Touch RPN, formerly known as Touch Fin, is an RPN calculator. This app implements many features of the industry-standard HP-12C.
This app offers many additional flavors of RPN calculators, including financial, scientific and for computer programming.
Two flavors are available for free (ad-supported): financial and scientific. Additional ad-free flavors are available for purchase within the app. The purchased flavors also offer vertical layout and saving memory to files.
Press the ON key to change Settings, choose the active flavor, and purchase additional flavors.
Latest Version
7.10Uploaded by
Дмитрий Банит
Requires Android
Android 10.0+
Category
Free Business AppContent Rating
Everyone
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Flag as inappropriateLast updated on May 4, 2026
- ON button icon replaced by Menu ("hamburger") to make clearer it opens the app Settings
- Interface can now be stretched by any combination of distortion and spacing (open Settings using Menu button to adjust)
- Load .15c program files from Torsten Manz 15C simulator
- Scientific Advanced: register count increased to 254
- Fix in Scientific Advanced program typing (e.g. f LBL f A key sequence is now accepted as f LBL A)
- Support to wide-gamut colors