Top Calculator is designed with a small window shown on top of other apps. And, the window is resizable, movable and foldable. Better experience for calculation and cross reference on your phone/tablet (Android Jelly Bean 4. 3 [API 18] and above). Key features: Resizable: adjust the window size by holding the Resize button (at the bottom right).
The app is completely secure for downloading. Will Lin created Top Calculator that falls into the Tools category. Google Play shows that this application is rated 4.4 by its users.
The developer rolled out a new version of Top Calculator on Nov 14, 2019 and over 1K users downloaded and installed the app. Advertisements are a part of this application. You are able to get the setup package of Top Calculator 1.7.3 for free and read users' reviews on Droid Informer. The app works fine on Android 4.3 and higher.