Emulator for TI-59 Calculator

Emulator for the TI-59, TI-58C Calculator and the unreleased TI-59C.

Pascal Obry · net.obry.ti5x

Not rated yet 100K+ downloads v10.3 10.3 MB Android 6.0+ PEGI 3 · Everyone

Download APK 10.3 MB All versions

Signature matches the Google Play version Details

Emulator for TI-59 Calculator screenshot 1

Emulator for TI-59 Calculator screenshot 2

Emulator for TI-59 Calculator screenshot 3

Emulator for TI-59 Calculator screenshot 4

Emulator for TI-59 Calculator screenshot 5

Emulator for TI-59 Calculator screenshot 6

At a glance

Latest version: v10.3 (210)
Updated: Sep 1, 2026 (1 month ago)
APK size: 10.3 MB
Requires: Android 6.0+ (API 23)
CPU support: Any (no native code)
Category: Productivity (app)
Listed since: Apr 22, 2021 (at least)
Permissions: 5 (2 sensitive)
Website: github.com/TurboGit/ti5x_android
Developer contact: [email protected]

About this APK

Emulator for TI-59 Calculator is an app by Pascal Obry in the Productivity category, listed since at least April 2021. It has no native code, so it runs on any Android processor.

Since version 9.5, the APK grew from 6.7 MB to 10.3 MB and the minimum Android version rose from 4.1 to 6.0. It asks for 5 permissions, 2 of them sensitive: read shared storage and modify shared storage. It asks for the same permissions as version 10.2.

What's new in v10.3

v10.3, 2026 June 13th: Add Op 54 extension (factorial) v10.2, 2026 February 7th: Make the printer state persistent Fix clearing the paper v10.1, 2026 January 30th: Fix layout on tablets v10.0, 2026 February 1st: Calc status in topbar (Angle/2nd/Inv) Large UI revamp. New print view (unlimited) v9.5, 2025 January 17th: Sort programs alphabetically. Allows for 1500 steps in bank 0. v9.4, 2024 September 1st: Add MIN/MAX extension on INV -

Description

From the listing uploaded by “appupdater”.

Emulate a 1977 vintage Texas Instruments TI-58/58C/59 calculator. This programmable emulator lets you load/save programs, it includes an implementation of the original Master Library module and many other modules (Leisure, Math, Surveying, Electrical, Aviation, Marine). Sources on GitHub at https://github.com/TurboGit/ti5x_android include a tools for building your own program/module files. The ti5x application does aim for 100% authenticity even if not possible in all cases. Yet, it supports many undocumented features from the original calculator like the HIR registers and the /DSZ nn 51/ (decrement no-jump) instructions. With the current version it is possible to play some famous games. And many original programs are running without modification.

Version history

3 versions are listed, going back to v9.5. Since v10.2 it requires Android 6.0+.

v10.3 LATEST Sep 1, 2026 10.3 MB TRUSTED v10.2 Jun 11, 2026 10.3 MB TRUSTED v9.5 Feb 8, 2026 6.7 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Sep 1, 2026.
Certificate issued to “Home” This is the certificate of the Google Play version.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Sep 1, 2026
Validated against Google Play Sep 1, 2026
Signed byCN=Pascal Obry, O=Home, L=Magny-les-Hameaux, ST=France, C=FR
Signing certificate (SHA-1)4F:8A:77:AB:D3:A7:B0:EC:D6:F2:F1:E1:0B:C4:C1:F4:80:DF:90:D1
File MD59b04110b66ce782a468d1800daf3ae3f
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (5)

Emulator for TI-59 Calculator requests 5 permissions, 2 of them sensitive.

Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
Control vibration android.permission.VIBRATE
Full network access android.permission.INTERNET
Internal broadcast protection (app-defined) net.obry.ti5x.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Required hardware & features

Basic touch input android.hardware.faketouch
Portrait screen android.hardware.screen.portrait

Emulator for TI-59 Calculator APK: questions and answers

Is there a version of Emulator for TI-59 Calculator for older Android phones?

The current version needs Android 6.0 or later. Version 9.5 is the newest listed build that installs on Android 4.1 and later. Get version 9.5 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Emulator for TI-59 Calculator APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is 9b04110b66ce782a468d1800daf3ae3f.