1. Home
  2. Topics
  3. Programmable Calculator Software

Best Programmable Calculator Software Apps

11+ iOS apps curated and reviewed

4.8 avg rating
1 free apps
Updated June 2026

If you already know Converter+ (Units, Currencies), this is the deeper bench. 11+ programmable calculator software apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of June 2026.

Compare top Programmable Calculator Software Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Converter+ (Units, Currencies)Converter+ (Units, Currencies)Free4.7★ (2.4K)NoYesAug 2026
2RPN-65 SDRPN-65 SD$2.995.0★ (8)NoNoAug 2026
3Converter Plus [paid]Converter Plus [paid]$1.994.7★ (200)NoNoAug 2026
4RPN-55 SDRPN-55 SD$1.995.0★ (8)NoNoJun 2026
5RPN-25 CERPN-25 CE$2.994.6★ (9)NoNoAug 2026
6RPN-67 SDRPN-67 SD$3.994.6★ (17)NoNoAug 2026
7RPN-32 CERPN-32 CE$1.995.0★ (9)NoNoAug 2026
8RPN-34 CERPN-34 CE$1.995.0★ (14)NoNoAug 2026

Top Picks for Programmable Calculator Software

Converter+ (Units, Currencies)#1

Converter+ (Units, Currencies) by TranCreative Software

Unit and Currency Converter
Editor's Choice
📊 Productivity
4.7😊(2.4K ratings)
FreeIn-App Purchases
Converter+ (Units, Currencies) screenshot 1
Converter+ (Units, Currencies) screenshot 2
Converter+ (Units, Currencies) screenshot 3
Converter+ (Units, Currencies) screenshot 4
Converter+ (Units, Currencies) screenshot 5

This app offers a comprehensive unit and currency converter with a vast array of categories and calculators for everyday needs. It allows users to customize templates, download shared ones, and provides automatic exchange rate updates for 167 world currencies.

What We Love

  • 🚀 Excellent converter
  • 👍 Customizable and easy to use
  • 🚀 Comprehensive and versatile
  • 👍 Simple and intuitive interface

Room to Improve

  • 🐛 Currency conversion rates not up-to-date
  • 🐛 Clipboard data access concerns
  • 🐛 Ads can be intrusive
RPN-65 SD#2

RPN-65 SD by CuVee Software

First programmable calculator!
Strong Contender
📊 Productivity
5.0(8 ratings)
$2.99
RPN-65 SD screenshot 1
RPN-65 SD screenshot 2
RPN-65 SD screenshot 3
RPN-65 SD screenshot 4
RPN-65 SD screenshot 5
RPN-65 SD screenshot 6

Experience a faithful simulation of the groundbreaking HP-65 programmable calculator on your iPhone. This app offers virtual program and data cards, a paper tape printer, and a robust card manager. Explore four distinct operating modes, including an enhanced "Super-65" option.

Converter Plus [paid]#3

Converter Plus [paid] by TranCreative Software

Unit and Currency Converter
Worth Considering
🔧 Utilities
4.7😊(200 ratings)
$1.99
Converter Plus [paid] screenshot 1
Converter Plus [paid] screenshot 2
Converter Plus [paid] screenshot 3
Converter Plus [paid] screenshot 4
Converter Plus [paid] screenshot 5

This app offers a comprehensive unit and currency converter with a vast array of categories and calculators for everyday financial and scientific needs. It allows users to customize templates, download shared ones, and automatically refreshes currency exchange rates.

What We Love

  • 👍 Easy to use
  • 🚀 Comprehensive conversions
  • 💡 Customizable templates
  • 🔍 Helpful for travel and daily life

Room to Improve

  • 🐛 Currency rates not updating
  • 🐛 Formulas not visible during editing
  • 🔍 Lack of developer support and updates

More Programmable Calculator Software apps to explore

4
RPN-55 SD
RPN-55 SD
RPN-55 SD
Classic HP Calculator w/Timer
$1.99

This app is a photo-realistic simulation of a classic Hewlett-Packard programmable scientific calculator from the 1970s. It includes a 100-hour digital timer, clock functions, and original HP programs.

Photo-realistic look-and-feelProgrammable with conditional branching100-hr timer and 12/24-hr clock
📊 Productivity
(8)
paid
5
RPN-25 CE
RPN-25 CE
RPN-25 CE
Highly popular 1975 calculator
$2.99

This app is a photo-realistic simulation of the classic HP-25 scientific calculator. It offers advanced programming features, a vast function library, and modern enhancements for enhanced usability on iOS devices.

Photo-realistic simulationProgrammable (99/999 steps)15 user-defined function keys
🔧 Utilities
(9)
paid
6
RPN-67 SD
RPN-67 SD
RPN-67 SD
Vintage Programmable Calc
$3.99

This app simulates a vintage programmable calculator from the mid-70s, offering enhanced features beyond the original. It allows users to run existing programs, manage virtual cards, and utilize advanced functions for scientific and engineering tasks.

Virtual program and data cardsVirtual paper tape printerDatabase-driven card manager
🔧 Utilities
(17)
paid
7
RPN-32 CE
RPN-32 CE
RPN-32 CE
Great classic calculator
$1.99

This app is a photo-realistic simulation of a classic scientific calculator, offering advanced programming capabilities beyond the original model. It includes a comprehensive set of mathematical functions and features for easy program management and sharing.

Photo-realistic calculator simulationFully programmable with 99 stepsExtensive scientific and statistical functions
📊 Productivity
(9)
paid
8
RPN-34 CE
RPN-34 CE
RPN-34 CE
Legendary classic calculator
$1.99

This app simulates a legendary scientific calculator, offering photo-realistic visuals and advanced functions like integration and root finding. It includes built-in programs and extensions for enhanced usability, making it a powerful tool for complex calculations.

Photo-realistic look-and-feelProgrammable with 999 stepsIntegration and root solving
📊 Productivity
(14)
paid

FAQ about Programmable Calculator Software

What are the best programmable calculator software apps for iPhone?
Converter+ (Units, Currencies) tops our programmable calculator software apps ranking as of June 2026, with a 4.7-star average from 2.4K App Store ratings, and it's free to download.
Yes — 1 of the top programmable calculator software apps we rank are free to download, including Converter+ (Units, Currencies).
Converter+ (Units, Currencies) has no ads and offers in-app purchases, according to its App Store listing as of June 2026.
We track 11+ programmable calculator software apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
Converter+ is a versatile application that functions as a unit converter and currency converter. It includes a wide range of categories for units and supports 167 world currencies with automatic exchange rate updates. Additionally, it offers various built-in calculators for common financial and everyday problems.
Key features include converting multiple units or currencies simultaneously, support for compound units, a full text search function, a built-in standard calculator, and a favorite list. Users can also edit existing templates, create their own, and download templates shared by others.