Emu42 for Android

Emu42 for Android is a powerful emulator that brings a wide range of HP calculators, including models 10B, 14B, 17B, 19BII, 20S, 21S, 22S, 27S, 28S, 32S, 32SII, and 42S, to your Android device. This app ports the original Windows Emu42 application using the Android NDK, preserving the core functionality and file compatibility with the original source.

Users need to supply their own KML scripts and ROM files to operate the calculators, which must be carefully managed for case sensitivity on Android. The app requires Android 5.0 or later and offers an authentic calculator emulation environment without requesting unnecessary permissions. Emu42 for Android is open-source under the GNU GPL license, ensuring transparency and community-driven development.