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Android Apps > Finance > RpnCalc Financial Calculator
RpnCalc Financial Calculator icon

RpnCalc Financial Calculator

by Edward Falk · Finance · $4.99
On Google Play since December 2016 · Data updated 2026-09-21
Google Play

RpnCalc Financial Calculator is made and published by Edward Falk. AppBrain is an independent app data site and isn't affiliated with Edward Falk. The app name, icon, screenshots and description belong to Edward Falk and are shown as published on Google Play.

AppBrain's verdict

EstablishedNicheLoved by users
Total installs
4 thousand
Rating on Google Play
4.68
170 ratings
Last updated
December 5, 2022

RpnCalc Financial Calculator is a niche app, with 4 thousand installs. Users love it: 4.7 stars from 170 ratings.

Summary

RpnCalc Financial is not ranked in any top list, yet it's described as the oldest top-rated financial calculator on Android Market, delivering a familiar yet powerful toolkit for serious finance work. It combines a 16-level RPN stack with a front-four display, programmable steps, and a broad feature set that covers TVM, amortization, IRR/NPV, and bond pricing.

Pros & Cons

  • 16-level RPN stack with visible front elements for easier tracking
  • Programmable with 99 steps and 20 memories for customization
  • Broad finance functionality: TVM, IRR/NPV, amortization, bond pricing
  • Symbolic program display and SD-card storage for easy program management
  • Narrower focus on finance features; lacks broader topics like stock analysis or mortgage tools present in some competitors
  • Requests external storage permissions (READ_EXTERNAL_STORAGE, WRITE_EXTERNAL_STORAGE) which may raise privacy considerations

Installs

Tracked by AppBrain
Last 30 days
22
Play install range
1+ thousand
Launched
December 2016

Installs over time

RpnCalc Financial Calculator has been installed 4 thousand times. Over the past 30 days, it has been installed 22 times.

Rankings

Google Play top charts

Google Play Rankings for RpnCalc Financial Calculator

This app is not ranked

Competitors

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Releases

Updates seen on Google Play
Version
3.0
Launched
December 2016
  • Dec 5, 2022UpdateVersion 3.0
  • Sep 17, 2022Price DropNew price: $4.99 ($7.27)
  • Sep 9, 2022Price IncreaseNew price: $7.27 ($4.99)
  • May 13, 2022Price IncreaseNew price: $4.99 ($4.63)
  • Apr 28, 2022Price DropNew price: $4.63 ($4.99)
Show all changes Show fewer

User feedback

Ratings and reviews on Google Play

Google Play Rating history and histogram

150
9
3
3
6

Comments on RpnCalc Financial Calculator for Android

★★★★★ Eliel Cooney · Dec 26, 2022
I still have and still use the original Hewlett Packard HP12C. Mr Falk's app has been on all my Android phones. He perfectly replicates the original hardware, which remains to this day, 41 years after its introduction, the gold standard for financial calculators. This app is highly recommended.
★★★★★ Riaan Jordaan · Mar 6, 2018
I have been RPN-ing since 1976 (yuk)! Been on an actual HP12C since they were launched... And then Ed Falk launched this - as the description says "The best financial calculator on the market." Period....
★★☆☆☆ DCB DCB · Jan 10, 2023
Amortization schedule does not show up in window. Looks like black type on black background. So it is unreadable. Sent a few emails to developer for help or refund but no response. Financial RpnCalc installed on a Google Pixel 6. Otherwise, this is a fantastic HP 12c alternative.
★☆☆☆☆ Kenneth Li · Apr 30, 2024
The publisher of this App does not appear to support the product which doesn't appear to be working any longer. The app keeps switching to the publisher's scientific RPN calculator without prompting, and I have to reinstall it many times to the point that I'm now really fed up.
★☆☆☆☆ Jim Gluckin · Jan 25, 2023
Program no longer allows loading and saving of program files. The calculator program immediately quits if you attempt to load or save a program file. Granting access permission to both media and files does not help. Vital function for extended usage. Have sent several feedback explanations but nothing heard yet.
★★☆☆☆ Budana Prijadi · Jul 2, 2018
TMV calculations are off compared to Excel and HP12C. As an illustration, try it yourself and enter these numbers: $100000 (FV), 9% (i), 5 (n), calculate PV. Off by 6%? Is there a setting to make calculations more precise?

