Touch RPN Calculator

7.20

STENDEC

3.68

6,333 reviews

1,000,000+
Downloads

Free

Free RPN calculator with industry-standard features

Touch RPN Calculator delivers HP-12C–inspired RPN computing across financial, scientific, and programming flavors. The free, ad-supported options plus paid ad-free upgrades offer memory-saving and vertical layout, with a Brazil BUSINESS rank of #163 and a solid 3.71 rating from 6,329 reviews. Total downloads reach 1,000,000+ with 5.2K in the last 30 days.

Pros & Cons

Offers multiple flavors (financial, scientific, programming) for broad use cases
Free ad-supported options plus purchasable ad-free upgrades
Memory saving to files improves long-term program storage
Vertical layout support in paid flavors

Lacks broader non-RPN features such as unit conversions, algebraic modes, or advanced statistics compared to rivals

About Touch RPN Calculator

Touch RPN Calculator is a business app developed by STENDEC.

Download Statistics

Touch RPN Calculator has been downloaded 2.2 million times. In the last 30 days, the app was downloaded 5.2 thousand times.

User Ratings

Touch RPN Calculator is rated 3.68 out of 5 stars. The rating is based on 6.3 thousand ratings.

App Information

Touch RPN Calculator is FREE to download. The APK download size is 18.83 MB. The latest version available is 7.20. The last update was on June 11, 2026.

Technical Requirements

Touch RPN Calculator requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play October 2016.

Description

Touch RPN, formerly known as Touch Fin, is an RPN calculator. This app implements many features of the industry-standard HP-12C.

This app offers many additional flavors of RPN calculators, including financial, scientific and for computer programming.

Two flavors are available for free (ad-supported): financial and scientific. Additional ad-free flavors are available for purchase within the app. The purchased flavors also offer vertical layout and saving memory to files.

Press the ON key to change Settings, choose the active flavor, and purchase additional flavors.

Recent changes:
- 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)

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More data about Touch RPN Calculator

Price	Free to download
Total downloads	2.2 million
Recent downloads	5.2 thousand
Rating	3.68 based on 6.3 thousand ratings
Ranking	Not ranked
Version	7.20
APK size	18.8 MB
Number of libraries	35
Designed for Android	5.0+
Suitable for	Everyone
Ads	Contains ads

App Performance Report

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Alternative downloads for the Touch RPN Calculator app

Touch RPN Calculator compared with similar apps

Common keywords of similar apps

Flavors Touch Additional Settings Industry Ad Purchase Files Key Button Menu Program Advanced Lbl Rpn App Scientific Calculator Free Standard Features Financial

Keywords missing from this app

Hp Functions Converter Display Calculations Recent Calculation Mode Notation Equations Includes Number Numbers Support Complex Statistics Version Modes Reverse Polish Algebraic Formulas Unit Section Reference Interest Memory Linear Calculators Classic Arithmetic Decimal Algebra Including Stack Fractions History Full Conversion Conversions Realcalc Emulator

Google Play Rating history and histogram

Downloads over time

Touch RPN Calculator has been downloaded 2.2 million times. Over the past 30 days, it averaged 170 downloads per day.

Changelog of Touch RPN Calculator

Show changelog

Developer information for STENDEC

STENDEC

stendec@stendec.io

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Comments on Touch RPN Calculator for Android

★★★★★ Frederic Vincent · Apr 11, 2025

Excellent app to access all flavors of the classic HP Voyager models of calculators. And the premium models switch button is a quite nice convenience feature. Last but not least, the exact same Voyager calculator apps are available on the desktop browser from the developer's website.

★★★★★ Sergio Sperb · Jul 7, 2022

Had a little problem regarding the Premium version of the financial calculator but after a feedback from the support its working fine. Thank you!

★★★★★ Greg S · Jul 31, 2021

OK... Updating my review back to 5 stars... The recent update wiped out my paid subscription and made ads appear, but I was able to restore it to add free by changing the flavors. It is a great RPN app just glad the vendor is still honoring their commitment.

★☆☆☆☆ A Google user · Jan 5, 2024

Careful with this seller. He removed the previous premium version, which I bought and re-added it to Google Play under a different name (Same app I believe) to get people to buy it again. Looks like he said it wasn't his fault, but I did not receive a refund to buy it again. I bought a different version.

★☆☆☆☆ Ian Bradley · Aug 14, 2021

New update has ads, although I Previously paid for ad free version. Tried changing the"flavor" back to premium but wants me to pay for it again. This is NOT what I originally purchased! Please fix, or refund the original purchase.

★☆☆☆☆ Scott Dysart · Jan 8, 2022

If you are on a much older version you like, do not upgrade. I inadvertently updated this once outstanding, polished app to the advertising layden monstrosity it has become. If taking values from another app, you are presented with an unclosable ad for each number entered. I like that developers can monetize their work product but seriously, when you have to be subjected to multiple full screen ads and play find the tiny close hot spot just to do a single calculation it has gone too far.

Google Play Rankings for Touch RPN Calculator

This app is not ranked

Technologies used by Touch RPN Calculator

Touch RPN Calculator is requesting 15 permissions and is using 35 libraries.
Show details

Trust & Safety: The app requests a mix of permissions typical for network access, foreground service, notifications, ad IDs, and billing (including license checks and install referrer). It also uses a non-exported dynamic receiver. This pattern aligns with monetization and update delivery workflows; no explicit sensitive personal data permissions are listed in the provided data.

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