Stack APK App - PDF Scanner + Document Organizer size is 67MB and the latest version is 1.6.366323214.release (Updated).
You can download the App from Google Play Store or from Area 120 by Google official website for free.
We never share any Mod, premium version of Stack.
Click on the Download APK button below.
You will be redirected to Download Page or Area 120 by Google website.
Save the com.area120.paperwor on your Android device.
Turn on "Unknown sources" from Phone Settings -> Privacy -> Unknown sources
Open the APK file on your mobile (Download folder).
It will prompt for Install Stack, click Install and you are done.