Free42 Icon

Free42 3.3.9a

By Thomas Okken • February 24, 2026
Tools Universal Native (Java/Kotlin) 7.61 MB
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File Information

Package Namecom.thomasokken.free42
Version Name3.3.9a
Version Code209
ArchitectureUniversal
Min Android VersionAndroid 19 (API 35)
Main Activitycom.thomasokken.free42.Free42Activity
FrameworkNative (Java/Kotlin)
File Size7.61 MB
Signature (SHA1)47A7FBFF9AC06C8A9AB13D0D9541A41CDADAED0D
File Hash (SHA256)01e9bf63f6968ba79bede8d9533602c9f726930b0c746c824a4024bfb8e046cf

What's New

Another workaround for the buggy vibrator in Android 16. This one is a new option, "use older haptic feedback logic," for phones like the Pixel 10 Pro, where the pre-3.3.8f haptic feedback logic worked, but the new logic introduced in 3.3.8f does not.

App Description

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.
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APK Permissions 4

  • android.permission.ACCESS_COARSE_LOCATION
  • android.permission.ACCESS_FINE_LOCATION
  • android.permission.INTERNET
  • android.permission.VIBRATE
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The cryptographic signature guarantees that the file is safe to install and was not tampered with in any way.

Other Variants

This release has multiple variants (e.g. diff architectures).

arm64-v8a armeabi-v7a
Developer

Name: Thomas Okken

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