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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.

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😊(2.3K 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

Unit and Currency Converter: Access a comprehensive unit conversion tool featuring a wide range of currencies and units across various categories. Perform calculations with calculators for everyday needs, edit templates, and download user-contributed templates. Keep up-to-date with automatic currency exchange rate updates every 6 hours.

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 Willy Kunz

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 the world's first pocket computer, a revolutionary programmable calculator from 1974, now on your iPhone. With this app, you can run original HP programs, create and organize virtual cards, and share data, all in four customizable modes to suit your needs.

Converter Plus [paid]#3

Converter Plus [paid] by TranCreative Software

Unit and Currency Converter
Worth Considering
🔧 Utilities
4.7😊(196 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

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 application is a photo-realistic simulation of a classic Hewlett-Packard calculator, featuring a 100-hr digital timer, programmable functions, and advanced mathematical operations. Experience the nostalgic look-and-feel of the original calculator, with added extended features and sharing capabilities, and try it out today!

📊 Productivity
(8)
5
RPN-25 CE
RPN-25 CE
RPN-25 CE
Highly popular 1975 calculator
$2.99

This highly popular scientific calculator simulation brings back the functionality of a 1975 model, with a photo-realistic design and a range of extensions that make it more powerful. It offers advanced features such as programmability, conditional loops, and branching, along with a library of pre-installed programs and various sharing options, making it a versatile tool for calculations and programming.

🔧 Utilities
(9)
6
RPN-67 SD
RPN-67 SD
RPN-67 SD
Vintage Programmable Calc
$3.99

Experience the nostalgia of a 1970s programmable calculator on your iPhone, with a vintage-inspired app that simulates the legendary HP-67, allowing you to run thousands of programs with ease and speed. With advanced features and compatibility with original programs, you can unlock the full potential of this retro calculator and start exploring now.

🔧 Utilities
(16)
7
RPN-32 CE
RPN-32 CE
RPN-32 CE
Great classic calculator
$1.99

This classic calculator simulator offers a photo-realistic experience with advanced features, including programmability, extensive mathematical functions, and sharing capabilities. With its user-friendly interface and numerous functions, it's an ideal tool for those seeking a reliable and versatile calculator - try it out today!

📊 Productivity
(8)
8
RPN-34 CE
RPN-34 CE
RPN-34 CE
Legendary classic calculator
$1.99

This photo-realistic calculator simulation brings back the legendary HP-34C, with its iconic design and functionality, while also introducing modern extensions and improvements for a seamless user experience. With a wide range of advanced calculator functions, programmability, and sharing capabilities, users can enjoy a versatile and efficient calculation tool - try it out today!

📊 Productivity
(13)

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