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Touch RPN calc

Touch RPN calc

Financial/Sci RPN calculator

207 ratings
207 reviews
With Ads
📊 Productivity
💰 Finance
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • December 7, 2014
  • June 22, 2026

Features

Developer

Elvis Pfutzenreuter
✨Promote your app ✨
Touch RPN calc screenshot #1 for iPhone
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Touch RPN calc screenshot #9 for iPhone
🧾Free - $6.99
In-App Purchase↘︎
📌Ready
Reviews summary↘︎
⭐207
Reviews↘︎
📝16+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦~ in 2 months
Updates frequency↘︎
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About

This app offers a powerful RPN calculator with financial and scientific functions, mimicking popular industry-standard models. It includes programming capabilities and expandable flavors for diverse calculation needs.

✓RPN financial calculator
✓RPN scientific calculator
✓Programming functions
✓HP-12C emulation
✓HP-11C emulation
✓Expandable calculator flavors
Show original description

What users say

Summarized from real user reviews of Touch RPN calc. Based on 207 reviews and a 3.4/5 average, it highlights the 5 positives and 5 negatives reviewers mention most about this Finance app.

Positive things

  • 🚀Excellent HP calculator emulation
  • 👍Looks and works like the real thing
  • 👍Portrait and landscape modes
  • 👍Paid version is ad-free
  • 👍Great RPN calculator

Negative things

  • 🐛Ads in free version
  • 🐛Ads appearing in paid version
  • 🐛Incorrect calculations
  • 🐛Landscape mode issues
  • 🐛Inability to clear memory
See all reviews

What's New in Touch RPN calc

7.20

June 22, 2026

- Settings: add option to change ON button to original appearance - Settings: add option to change height of top band / LCD in landscape orientation - Fixes in Scientific Advanced (thanks to F. Vincent) - Fixes in Financial and Scientific (thanks to C. Nunes)

More
10

In-App Purchases

$6.99

Financial Premium

Ad-free RPN fin calc

User reviews

Most RecentHighest RatedLowest Rated

Excelente

Muito obrigado por proporcionar isso de maneira gratuita!
CarlosdgeronimoCarlosdgeronimo

Atualização nova muito ruim mudou todo display já não é mais hp12c

Atualização nova muito ruim mudou todo display já não é mais hp12c
Alelima17Alelima17

Response from developer

Desculpe, mas não entendemos sua reclamação, poderia nos fornecer mais detalhes? Entre em contato via o email a seguir: stendec@stendec.io

Ads a’plenty

Now featuring full screen ads. Why bother with calculator nonsense when you can bask in full bore unbridled advertising hypersaturation!
Nn10345Nn10345

iPhone rendering change?

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?
Shuy64Shuy64

Sensacional, pena que só podemos dar 5 estrelas!

Sensacional, pena que só podemos dar 5 estrelas!
ngodoylpngodoylp
See 202 more reviews

Developer apps

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(9)

Free
In-App PurchasesWith Ads
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User experience

🐞

Reported Bugs

3 issues

Stopped working after iOS upgrade

Bug

Landscape mode not functioning properly

Bug

Ads appearing in paid version

Bug
✨

Requested Features

3 requests

Paste feature

Feature

Option to switch between RPN and algebraic modes

Feature

Ability to see stack contents instead of ads in paid version

Feature

FAQ

What kind of calculator is this?

This app is a Reverse Polish Notation (RPN) calculator. It offers both financial and scientific calculation modes, designed to emulate popular industry-standard models like the HP-12C and HP-11C.

Does it have programming features?

Yes, it implements programming functions similar to the HP-12C. This allows users to create and run custom programs directly on the calculator.

Are there additional features available?

Yes, additional calculator flavors, such as those resembling the 10C and 16C models, can be purchased within the app. This expands the app's functionality to cater to a wider range of user preferences.

What is the cost of this calculator app?

The app is free to download and use with its core financial and scientific RPN functions. Additional calculator flavors are available for purchase through in-app purchases.

Who would benefit from using this app?

This app is ideal for students, professionals, and hobbyists who prefer or require the RPN input method for complex financial, scientific, or programming tasks. It's particularly suited for users familiar with HP calculators.