> For the complete documentation index, see [llms.txt](https://help.adalo.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.adalo.com/actions/app-authentication.md).

# App Authentication

To keep Adalo Apps secure, App Users are required to log in **every 20 days** when authentication tokens expire. This ensures that only authorized users can access their accounts over time.

#### **Why Do Tokens Expire?**

Regular logins help protect your account by:

* Reducing the risk of unauthorized access.
* Preventing long-term sessions from being hijacked.
* Keeping your security settings up to date.

#### **Other Reasons You May Be Logged Out**

In addition to token expiration, User Sessions may end if:

* Your Users **log in on another device** or browser, replacing an active session.
* Your Users **clear their browser cache and cookies**, which removes stored authentication data.

To continue using the platform, Users simply need to log in again when prompted.


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