About RPN-55 SD

RPN-55 SD is a Productivity app by CuVee Software. RPN-55 SD is the first photo-realistic simulation for the iPhone of Hewlett-Packard's low-cost alternative to the famous HP-65 programmable scientific calculator. Produced from 1975 through 1977, it was the "Merlin" member of the classic HP calculator series, priced at $395.

is RPN-55 SD free? RPN-55 SD costs $1.99

RPN-55 SD Screenshots

Download and install APK on Android

How to setup RPN-55 SD APK:

APK (Android Package Kit) files are the raw files of an Android app. Learn how to install rpn-55-sd.apk file on your phone in 4 Simple Steps:

Download the rpn-55-sd.apk to your device using any of the download mirrors.
Allow 3rd Party (non playstore) apps on your device: Go to Menu » Settings » Security » . Click "Unknown Sources". You will be prompted to allow your browser or file manager to install APKs.
Locate the rpn-55-sd.apk file and click to Install: Read all on-screen prompts and click "Yes" or "No" accordingly.
After installation, the RPN-55 SD app will appear on the home screen of your device.

Is RPN-55 SD APK Safe?

Yes. We provide some of the safest Apk download mirrors for getting the RPN-55 SD apk.

RPN-55 SD v2.9 APK Download Mirrors

On iTunes: $1.99 On iTunes

Mirrors: Download for Android

Whats new in v2.9

Release date: 2024-01-13
Current version: 2.9
File size: 17.67 MB
Developer: CuVee Software
Compatibility: Requires iOS 8.0 or later. or Android KitKat 4.4, Lollipop 5.0, Marshmallow 6.0, Nougat 7.0, Oreo 8.0, Android Pie 9.0, Quince Tart 10, Red velvet cake 11, Snow cone 12 or later versions

6 things about RPN-55 SD

1. RPN-55 SD is the first photo-realistic simulation for the iPhone of Hewlett-Packard's low-cost alternative to the famous HP-65 programmable scientific calculator.

2. While the simulator works just like the original calculator – except being much faster and having twice the program memory – you can turn on extended features to make it even more enjoyable to use.

3. A main feature of the HP-55 was a crystal-controlled 100-hr digital timer with the ability to store times while the timer was running and later recall them.

4. On RPN-55 SD the timer may also act as a 12-hr or 24-hr clock, including date and weekday display.

5. Produced from 1975 through 1977, it was the "Merlin" member of the classic HP calculator series, priced at $395.

6. RPN-55 SD comes complete with original HP programs built in.

Apk Mirror 1: : Download APK