# Subscriptions

> How to add your provider's subscription to FlowLock, what the subscription card shows, HWID, and subscriptions from limited links.

A subscription is the link your VPN provider gave you (usually `https://…` from their dashboard or bot). FlowLock
downloads the servers, routing rules, traffic and expiry date from it by itself.

## Add a subscription

- Copy the link and paste it into FlowLock: the add button in the subscriptions section, or “Add from clipboard” in
  the tray menu / menu bar.
- Or open a `flowlock://add/…` link, if your provider put an “Add to FlowLock” button on their page: the app asks for
  confirmation.
- Or open your provider's limited link `https://flowlock.cc/i/…`: the page opens FlowLock.

FlowLock understands subscriptions from Remnawave, Marzban, 3x-ui and compatible panels: base64 and link lists, Xray
JSON, sing-box JSON. Single servers (`vless://`, `hysteria2://`, `trojan://`, `ss://`, `vmess://`, WireGuard and
AmneziaWG `.conf`, OpenVPN `.ovpn`) can be added the same way: they go to “My servers”.

## What a subscription shows

- name, traffic and expiry, if the panel reports them (“unlimited”, “Expired”);
- the “Support” and “Subscription page” buttons, and the provider's announcement;
- for verified providers: their contacts, info block and renewal reminder.

Subscriptions refresh by themselves (the panel suggests how often) and are downloaded directly, outside the VPN: many
panels don't answer requests from VPN server addresses.

## HWID

Many panels limit the number of devices by HWID. FlowLock sends it in the `x-hwid`, `x-device-os`, `x-ver-os`,
`x-device-model` headers while “Send HWID” is on; for a single subscription the HWID can be set by hand. If the
provider requires the HWID always, FlowLock says so: “required by the provider”.

## Subscription from a limited link

A provider can give you a subscription link with a device limit. FlowLock adds such a subscription but doesn't show
its address: it can't be copied or sent to a friend. On your second device add the same link, and it will take
another place.

## Provider notifications

The provider of a verified subscription can send a notification (for example, about maintenance) or ask the app to
refresh the subscription. Import offers always wait for your “Add”, and settings changed by the provider are marked
“Set by the provider” with a “Restore mine” button. All of this is turned off with the “Tell the provider I'm
connected” setting.