RPN-45 scientific calculator

Name: RPN-45 scientific calculator
Price: 3.99 USD
Rating: 3.857143 (121 reviews)
Author: Martin Krischik

By: Martin Krischik

A scientific calculator based on the classic HP-45 calculator.

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Features & Capabilities

RPN-45 scientific calculator is a true hardware emulation of the classic HP-45 calculator will behave just like the original.

The following Android functions are supported:

• Calculation results can be copies to the clipboard.
• Can be installed on the SD-Card.
• Participates in Androids build in backup and restore.
• Honeycomb Tablet compatible.
• Extra Printer for Honeycomb Tablets (visit our web-page for screen shot).

Please visit our web-page for more informations and support. Remember that the Market-Comments have no answer function and I can't help you if you post there.

User Growth & Download Statistics

App

By:

Downloads:

Rating:

Version:

7.2(10) Last updated: 2025-12-20

Version code:

70210

Creation date:

2010-06-13

Publisher country:

Permissions:

android.permission.FOREGROUND_SERVICE Low risk
android.permission.INTERNET Low risk
net.sourceforge.uiq3.hp45.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Size:

11.25MB

Price:

3.99

Email:

hp*****@krischik.com

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2026-06-11

Compare stats and ranking:

Ranking

# 673,451 ▲ 3,294

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:

Martin Krischik

Google Play Store

https://play.google.com/store/apps/details?id=net.sourceforge.uiq3.hp45

Email:

hp*****@krischik.com

Website:

https://uiq3.sourceforge.io/rpn-45/

User Reviews

Great app. Works fine on my LG G7 Thinq running Android 9. 4 years later, worked fine on my galaxy s20, galaxy flip 4 and now galaxy flip 6. I have never found any flaws. I purchased an hp45 in 1973, still use that calculator as well.

Ri*****, 2024-09-29

Works exactly as advertised - an essentially perfect emulation of the 50 year old HP45. I use it for the nostalgic computation experience (the original replaced my slide rule in physics classes - I spent the small fortune of $395.00 to purchase directly from HP), and it does that perfectly.