Touch RPN calc

Name: Touch RPN calc
Rating: 3.4 (207 reviews)
Author: Elvis Pfutzenreuter

By: Elvis Pfutzenreuter

Financial/Sci RPN calculator

Features & Capabilities

Touch RPN calc is a financial and scientific RPN calculator that emulates the HP-12C programming environment. It implements most HP-12C financial functions, programmable keys, and support for building multi-step programs to handle complex calculations.

The app also includes a scientific RPN flavor modeled after the HP-11C, with additional flavors (10C-like, 16C-like) available as in-app purchases. This makes Touch RPN calc a versatile tool for finance professionals, engineers, and students on mobile.

User Growth & Download Statistics

App Programming Education

By:

Elvis Pfutzenreuter

Rating:

3.40

(207)

Version:

7.11 Last updated: 2026-04-21

Version code:

884734966

Creation date:

2014-12-07

Compatible devices:

Size:

33.61MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-11

Compare stats and ranking:

Ranking

# 126,967 ▼ 23

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

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

Developed by:

Elvis Pfutzenreuter

Apple Apps Store

https://apps.apple.com/us/app/touch-rpn-calc/id946171077

Website:

https://stendec.io/ctb/touchios/

User Reviews

Reviewers praise Touch RPN calc for faithful HP-style emulation, speed, and reliability. The app supports HP 12C/11C/16C models, easy model switching, and both portrait and landscape orientations. The paid version offering an ad-free experience is valued by many, though several users report ads still appearing after purchase. iOS updates sometimes bring reliability or layout issues. Overall, it’s a useful, long-standing tool for quick financial calculations, beloved by HP calculator fans despite ongoing ad-related frustrations.

Pros

Faithful HP-style RPN emulation (12C/11C/16C) that feels like the real calculators
Fast performance and responsive operation
Ad-free option available via a paid version for those who want an uninterrupted experience
Supports portrait and landscape orientations for flexible use
Easy switching among HP models (12C, 11C, 16C) and quick access to favorites

Cons

Ads persist even after paying for the ad-free version, with inconsistent ad removal
Ads can be distracting, including pop-ups or refreshing banners that affect focus
iOS updates can bring reliability or layout issues (crashes or portrait-only behavior in some updates)

Recent reviews

Now featuring full screen ads. Why bother with calculator nonsense when you can bask in full bore unbridled advertising hypersaturation!

by Nn*****, 2026-04-26

I’ve enjoyed this app for several years. Recently I’ve noticed an appearance change on my iPhone. The display and keyboard seems stretched in a vertical direction. Was a change made?