Emulator for TI-59 Calculator

4.3
606 reviews
50K+
Downloads
Content rating
Everyone
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About this app

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.
Updated on
Nov 10, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

4.3
533 reviews
Joe Briggs
October 26, 2021
This is an excellent TI/AOS calculator with the EE & ENG, and 1/x keys that I am so used to. My 3/5 stars have to do with usability. There is a loud and annoying keypress sound that I can't find a way to disable. The double line font is hard to read - solid would be better. And for those of us with low color vision, changing the red-on-black numeric display to a higher contrast combo would be helpful (although this is true to product). Love it but hard for an old geezer to use.
9 people found this review helpful
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Kevin Schwinkendorf
December 22, 2022
I love this app. I owned a real TI-59 when I was in college (and still do). I appreciate that this emulator also implements undocumented features of the original TI-59 such as the HIR function. One particular program I ordered from the old PPX-59 group used this HIR function and other TI-59 emulators (e.g., for Windows) fail to support these features. This emulator also includes several of the Solid State Software Modules available for the original TI-59. So, five stars for this app.
2 people found this review helpful
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Artie Hall
January 1, 2024
I love this app. I still have my 58C, but the battery pack is dead. I've had this through three phones now. This is where I was complaining that some functions weren't available on my moto e. I see the author fixed those issues in an update. Outstanding. Now this app is perfect.
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What's new

v8.7, 2023 November 10th:
Fix D.MS implementation precision.

v8.6, 2022 December 24th:
Minor color adjustments.

v8.5, 2022 December 19th:
Rewrite action menu using latest API.

v8.4, 2022 December 17th:
Minor top-bar layout change.

v8.3, 2022 November 16th:
Add MM-04 in Contribution Library.

v8.2, 2022 November 4th:
Add in-app data exporter in append mode (n Inv Op 97).
Fix some broken URL.