# How do I install the SILAB mobile app and log in?

The SILAB app is **free**, on **Android** ([Google Play Store](https://play.google.com/store/apps/details?id=com.lemoncorp.waterlook)) and **iPhone** ([App Store](https://apps.apple.com/app/silab/id6737241950)). Once installed, log in with **your email and password**, or by **scanning the authentication QR code** from your profile.

:::note[Prerequisite]
Your SILAB account must be **activated** before your first login. See [How do I activate my account?](https://docs.silab.cloud/en/portail-web/compte/activer-votre-compte/)
:::

1. **Download the app** from the Google Play Store or the App Store, then open it.

   ![SILAB app on the Play Store](../../../../../assets/articles/installer-et-se-connecter-lapplication-mobile/1.png)

2. **Log in** using one of two methods:

   - **Email and password**: enter your credentials;
    - **QR code**: scan the authentication QR code from your personal space.

:::tip[Stay logged in for a year]
Authentication stays valid for **1 year**: no need to log in again every time.
:::

## Find your authentication QR code

1. On the web portal, click the **SILAB logo** at the top right, then **Profile**.

   ![Opening the profile from the SILAB logo](../../../../../assets/articles/installer-et-se-connecter-lapplication-mobile/2.png)

2. Open the **Security** tab to display your QR code.

   ![Authentication QR code in the Security tab](../../../../../assets/articles/installer-et-se-connecter-lapplication-mobile/3.png)

3. In the app, tap **Scan** and centre the QR code. Try again if needed: once recognised, you land on one of your sites.