Math expression calculator with variables and functions support
About this app
Application that solves math expressions. Main features:
* Supports variables (e.g. you can do "a=5", then "a+1" and you get 6) * Built-in basic function (like logarithms and trigonometry) * Custom functions can be defined (e.g. "log(x,b)=log(x)/log(b)", then log(32,2) will print 5) * Variables and functions can be edited both from the prompt and dialogs * Can print parsing and evaluation steps. * (Android 6.0+ only) can evaluate expressions from text selection in any application (ACTION_PROCESS_TEXT intent). * Fully localizable - actually includes English and Italian, you can contribute yor translation with a pull request on GitHub.
Changelog:
* 1.2: updated build tools to fix crash on some Android versions. * 1.1: added localization support and Italian translation; added ACTION_PROCESS_TEXT intent filter. * 1.0: Initial version.
This application is based on this open source (MIT licensed) library.
Licensed under MIT.
What's New in v1.2
Imported from the F-Droid repository index.
Version history
Jan 17, 2017 · 1.4 MB · Android API 15–25 · code 3
Imported from the F-Droid repository index.
SHA-256 39d681ca959f7b8b4d2c14dddfc5818169a6974f83b8691effc967b4ca0d4ba9
Jan 14, 2017 · 1.4 MB · Android API 15–25 · code 2
Imported from the F-Droid repository index.
SHA-256 2b2d4bc5cd89c0245f0ed8c7201409323e922247c54d8a8e8ca475cafd1a7d41
Dec 21, 2016 · 1 MB · Android API 15–22 · code 1
Imported from the F-Droid repository index.
SHA-256 306c82bf5f18a90ce3c90750834e70961f278c033b69733a9e3ffc2fe203727c
Will it run on your device?
73%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
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 com.github.gianlucanitti.expreval 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, 1.1 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall ExprEval 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 ExprEval, and a listing is removed when the evidence for it stops holding up.
Get ExprEval
Every source we list for com.github.gianlucanitti.expreval 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
39d681ca959f7b8b4d2c14dddfc5818169a6974f83b8691effc967b4ca0d4ba9
Signing certificate
d0b3c41003f611165860efb25de426533841976ea4a6eaad717bc3243370a143
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.
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