provide dynamic or static IP addresses?

It is not possible to answer this question precisely, as we regularly rotate IP addresses for more stable performance in China and beyond.

### Is it safe to use ZGC VPN?

Definitely yes!

* [x] We do not keep any logs or connection logs 
* [x] Regular IP address pool updates 
* [x] 256-bit encryption"

## I still have questions...

### Live chat and technical support

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[Contact support](/en/support/contact.md)
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