Curated apps similar to RPN-97 Pro, ranked by relevance and user ratings.
Tydlig Software AB
Utilities
Calculators have changed very little since the 1970s - while phones from that era look ancient. Why should calculators cling to a 40 year old design with a wall of buttons and one row for results in the age of retina displays? We deserve something better.
Cider Software LLC
Utilities
A modern calculator with extensive customization and powerful features. Design it exactly how you want it. Used by millions.
Record calculations, edit steps, check results
Beijing four time ledo Technology Co., Ltd.
Utilities
Simplify calculations with a clean interface showing equations and results simultaneously. Record and edit operations. Access scientific functions. Choose from multiple themes. Subscribe for quarterly membership at ￥18.
Panoramic Software Inc.
Utilities***** THE TOP CALCULATOR FOR IPAD ***** Calc Pro HD combines 10 powerful calculators with 10 financial worksheets! You Will Never Need Another Calculator App Again With Calc Pro HD "4.5/5 Stars" - AppAdvice Take advantage of the improved workflow in either Landscape or Portrait! Calc Pro HD is...
祥祎 刘
UtilitiesCalculator - optimized for iPad & iOS 9, standard, simple and reliable! FEATURES: standard calculator app optimized for iPad & iOS 9 optimised for high resolution screen charming piano sound NO annoying popups ads!
CAT VIET SOFTWARE DEVELOPMENT & MEDIA JSC
Utilities+ 800+ formulas in Formula Toolkit In-App + OVER 1 MILLION DOWNLOADS WORLDWIDE + Award Winning Calculator Since 2007 HiCalc Pro is an ultimate calculator and will make all your calculations become simpler than ever with 12 calculators: Basic, Scientific, Currency Converter, Unit Converter,...
良峰 侯
Utilities- Live voice calculator - Ergonomic key layout - Extra large "+" key - Backspace key - Nice Key sound - Usage Record - Copy & Send the result by e-mail - Retina display (all iPad & iPhone) - Support Dark Mode Calculator Easy HD URL scheme: HCCalculatorEasy://
Horizon Business, Inc.
UtilitiesCalculator-- is a simple calculator that is easy to use and read. Select the desired background and display. If you like this app, please consider giving it a rating. Your support will help keep the updates coming! Thank you for your support!
Calculated Industries, Inc.
Utilities"Love this app makes my job much easier." - Danny O'Dea Thank you for your calculator suggestions.
TLA Systems Ltd.
UtilitiesPCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody looking for a feature rich calculator.
DigitAlchemy LLC
UtilitiesThe world’s favorite calculator app, with more than 40 million downloads worldwide.
Calculate, edit, and track entries
SuperDG Inc.
UtilitiesA with simple arithmetic functions. Displays calculation history. Shows current input. Features intuitive design and universal compatibility. No additional features or complex calculations included.
Ofly Tech Co., Ltd.
Utilities*** Free & Prefect*** FP Calculator is a calculator designed for iPhone and iPad that includes basic calculations, arithmetic equations, currency conversions, and unit conversion functions.
Willy Kunz
UtilitiesA dream calculator of the mid-70's, priced at $2,500 in today's dollars (2025), right on your iPhone! RPN-67 SD is the iPhone version of RPN-67 Pro, the first complete simulation of Hewlett-Packard's legendary HP-67 programmable calculator for the iPad.
Tom Kerrigan
UtilitiesRPN Calculator 48 is a polished RPN replacement for Apple's calculator app: - Same scientific functionality as Apple's calculator app* - Use swipe gestures to undo and redo operations! - Starts quickly - Large buttons - Easy-to-read display - 100 entry stack - 6 memory buttons (A-F) - 50+ levels...
Vicinno Soft LLC
Utilities11C Scientific Calculator is the most accurate and precise emulator of the HP 11C RPN scientific programmable calculator available for iPhone and iPod touch.
Panoramic Software Inc.
Utilities10 powerful calculators with 10 financial worksheets for your iPhone! "Calc Pro Claims To Be The Top Mobile Calculator Because It Is." AppAdvice Experience the ultimate mobile calculator now on your iPhone and iPhone Pro! Join the millions of satisfied users worldwide who trust Calc Pro for its...
Greg Hewgill
UtilitiesStudents and scientists from the 1980s will remember the classic RPN scientific calculators.
Calculate with color and precision
Cider Software LLC
UtilitiesCalculate with a dual-line display showing input and result simultaneously. Use percentage and backspace functions. Choose from 18 color themes. Enter multi-line equations. Automatically format scientific expressions. Access via Split View.
Panoramic Software Inc.
Utilities***** THE TOP CALCULATOR FOR IPAD ***** 10 powerful calculators with 10 financial worksheets! You Will Never Need Another Calculator App Again With Calc Pro HD "4.5/5 Stars" - AppAdvice Take advantage of the improved workflow in either Landscape or Portrait! Calc Pro HD is the trusted choice by...
App information from Apple App Store. RPN-97 Pro and related trademarks belong to Willy Kunz.