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Touch RPN calc

Touch RPN calc

Financial/Sci RPN calculator

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

Details

Released
December 7, 2014
Updated
October 7, 2026

Features

Developer

Elvis Pfutzenreuter
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Touch RPN calc screenshot #1 for iPhone
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Touch RPN calc screenshot #8 for iPhone
iphone
ipad
🧾$2.99 - $6.99
In-App Purchase↘︎
📌Ready
Reviews summary↘︎
⭐212
Reviews↘︎
📝15+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦~ in 2 months
Updates frequency↘︎
🖼️Get Icon
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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 about Touch RPN calc

Reviews of Touch RPN calc are mostly positive: the Finance app is rated 3.4/5 from 210 App Store ratings. What users like most: excellent HP calculator emulation, looks and works like the real thing. Top complaints: ads in free version, ads appearing in paid version. Summarized from real user reviews.

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

8.00

October 7, 2026

Add option to show 13 digits on LCD

7

Subscriptions & In-App Purchases

$6.99

Financial Premium

Ad-free RPN fin calc

User reviews

Most RecentHighest RatedLowest Rated

Gostei demais!

Parabéns aos desenvolvedores!
SSaralmeidab

Comprei em 2020 e voltou a aparecer propaganda

Gostaria de obter um
Suporte. Comprei em 2020 e do nada voltou a aparecer anuncios.
NNunesfp

Response from developer

Olá, você pode restaurar compras (desde que feitas com o mesmo Apple ID) seguindo as instruções da página a seguir: https://stendec.io/ctb/touchios/purchase_pt.html

Espetacular

Esta calculadora é excelente. Eu a uso há anos, sempre sendo mantida e melhorada pelo desenvolvedor. Nunca tive um problema sequer. Uso no meu iPhone e no meu MacBook. Estão de parabéns! Obrigado!
MMargonfil

Display Vertical

Não aceita visor horizontal no mesmo formato da calculadora física. Ficou horrível não girar.
RGRanieri De Goes

Response from developer

Olá Para usar a calculadora no modo horizontal clique na tecla ON na esquerda da tela, clique em Mais no canto superior esquerdo e escolha o modo de sua preferência: Retrato ou Paisagem, forçando a calculadora a ficar em tal posição. Oferecemos também o modo Auto (Abreviação de Automatico) para mudar de Layout quando rotacionar seu aparelho. Caso esteja usando o modo Auto, certifique-se que seu dispositívo não esteja "trancado" em modo Vertical. Assim, impossibilita a rotação automática da calculadora.

O MELHOR APP

Nota 10
JSJoão Chapecó sc
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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.