# Licenses

License keys for apps you install, such as S+M VoIP for EspoCRM: free trials, paid keys, renewals and moving to another address.

Apps you install on your own system, such as S+M VoIP for EspoCRM, need a **license key**. Each license belongs to
your company and works at one address: your CRM's, for example `crm.example.com`. Hosted services such as eSign don't
use license keys.

Everything about licenses is under **Products & licenses** in your S+M account.

## Start a free trial

:::steps
1. Under **Start a free trial**, choose the product and enter your CRM's address.
2. Choose **Start free trial**.
3. Copy the key: choose **Show key** next to the license, then **Copy**.
4. Paste it once on the app's **License** page in your CRM.
:::

A trial lasts 30 days and needs no card. There is one trial per company and per address. We also email the key to the
company's owners.

## Subscribe

Choose **Subscribe** next to the license and pick a plan. The license keeps its id, and the app picks up the paid key
by itself: there is nothing to paste again.

## Renewals

Keys renew by themselves while the trial or subscription runs: the app checks with S+M every day. You only paste a
key once per address.

If a key expires, the app keeps working for 14 more days, then stops until a new key arrives. Under
**Products & licenses** the license then reads **Expired on …, still working for a few days**.

## Move to another address

When your CRM moves to a new address, choose **Move to another address** next to the license, enter the new address
and choose **Move license**. Then paste the new key at the new address. The old address stops renewing. A license
can be moved up to twice a month; after that, contact us.

## Downloads

Owners, billing contacts and members of a company with a license see the app's versions under **Downloads**, each
with its release notes.

> [!WARNING]
> Keep the key private: anyone with it can use your license at that address.