Scientific calculator for Android 5+
About this app
Scientific calculator with complex numbers and 2D/3D graphing of user-defined functions.
- Trigonometric functions - Combinatorial functions - Complex numbers - Binary, octal, hexadecimal numbers - Animated 3D graphing - Graphing multiple 2D function on a single graph - Graphing of derivatives for 2D functions - Screenshots of the graphs
Licensed under Apache-2.0, by woheller69.
What's New in v1.58
Imported from the F-Droid repository index.
- Deprecation warning
Version history
Sep 29, 2025 · 2.2 MB · Android API 21–35 · code 158
Imported from the F-Droid repository index.
- Deprecation warning
SHA-256 9ec6dd21e8984c14f59f4c15205d224283b152637a81088da8458f9b9aad2bd5
Aug 1, 2025 · 2.2 MB · Android API 21–35 · code 157
Imported from the F-Droid repository index.
- Update for Android 15 (SDK35)
SHA-256 9b7569e7e0e8ed2629f039edf42ae8599960827fe671a2f2083a54b2042bd6d4
May 18, 2025 · 2.3 MB · Android API 21–34 · code 156
Imported from the F-Droid repository index.
- Translations
SHA-256 01b0845f372bbac1073efa3e2be416ad05cb27815fc1a7da4d91d74f211faa57
Will it run on your device?
78%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be org.woheller69.arity is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 1.57 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall ArityCalc first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of ArityCalc, and a listing is removed when the evidence for it stops holding up.
Get ArityCalc
Every source we list for org.woheller69.arity is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
9ec6dd21e8984c14f59f4c15205d224283b152637a81088da8458f9b9aad2bd5
Signing certificate
083b4d98c248d71d559416abcb2ce7b57dde5e866044419b6e79f53dcfabad68
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.