This is my exercise application for Android development which is handy, pure, and full-free.
There is NOT any 'Permissions' required at all for this pure app to run. It is a demo of Android apps without 'Application Permissions'.
In addition, the handy app is so lightweight that the size of package installer is only 812 KB, i.e. 0.79 MB.
The app screenshots -
Amazon Cloud -
or
https://drive.google.com/open?id=1PFvY4BZFFumnTotrkXgZhg8pyrUyOusF
* 1 MB = 1024 KB , 812 KB = 0.79 MB .
* The package installer as well as screenshots for this smartphone application are full-free for your downloading and distributing. 😄
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Smart Unit Converter Free - another more comprehensive converter app available on Google Play.
It's a free, ad-free, almost no permissions required utility app. The pure app with only 71 kB( i.e. 0.07 MB ) download size works offline.
Link to the app on Google Play Store -