Technology

Found in the app by AppBrain
Ads
No ads
Price
$4.99
Libraries
0
App size
1.42 MB
Needs Android
1.6+
Content rating
Everyone

Technologies used by RpnCalc Financial Calculator

2 permissions
Subscribe to see full permission and library details
Trust & Safety: Requested permissions: READ_EXTERNAL_STORAGE, WRITE_EXTERNAL_STORAGE. The app is ProGuarded, indicating code obfuscation for security.

About the app and developer

About RpnCalc Financial Calculator

RpnCalc Financial Calculator is a finance app developed by Edward Falk.

Install Statistics

RpnCalc Financial Calculator has been installed 4 thousand times. In the last 30 days, the app was installed 22 times.

User Ratings

RpnCalc Financial Calculator is rated 4.68 out of 5 stars. The rating is based on 170 ratings.

App Information

RpnCalc Financial Calculator costs $4.99. The app size is 1.42 MB. The latest version available is 3.0. The last update was on December 5, 2022.

Technical Requirements

RpnCalc Financial Calculator requires Android 1.6+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since December 2016.

App Performance Report

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Developer information for Edward Falk

Edward Falk

efalk@users.sourceforge.net

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Frequently asked questions about RpnCalc Financial Calculator

Is RpnCalc Financial Calculator free?

No. RpnCalc Financial Calculator costs $4.99 on Google Play.

Is RpnCalc Financial Calculator still available?

Yes. RpnCalc Financial Calculator is on Google Play, and the last update we saw was on December 5, 2022.

Does RpnCalc Financial Calculator contain ads?

No. Google Play does not list RpnCalc Financial Calculator as containing ads.

What Android version does RpnCalc Financial Calculator require?

RpnCalc Financial Calculator runs on Android 1.6 and higher.

How large is RpnCalc Financial Calculator?

RpnCalc Financial Calculator is 1.42 MB.

Is RpnCalc Financial Calculator suitable for children?

Google Play rates the content of RpnCalc Financial Calculator as suitable for everyone.

How many times has RpnCalc Financial Calculator been installed?

Google Play lists 1,000+ installs for RpnCalc Financial Calculator.

How do people rate RpnCalc Financial Calculator?

RpnCalc Financial Calculator scores 4.68 out of 5 stars, from 170 ratings on Google Play.

Who made RpnCalc Financial Calculator?

RpnCalc Financial Calculator was developed by Edward Falk. It is listed in the finance category on Google Play.

What are the best alternatives to RpnCalc Financial Calculator?

People looking at RpnCalc Financial Calculator also look at these finance apps: TVM Financial Calculator, Financial Calculators, Financial Calculators, Financial Calculators Pro, Financial Calculator FincCalc.

Share RpnCalc Financial Calculator

Store listing

By Edward Falk, from Google Play

“The best financial calculator on the market. All the classic features and more.”

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Screenshots by Edward Falk, from the Google Play listing
Description by Edward Falk Written by the developer, not by AppBrain. Click to read.
RpnCalc Financial is the oldest top-rated financial calculator on the Android Market.

It has an interface that users of conventional financial calculators will be completely at home with, but does much more. Calculations are far faster, doing in a fraction of a second what the classic calculator could take minutes to compute.

RpnCalc Financial is a highly versatile full-function programmable financial calculator. It includes math, finance, and statistics functions.

Features include:

* Time value of money (TVM)
* Amortization
* Cash flow analysis: IRR, NPV
* Bond pricing
* Date and interest calculations
* Percentages, markups, percentage of total
* Scientific mode
* Basic (large key) mode
* 20 Memories
* 99 Program steps
* Key click (haptic feedback)
* Continouous memory

Improvements over the classic calculator:

* 16-level stack
* Front four stack elements displayed
* Programs can be saved and restored
* Programs displayed symbolically
* Memories are not sacrificed to make room for program steps

RpnCalc Financial has a sixteen-level stack to hold more data. The front four elements on the stack are visible at all times, making it much easier to keep track of where you are in your calculations.

Calculator programs are stored and displayed symbolicly, making programming much easier. Progams can be stored and retrieved from the sdcard whenever your Android is in file-sharing mode.

See http://www.efalk.org/RpnCalcFinancial for a full description.

If you want to "test drive" a similar calculator before purchasing, try the free "RpnCalc" scientific calculator.
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