Trident for Android

Version 1.0.1 · 13.3 MB · Android 7.0 or newer

TI-style, Casio-style and HP/RPN calculators in one app, with graphing, notebooks and step-by-step explanations. Free, no account.

Download the APK Also on itch.io

How to install

Open this page on your Android phone and tap Download the APK.
Open the downloaded file. When Android asks, allow installs from your browser (or file manager) just this once.
Tap Install, then open Trident.

The app needs a reasonably current Android System WebView (Chrome 80 or newer), which phones with Google Play update automatically. On phones without Google Play, update WebView from your phone maker's app store.

Android may warn that the file can harm your device. That is the standard message for any app installed outside Google Play. The app is signed by South View Studios.

About Pro

Trident Pro is $2.99 a month, $9.99 a year or $24.99 once. On Android you buy it inside the app through a secure web checkout, then tap Open Trident and it unlocks on its own (your license key is also emailed). No Google Play account is involved. Sign-in sync and the teacher class tools are in the iPhone and iPad app for now.

Good to know

This is the first Android release. If something looks off, tell us through the support form.

To check your download, its SHA-256 is 5a609ee8b05d87ccb3bc1b8d1a4171dbe8a465591dba535ba18f0984fcb7e59f

The iPhone and iPad app is coming soon. You can also run it in any browser at trident/app.