RPN-65 SD for Android - Download Free [Latest Version + MOD] 2025

Whats new in RPN-65 SD v4.1

6 things about RPN-65 SD

1. RPN-65 SD is the iPhone version of RPN-65 Pro, the first complete simulation of Hewlett-Packard's stunning HP-65 programmable calculator for iOS.
2. Not only was it programmable, it also contained a motorized magnetic card reader - and still fit into Bill Hewlett's shirt pocket.
3. World's first pocket computer! Now running on your iPhone.
4. Produced from 1974 to 1977 at an initial price of $795 (that's close to $5,000 today!), the HP-65 was a breakthrough.
5. Experience this revolutionary calculator on your iPhone.
6. With over 180 original HP programs included with the app, you can get started right away.

Release date: 2024-10-30
Current version: 4.1
File size: 62.63 MB
Developer: CuVee Software

How to setup RPN-65 SD APK:

APK (Android Package Kit) files are the raw files of an Android app. Learn how to install rpn-65-sd.apk file on your phone in 4 Simple Steps:

Download the rpn-65-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-65-sd.apk file and click to Install: Read all on-screen prompts and click "Yes" or "No" accordingly.
After installation, the RPN-65 SD app will appear on the home screen of your device.

Is RPN-65 SD APK Safe?

Yes. We provide some of the safest Apk download mirrors for getting the RPN-65 SD apk.

Download Mirrors

Mirrors: Download for Android

On iTunes: $2.99 On iTunes

Reviews

My go-to calculator

I’ve always been an HP calculator fan. My first calculator was a National Semiconductor RPN scientific. But I couldn’t afford the HP’s when I was in school. Now that I have an Android in my pocket every day, I don’t have as much need for a separate physical calculator. I’ve tried an HP-41c emulator that was somewhat disappointing. Andy Ihnatko recommended this one, so I gave it a shot. Graphically perfect. Keys are extremely responsive. The program card animation makes me smile. I somehow hit a button that put me in a weird mode. I couldn’t get out of it, so I emailed the developer. He got back to me within a day and helped me reverse my stupidity. I can’t recommend this one highly enough.

~ By PBraun42