48sx, a vintage RPN calculator is an app by Drehersoft in the Productivity category, listed since at least June 2022. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.
Since version v13.1, the minimum Android version rose from 4.4 to 5.0. It asks for 2 permissions, 2 of them sensitive: read media images and read media visual user selected. It asks for the same permissions as version v14.1.
What's new in v15.2
- Intended to work from Android 5 to 15 on armeabi-v7a, arm64-v8a, x86 and x86_64 architectures
- In recent versions of Android, you must grant the 'Photos and Videos' permission for 'Load object on stack' and 'Save/Restore checkpoint ZIP' to function properly. The file must be located in the Download folder and have a '.png' extension. I hope it will be OK for Google Play!
Description
From the listing uploaded by “appupdater”.
48sx: The HP48 SX Emulator!
The HP48 SX is a vintage RPN calculator that many of us remember with fondness. I used this calculator 30 years ago and fell in love with it. Now, I can carry it in my pocket every day!
The HP48 SX emulator for Android is available on the Play Store and GitHub. The bundled ROM is free for non-commercial use. No nags, no ads, and completely FREE!
- Play Store: https://play.google.com/store/apps/details?id=org.czo.droid48sx
- Releases apk: https://github.com/czodroid/droid48sx/releases
- Sources code: https://github.com/czodroid/droid48sx
48sx is a modified version of droid48, specifically tailored for the HP48 SX. Credit goes to Arnaud Brochard (author of droid48 for Android) and Eddie C. Dost (author of x48 for UNIX), who created an emulator of the Saturn processor in 1990.
48sx CHANGELOG
===============
* 15 Aug 2024 (Version 14.1.28728418)
- Bug fixes and performance improvements
- Intended to work from Android 5 to 14 on armeabi-v7a, arm64-v8a, x86 and x86_64 architectures
- In recent versions of Android, you must grant the 'Photos and Videos' permission for 'Load object on stack' and 'Save/Restore checkpoint ZIP' to function properly. The file must be located in the Download folder and have a '.png' extension.
* 11 Feb 2024 (Version 13.1.28459983)
- Bug fixes and performance improvements
- Intended to work from Android 4.4 to 13 on armeabi-v7a, arm64-v8a, x86 and x86_64 architectures
- On Android 13 (API 33), you must grant the 'Photos and Videos' permission for 'Load object on stack' and 'Save/Restore checkpoint ZIP' to function properly. The file must be located in the Download folder and have a '.png' extension.
* 26 Aug 2023 (Version 2.42.28217746)
- Bug fixes and performance improvements
- Intended to work from Android 4.4 to 13 on armeabi-v7a, arm64-v8a, x86 and x86_64 architectures
- New name for checkpoint ZIP: Download/48sx_cp_$DATE.zip
- New SVG icon for Android above Oreo (Android 8, API >= 26)
* 10 Jul 2022 (Version 2.42.27624074)
- Bug fixes and performance improvements
- Intended to work from Android 4.4 to 12 on armeabi-v7a, arm64-v8a, x86 and x86_64 architectures
- Fixed the "Large LCD" option in the settings, and replaced it with "HP48 LCD" to get full pixels
- The HP48's LCD screen has now a maximum width on your device, but you can set "HP48 LCD" in the settings get full pixels
* 4 June 2022 (Version 2.42.27573940)
- Bug fixes and performance improvements
- Intended to work from Android 4.4 to 12 on armeabi-v7a, arm64-v8a, x86 and x86_64 architectures
- Haptic feedback enabled by default, but can be disabled on settings
- New menu: 'Save checkpoint ZIP As...' : save the current checkpoint in a zipped file (in Download/checkpoint_$DATE.zip). This zip file must contain the files ('hp48', 'rom', 'ram' and maybe 'port1' or 'port2')
- New menu: 'Restore checkpoint ZIP' : restore from a zipped checkpoint.zip (that you choose)
- Permissions on "Choose File" works on some Android 11 and 12, depending on the brand. This will be my next update...
- When the action bar is enabled, pressing an hp48 button disables it again
- Checkpoint is saved at the first startup and new functions to load a stuck HP48
- New shortcuts, one for full reset, and another to restore from a checkpoint when the emulator is stuck
Version history
3 versions are listed, going back to vv13.1. Since vv14.1 it requires Android 5.0+.
Uploaded by “appupdater”Gold tier · 117,810 followers · uploading since 2020
Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Permissions (2)
48sx, a vintage RPN calculator requests 2 permissions, 2 of them sensitive.
Read media imagesSensitiveandroid.permission.READ_MEDIA_IMAGES
Read media visual user selectedSensitiveandroid.permission.READ_MEDIA_VISUAL_USER_SELECTED
Required hardware & features
Basic touch inputandroid.hardware.faketouch
48sx, a vintage RPN calculator APK: questions and answers
Is there a version of 48sx, a vintage RPN calculator for older Android phones?
The current version needs Android 5.0 or later. Version v13.1 is the newest listed build that installs on Android 4.4 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version v13.1 · All versions
Can I install this APK over the version I already have?
Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.
Is the 48sx, a vintage RPN calculator APK safe?
No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is 38ca928bc210cd388e5d120f8b31cbc2.
