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About Graph 89

Emulate any of the following calculators:

* TI89, TI89T
* TI92, TI92+
* V200
* TI84+, TI84+SE
* TI83, TI83+, TI83+SE

No ROM images are included. You can extract one from your own calculator or if you have a physical device, download an OS upgrade image from TI.

This is a fork of Graph 89 to support 64-bit OS architectures and the modern Android Storage Access Framework.

This app is not actively being improved.
Special thanks to eanema for their work getting it working with 64-bit devices.
https://github.com/Perihelion-Development/graph89

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Best Calculator around!

John Weilbacher

Please fix the bug that is currently crashing the calculator when attempting to send programs and data to TI files such as .89p and .89e files. When attempting to do so by navigating to var-link and choosing...

Fred Bailey

use it everyday works great!

T.J. Thomas

Love the app on my Pixel 8, but I can't access the settings once I've loaded the rom. On older phones I'd press the back arrow and it would bring up the menu, pressing it twice would close the app. Now hitti...

Arthur Redgate

Woohoo! It's back!

Jeffrey Flynt

Best TI89 emulator out there.

Jose Sierra