Shak' App for Installers

Android

Click on the button to arrive on the PlayStore page and press "Download".
After downloading the app, you will be able to connect using your credentials.

iOS

Log in your installer account. Go to settings, and click "Redeem Apple Store Code".
You will receive an email with the code. In the App Store, in apps, click on "Redeem a Code" and enter your code.

If you uninstalled the application, you will find it in the App Store / Go in my profile in the top-right corner / Purchases / My Purchases.