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Android Apps > Education > Ultimate Calculator
Ultimate Calculator icon

Ultimate Calculator

by AppDevGenie · Education · $0.99
On Google Play since December 2017 · Data updated 2026-10-07
Google Play

Ultimate Calculator is made and published by AppDevGenie. AppBrain is an independent app data site and isn't affiliated with AppDevGenie. The app name, icon, screenshots and description belong to AppDevGenie and are shown as published on Google Play.

AppBrain's verdict

EstablishedNiche
Total installs
980
Rating on Google Play
4.70
39 ratings
Last updated
December 21, 2025

Ultimate Calculator is a niche app, with 980 installs. It doesn't have enough ratings yet to judge what users think.

Summary

Ultimate Calculator by AppDevGenie offers a comprehensive electronics toolkit with 157 calculators, conversions, reference tables, and pinouts, plus a basic pocket calculator. Downloads reach 500+ in total with 5 in the last 30 days.

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

Installs

Tracked by AppBrain
Last 30 days
5
Play install range
500+
Launched
December 2017

Installs over time

Ultimate Calculator has been installed 980 times. Over the past 30 days, it has been installed 5 times.

Rankings

Google Play top charts

Google Play Rankings for Ultimate Calculator

This app is not ranked

Competitors

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Releases

Updates seen on Google Play
Version
1.6
Launched
December 2017
  • Dec 21, 2025UpdateVersion 1.6
  • Nov 23, 2025UpdateVersion 1.5.1
  • Oct 8, 2022UpdateVersion 1.5.0
  • Feb 4, 2022Installs500+ installs
  • Aug 27, 2020UpdateVersion 1.4.1
Show all changes Show fewer

User feedback

Ratings and reviews on Google Play

Google Play Rating history and histogram

27
11
0
0
0

Comments on Ultimate Calculator for Android

★★★★★ Mel Jones · Dec 7, 2018
This is the coolest calculator I've ever used. I only wish this technology and this calculator was available when I was taking Electronics and Engineering. The only thing I would like see added is the Darlington Pair.
★★★★☆ 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.
★★★★☆ 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!
★★★★★ Irian MonBel · Feb 12, 2018
Awesome calculator. It has absolutely everything (and more!) a hobbyist electronic and Arduino user can need.

Technology

Found in the app by AppBrain
Ads
No ads
Price
$0.99
Libraries
14
App size
7.81 MB
Needs Android
4.0.3+
Content rating
Everyone

Technologies used by Ultimate Calculator

1 permissions · 14 libraries
Subscribe to see full permission and library details
Trust & Safety: Single dynamic permission: DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION. No sensitive permissions indicated; built with standard Android components and libraries.

About the app and developer

About Ultimate Calculator

Ultimate Calculator is an education app developed by AppDevGenie.

Install Statistics

Ultimate Calculator has been installed 980 times. In the last 30 days, the app was installed 5 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. The app 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 since December 2017.

App Performance Report

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Developer information for AppDevGenie

AppDevGenie

appdevgenie@gmail.com

Legal name:

Address:

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Frequently asked questions about Ultimate Calculator

Is Ultimate Calculator free?

No. Ultimate Calculator costs $0.99 on Google Play.

Is Ultimate Calculator still available?

Yes. Ultimate Calculator is on Google Play, and the last update we saw was on December 21, 2025.

Does Ultimate Calculator contain ads?

No. Google Play does not list Ultimate Calculator as containing ads.

What Android version does Ultimate Calculator require?

Ultimate Calculator runs on Android 4.0.3 and higher.

How large is Ultimate Calculator?

Ultimate Calculator is 7.81 MB.

Is Ultimate Calculator suitable for children?

Google Play rates the content of Ultimate Calculator as suitable for everyone.

How many times has Ultimate Calculator been installed?

Google Play lists 500+ installs for Ultimate Calculator.

How do people rate Ultimate Calculator?

Ultimate Calculator scores 4.70 out of 5 stars, from 39 ratings on Google Play.

Who made Ultimate Calculator?

Ultimate Calculator was developed by AppDevGenie. It is listed in the education category on Google Play.

What are the best alternatives to Ultimate Calculator?

People looking at Ultimate Calculator also look at these education apps: ElectroCalc PRO, Electronics Tools & Calculator, Electronics Toolbox Pro, Calculator App - Electronics, Electrodoc Pro.

Share Ultimate Calculator

Store listing

By AppDevGenie, from Google Play

“Comprehensive collection of electronics calculators, tools and reference tables.”

Ultimate Calculator Screenshot 1 of 9
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Ultimate Calculator Screenshot 7 of 9
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Ultimate Calculator Screenshot 9 of 9
Screenshots by AppDevGenie, from the Google Play listing
Description by AppDevGenie Written by the developer, not by AppBrain. Click to read.
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

Amplification:
• Slew Rate
• Gain | Ratio
• Non-Inverting Amplifier
• Inverting Amplifier
• Differential Amplifier
• Inverting Summing Amplifier

Filters:
• RC filter – passive
• LC filter – passive
• RL filter – passive




Semiconductors:
• Series Circuits
• Parallel Circuits
• Capacitors
• Inductors
• Diodes
• 555 Timer
• Air Core Inductors
• LM 3914 Display driver
• LM 3915/6 Display driver

Identification:
• Resistor – color codes
• Inductor – color codes
• Capacitor – printed
• Fuse, glass – color codes
• Diodes
• 7-Segment display

Physics:
• Coulomb`s Law
• Magnetism
• Joules Law – heating
• Electrical energy

Geometry:
• Area (rectangle, triangle, circle, trapezoid, ellipse, square, parallelogram, sector)
• Surface area (cylinder, sphere, cube, cone)
• Volume (rectangle, cylinder, sphere)

Radiation:
• Electromagnetic wave (wavelength, frequency, period)
• Propagation delay (distance vs. time)
• Resonance (frequency, inductance, capacitance)
• Radiated power (vs. VSWR)
• Air core inductors (inductance, turns)

RF Link:
• Free space path loss (loss, distance)
• Link budget (RSSI, fade margin)
• Fresnel zone (1st, max, 60%, Er)

RF Base Station:
• Transmission line (Tx, Att, Pout)
• EIRP ERP (effective radiated power)
• Antenna down-tilt – angle (angle, distance)
• Antenna down-tilt – coverage (inner & outer radius)



Radar:
• Power density (W/m²)
• Maximum range (distance)



Losses:
• Attenuators (Pi, Tee)
• VSWR (voltage standing wave ratio)
• Reflection coefficient (Rho)
• Return loss (dB)
• Mismatch loss (dB)

Converters:

• 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

• Microcontroller
 Atmega 8 - DIP
 Atmega 8 - MLF
 Atmega 8 - TQFP
 Atmega 328 - DIP
 Atmega 328 - TQFP
 Atmega 328 - MLF
 Atmega 2560
 Atmega 8u2 - QFN
 Atmega 8u2 - TQFP
 Atmega 16u2 - QFN
 Atmega 16u2 - TQFP
 Atmega 32u2 - QFN
 Atmega 32u2 - TQFP

• Miscellaneous
 OBD II
 Memory card – SD
 Memory card – mini SD
 Memory card – micro SD
Official page on Google Play
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