Comprehensive collection of electronics calculators, tools and reference tables.
Pros & Cons
Extensive electronics toolkit with 157 calculators, conversions and reference tables
Pinout references for common components
Pocket calculator plus advanced tools for engineers and students
Uses modern Android tech stack (Kotlin, AndroidX) for reliability
Lacks Arduino/Raspberry Pi specific calculators and references that some competitors offer
Not listed in top charts, which may affect discoverability
Limited emphasis on broad converter or circuit-design features compared to some rivals
About Ultimate Calculator
Ultimate Calculator is an education app developed by AppDevGenie.
Download Statistics
Ultimate Calculator has been downloaded 970 times. In the last 30 days, the app was downloaded 1 times.
User Ratings
Ultimate Calculator is rated 4.70 out of 5 stars. The rating is based on 39 ratings.
App Information
Ultimate Calculator costs $0.99 to download. The APK download size is 7.81 MB. The latest version available is 1.6. The last update was on December 21, 2025.
Technical Requirements
Ultimate Calculator requires Android 4.0.3+ or higher. The app has a content rating of Everyone. The app has been available on Google Play December 2017.
Description
Only available in English.
Comprehensive collection of electronics calculators, tools and reference tables.
Ultimate Calculator Pro is a utility application consisting of 157 calculators, conversions, reference tables, pin outs; and a basic pocket calculator.
Calculators:
DC Circuits: • Ohm`s Law • Voltage divider - resistive • LED resistor • RL transient circuits • RC transient circuits • Wheatstone bridge • Battery life
AC Circuits: • Reactance • Impedance • Star Delta Transformation • AC Power • Voltage divider - capacitive
Power Supply: • Transformer ratios • Rectifiers • Capacitor filter • Transformer efficiency • Voltage regulator - LM317 • Voltage regulator - Zener diode
• Angle • Area • Cooking • Current (RF) • Distance | Length • Energy • Field strength (RF) • Fuel consumption • Mass • Number base • Power • Power (RF) • Pressure • Si units • Sine wave • Speed • Storage • Temperature • Terminated (RF) • Time • Torque • Voltage (RF) • Volume
Reference: • SI unit prefixes • Logic gates • 74xx ic • ASCII • Abbreviations • Schematic symbols • Ingress protection • Decibel suffixes • RF Spectrum • Amateur band plan – IARU region 1 • Amateur Q codes • Phonetic alphabet (NATO) • IT Acronyms • Units of measure
Pin out: • Audio/video RCA connector Jack - TS Jack - TRS Jack – TRRS Jack – TRS color codes SCART VGA DIN DVI DVI mini DVI types HDMI type A
• Computer USB - type A and B USB - mini and micro Serial - DE9 Serial - DB25 PS2 AT keyboard SATA – data SATA – power Molex – atx power Molex – power USB-C
• Gaming Game/MIDI port
• Boards • Raspberry Pi – GPIO • Arduino UNO
• Components • Led – 2 pin • Led – RGB • Regulator – 78xx/79xx • Regulator – LM317 Display – LED 7 segment Display - LCD 16 x 2 (1602) Display - LCD 16 x 4 (1604) Display driver – LM391x Transistor – TO-92
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Great tool for the serious ham radio operator or rf/electronics engineer. Would like to see a light theme though because environment light.
★★★★★Irian MonBel· Feb 12, 2018
Awesome calculator. It has absolutely everything (and more!) a hobbyist electronic and Arduino user can need.
★★★★☆Duane Matthes· Jan 19, 2026
Almost perfect. I would have given five stars if the calculator portion of the app had a little bit more functionality for mathematics. It needs a few more scientific functions to be truly useful for most engineering calculations. Why no radical key? Otherwise, the app is flawless, and should honestly cost a lot more than what I paid for it. Good stuff all around. Buy it!
★★★★☆A Google user· Oct 3, 2018
Love the App, Great developer, just need more conversions support adding like weight's, fluids, etc., there's also a few niggley bugs about like formulation calculation interaction buttons appear to swap designations as you enter your sum choices, that then fail to reinstate themselves back to their correct default states after your finished sum when hit clear button. I've found these across different parts of the calculator overall, but I have not done a detailed itinerary of them.
★★☆☆☆Andrew Tasidjawa· Jan 19, 2019
I'm using homophone, when I select search, favorite, DC circuit and reference the app is off/exit. Please fix it.
Google Play Rankings for Ultimate Calculator
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Technologies used by Ultimate Calculator
1 permissions·14 libraries
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