Calculate using RPN and stack registers
by Stephen Lidie
Curated apps similar to GO-21 SciRPN, ranked by relevance and user ratings.
Calculate, edit, and track expressions
晖明 甘
Utilities
Advanced calculator with basic, scientific, and editable input features. View calculation history and use a widget for quick access.
Richard Silverman
Utilities
Paper Calc Office is an easy to use, large key, 4-function calculator tailored for the office environment.
Netviking AB
Utilities
This is a super simple scientific calculator with large buttons. It supports addition, subtraction, multiplication and division.
CAT VIET SOFTWARE DEVELOPMENT & MEDIA JSC
Utilities+ OVER 1 MILLION DOWNLOADS WORLDWIDE + Award Winning Calculator Since 2007 + 800+ formulas in Formula Toolkit In-App HiCalc - Calculator for iPad will make all your calculations become simpler than ever. ► Scientific calculator: sin, cos, tan, deg/rad/grad, Pi, sin-1, cos-1, tan-1, sinh, cosh,...
Generate passwords on demand
Maarten Billemont
UtilitiesGenerate secure passwords on demand without storing or transmitting them. Create custom passwords with specified length and character types. View generated passwords temporarily and dismiss them instantly.
Stan Corbin
UtilitiesThis scientific calculator uses Reverse Polish Notation (RPN), similar to most HP calculators produced since 1972. RPN is more efficient for complex calculations. Unlike many RPN calculators, the No Equal calculator always shows the stack.
Calculate bills, balance budgets, check homework
Md Milon Hossain
UtilitiesCalculate expenses, split bills, and track budgets with a clean interface. Input numbers directly or use pre-set formulas. View detailed breakdowns and export results. Sync data across devices for consistent access.
Marek Zima
UtilitiesEmu50G is an emulator for the famous HP50g scientific calculator with its original skin. Carry your favorite calculator along with you every day and use it together with your favorite library! Features: -------- • Full emulation of the HP50g calculator.
Calculate with fractions and units
Cyberprodigy LLC
Utilities™ allows users to perform fraction calculations and convert between decimals and fractions. It supports degree, minute, and second conversions. Users can handle unit conversions and calculations with dimensional units.
Calculate, edit, and correct numbers
Edison Largo
UtilitiesPerform calculations with decimal points or commas. Correct entries using a backspace key. View calculation history in a display log. Switch between light and dark themes. Receive regular updates with new features.
江峰 赵
Utilities吉真紫微斗数，为专业爱好者打造的一款高效、实用的易学工具。姓名出生数据将安全地存储在云端，随时随地访问和更新。
PAI STUDIO, OOO
UtilitiesPerfect calculator for your iPad. Completely free and ad-free. We designed an advanced scientific calculator with ease of use in mind for your convenience. Use it for study, work, and everyday tasks. Nothing is extra, and there are no imposed functions - it's the calculator everyone is used to.
AppNextDoor Labs
UtilitiesThis PPI calculator (pixels per inch calculator) finds the resolution of your display based on its dimensions and the pixel count. In this app, we will teach you what is PPI, explore the differences between PPI vs DPI through the DPI definition.
HigherGroundsTech LLC
UtilitiesRealCalculator: Your AI-Powered Study Companion RealCalculator is more than a calculator—it’s an AI-driven study partner that delivers step-by-step solutions in Math, Biology, Physics, Chemistry, Nursing, Economics, History, and more.
Check tickets, find winners, track jackpots
Nappkin LLC
UtilitiesScan tickets for Powerball, Mega Millions, and state lotteries. View real-time results and jackpot amounts. Check winning numbers and track status. Receive updates on upcoming draws and official results.
shazino
UtilitiesLaboratory Timer is an easy-to-use countdown timer designed to run multiple alarm timers for laboratory at once. With Laboratory Timer’s gorgeous interface and user friendly navigation, it has never been easier to manage scientific experiments. You can also use your Apple Watch to visualize all...
Convert numbers between bases, calculate, and get
Mikhail Razin
UtilitiesConvert numbers between bases 2 to 30 with real-time updates. Perform calculations in multiple number systems. Display results accurately with a clean, intuitive interface. Switch between bases instantly for precise outputs.
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.
Albert Parti
UtilitiesCalculator Pro & Currency Support for iPad Pro Dual-window split view. Calculation results display (In-App purchase) The numbers entered one by one to delete. The display Swipe Gesture right.
Roman Kolesnichenko
UtilitiesMoonshiner's calculator - fractional distillation, dilution and mixing with contraction, drip rate measuring, hydrometer correction. - Privacy Policy: http://rexdev.ru/SamStation/pp.html Terms and Conditions: http://rexdev.ru/SamStation/ua.html
App information from Apple App Store. GO-21 SciRPN and related trademarks belong to Stephen Lidie.