You need a Promo-Code to download the App.

1st step- Activate Unknown Source

Before you can download the App and install it, you have to activate the installation of "Unknown Sources" on your Smartphone.
You will find this Option in the settings on your Android Smartphone. If using a Samsung Galaxy Smartphone you will find this setting in "Settings" ->"Security"->"Device Management". Here you will find "Unknown Sources" in the Menu (allow installation of Apps from other sources than Google Play Store). All you will have to do is check it (maybe there is a warning, which you can confirm with "OK" when using APPstinent).

2nd Step -Application Download

Visit this page with your Android- Smartphone and enter your Promo-Code. Click on "Download App Now". The download in process should be visible on your computer notifications.

3rd Step- Installation of the AKP-File

If download is completed you can click on the file (.apk) in your notification menu and start the installation of the APK- file. Now you will be asked again, if you want to install the application. Click on "install" in the area below.

If the installation is complete, confirm with "Done" or "Open".

Completed! You successfully installed APPstinent on your Smartphone and can open it from the Menu.