Calculator is an open-source (BSD-3-Clause) Android app by ARITRA BELEL and SHOURYA S GHOSH. The APK we host is 17 MB, it needs Android 5.0 or newer, and it declares 1 permission.
The file on this page is Calculator 1.1.0, 17.31 MB, and it installs on Android 5.0 and newer.
We compared the signing certificate of this build with the certificate recorded the first time com.neumorphic.calculator entered the site, and published both the file's SHA-256 and the certificate's fingerprint above so you can check the download yourself. That comparison says the file was not repackaged by someone else; it is not a review of what the app does.
The manifest inside the APK declares 1 permission, none of which cover contacts, location, SMS, the camera or the microphone.
Its licence is BSD-3-Clause. We took this build from F-Droid, and the source for this exact version is linked below.
The most recent release upstream is from Jan 28, 2022, over 4 years ago. It still installs; it is simply not being updated.
We do not show a star rating or an install count for this page: we have no measured figure for either, and a number we cannot source is worth less than an empty field.
- Version
- 1.1.0
- Size
- 17.31 MB
- Requires Android
- API 21
- Package
- com.neumorphic.calculator
- Signature checked on
- Sep 22, 2026
- Where this file came from
- F-Droid
- Licence
- BSD-3-Clause
- Source code
- Source for this version
File SHA-256: 0ec687a490a1a8eac754d9409b23ab0735a1c5dced9cac0e6c0558f393747064
Signing certificate (SHA-256): 9d14ff740d45539f5dfc8c08f355dae46eb3c54c7d9b229a11ecd2b7db12fe04
We check that this file carries the same signing certificate as earlier releases of the same package. That shows the APK was not repackaged by someone else — it is not a security review of the app.
Declared permissions
- VIBRATE
Screenshots


