# First run

After installation the Cal App will ask for some rights, when run for the first time.

To run the Calibration App, tap the Calibration App icon.

![](https://2641614999-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0lFbL66Jd9kHaF8jF97P%2Fuploads%2FOJUJLXDGwTzShI2KgZrD%2F12.png?alt=media)

<figure><img src="https://2641614999-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0lFbL66Jd9kHaF8jF97P%2Fuploads%2FyVvWLsAB1Hgx2degsZD5%2Fimage.png?alt=media&#x26;token=bb88a92e-7896-46a8-8cd3-11e8ce52c1ea" alt="" width="214"><figcaption></figcaption></figure>

Tap "While using the app".

<figure><img src="https://2641614999-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F0lFbL66Jd9kHaF8jF97P%2Fuploads%2FzkpgdMTyxY5eGGh8nikz%2Fimage.png?alt=media&#x26;token=a33def75-3ac5-4316-89f3-af129a91f4e3" alt="" width="204"><figcaption></figcaption></figure>

Tap "Allow".

A [login](https://help.boomerang3.com/boomerang-3-calibration-app-manual/calibration-app/login "mention") form will open.