If you are seeing a " Package File is Invalid" error when trying to download Anghami, you will need to clear your Google Play's data and cache. 

 

To do this:

1. Go your device's Settings menu.
2. Go to Applications (may also be labeled Application Manager).
3. Tab over to All Applications.
4. Open the Google Play Store app.
5. Tap on Clear Data and Clear Cache.
6. Relaunch Google Play and install or update Anghami