Free42
Thomas Okken Utilities iPhoneiPadiPod touch
Free42 is a free Utilities app for iPhone and iPad by Thomas Okken. Rated 4.8/5 from 284 ratings. Requires iOS 12.0. Updated May 5, 2026.
- Rating
- 4.8
- 284 ratings
- Price
- Free
- on the App Store
- Size
- 9 MB
- Age 4+
- Updated
- May 5
- 2026 · v3.3.12
Screenshots
About Free42
Free42 is a re-implementation of the HP-42S calculator and the HP-82240 printer. It is a complete rewrite, not using any HP code, and it does not require an HP-42S ROM image. Free42 is an Open Source project. The executables and source code are released under the terms of the GNU General Public License, version 2. All third-party code used in Free42 is either in the public domain, or licensed under terms compatible with GPLv2, or used with the authors' permission.
Ratings & reviews
4.8
284 ratings
What’s new
Version 3.3.12 · Updated May 5, 2026
Fixed RLN and RRN for negative numbers in BSIGNED mode. More accurate GAMMA for integer arguments.