Pocket Lux Meter
Satnam Singh
Utilities
'Pocket Lux Meter' turns your iPhone or iPad into a professional and easy-to-use light meter.
$1.49
Finding alternatives to
GO-21 SciRPN
Calculate using RPN and stack registers
by Stephen Lidie
Top 20 Alternatives
Curated apps similar to GO-21 SciRPN, ranked by relevance and user ratings.
Polar Scope Align Pro Watch
Dimitrios Kechagias
Utilities
Apart from the most reliable app for polar alignment (with or without a polar scope), PS Align pro has become the astronomer's swiss-army knife with all the tools added over the years.
$4.99
Digits Basic Tape Calculator
Shift
Utilities
We're human. We're busy. We make mistakes. So we designed a calculator for humans, from the ground up. Digits combines the editability of a spreadsheet with the simplicity of a calculator.
Free
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#4 
Calculator HD for iPad.
Calculate, switch, and share results
良峰 侯
UtilitiesPerform calculations with basic and scientific modes. Switch between portrait and landscape views. Display calculation steps and use a voice-activated . Customize keyboard layout and choose from two skins.
Free -
#5 
Repeater- MP3 Audio Player
海云 吴
UtilitiesThe Simple Repeater is committed to creating the best audio player and is an easy-to-use English reading software that makes learning more efficient and easier! Added recording function for learning anytime and anywhere. Added subtitle editing function, supports automatic sentence breaking, and...
Free -
#6 
PIP Compass LT
Navigate with , flashlight, and map
William Silner
UtilitiesUse the built-in to navigate. Access an angle finder, flashlight, and map. View landscape and cosplay modes. Upgrade to remove ads and use improved Apple Maps.
Free -
#7 
Calcy - Calculator App
Vitalii Gryniuk
UtilitiesCalcy - Calculator for iPad and iPhone. You can look up and easy use previous calculations.
Free -
#8 
HP-35
Enrique Haro
UtilitiesThe classic Hewlett Packard RPN (Reverse Polish Notation) calculators. - HP-35, HP-45. First pocket scientific calculators (1972). HP-21. 2nd gen of the HP-35 (1975) - ЭЛЕКТРОНИКА MK 61. Soviet RPN Calculator (USSR - Ukraine) late 70's
Free -
#9 
Construction Calculator Pro #1
ORYX AI INFORMATION TECHNOLOGY - FZCO
UtilitiesConstruction Calculator Pro #1 The Smartest Tool for Builders, Contractors, and Tradespeople Whether you’re framing a roof, estimating materials, or laying out stairs, Construction Calculator Pro #1 gives you the precision, speed, and reliability you need on the job.
Free -
#10 
SNRGY
SNRGY Studios AB
UtilitiesWith a simple and minimalistic design this app provides easy navigation and control of our LED products, most notably "The GLORB". Features: - Connect automatically to GLORBs - Customize animations and color palettes - Turn on audio reactivity on animations to use the built in microphone - Save...
Free -
#11 
Hidden & Secret Device Scan
Detect devices with a tap
GIOVANNI AMBROSI
UtilitiesDetect electronic devices with advanced scanning technology. Identify connected gadgets, including concealed cameras, by tapping a button. Locate unknown devices on your network and check for unauthorized connections.
Free -
#12 
Calculator+ : Hide your secret
Vadim Suprovici
UtilitiesAt last, you can get a really secret place on your device! This app is not impersonating! Also, you can not worry about that you forget your password, at any time you can use password reset system! If you want to hide something - you have chosen the right app! The most important functions: 1) The...
$0.99 -
#13 
dooplicator
Store digital keys securely and access them
Dooplicator Special Technologies Inc.
UtilitiesCreate a digital backup of your key for easy access. Store key details securely. Share the backup with trusted contacts. Access the key remotely without needing physical programming.
Free -
#14 
Omega Calculator
Joseph Rupertus
UtilitiesWelcome to Omega Calculator, a beautiful and intuitive calculator for your iPhone and iPad. It’s both familiar and powerful. A full-blown scientific calculator when you need it, and a simple arithmetic device when you don’t.
Free -
#15 
GraphCalcPro2Go
Calculate with precision and advanced functions
Starware Software LLC
UtilitiesAllows users to perform advanced scientific calculations with high precision and range. It supports standard and RPN input modes, built-in constants, and unit conversions. iCloud sync enables cross-device access to calculation history.
Free -
#16 
Tank Measure: Volume Calc
Vladislav Zhirnov
UtilitiesWelcome to the new and improved Precision Tank Volume Calculator - the ultimate solution for volume calculation for an even broader variety of tank shapes.
Free -
#17 
Transformer Calculator.
Calculate currents and determine type
V PUGAZHENTHI
UtilitiesCalculate primary and secondary full-load currents based on ratings and voltages. Determine turns ratio and type. Input phase type and voltage values to obtain current outputs and ratio calculations.
Free -
#18 
SciCalc82
Calculate with retro-style precision
Paul SALANITRI
UtilitiesA vintage-style scientific calculator with a retro LCD display and realistic key sounds. Perform basic and advanced calculations, use shift functions, and access additional modern features like parentheses and memory storage.
Free -
#19 
Notan
Track grades, set goals, and stay organized
Tien Do Nam
UtilitiesTrack grades across subjects, semesters, and assignment types. View visual analytics to identify trends and areas for improvement. Set goals and receive progress updates. Sync data across devices and export reports.
Free -
#20 
Statistics Calculator+++
Calculate statistical values and test hypotheses
Behzad Dogahe
UtilitiesCalculator+++ allows users to input data via Add X, Add Y, and Add f buttons. Perform statistical analysis, regression, probability distributions, confidence intervals, and hypothesis tests. View results directly without needing a manual.
$9.99
App information from Apple App Store. GO-21 SciRPN and related trademarks belong to Stephen Lidie.