# 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.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://help.adalo.com/actions/app-authentication.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.