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Android Apps > Tools > Electronics Toolbox Pro
Electronics Toolbox Pro icon

Electronics Toolbox Pro

by Peter Ho · Tools · $1.99
On Google Play since January 2014 · Data updated 2026-10-21
Google Play

Electronics Toolbox Pro is made and published by Peter Ho. AppBrain is an independent app data site and isn't affiliated with Peter Ho. The app name, icon, screenshots and description belong to Peter Ho and are shown as published on Google Play.

AppBrain's verdict

EstablishedNicheLoved by users
Rating on Google Play
4.77
185 ratings
Installs
3 thousand
Last updated
October 12, 2026
Ads
No ads
Size
34.1 MB

Electronics Toolbox Pro is a niche app, with 3 thousand installs. Users love it: 4.8 stars from 185 ratings.

Summary

Electronics Toolbox Pro is a comprehensive offline electronics toolkit designed for students, hobbyists, and professionals. It bundles 80+ tools and references into a fast, lightweight app for on-the-go circuit design, analysis, and troubleshooting. 1,000+ total downloads and 5 in the last 30 days indicate steady interest in this offline electronics resource.

Pros & Cons

  • Offline-first design enables use anywhere without internet
  • 80+ tools and references in one app for quick workflows
  • PRO features unlock advanced calculations (complex matrices, poles & zeros) and more resources
  • Lightweight, fast performance with regular updates
  • Not listed as ranked in any top app lists
  • Competitors emphasize areas like power calculations, unit conversions, connectors, and pinouts that are not explicitly highlighted here

User feedback

Ratings and reviews on Google Play

Comments on Electronics Toolbox Pro for Android

★★★★★ Mike Lee · Apr 21, 2025
This app is very in depth indeed, covers a heck of a lot. It's been very useful many a time. Well done for such a great help in the field of electronics. I would happily pay £5.00 for this app.
★★★★★ Robert Kelso · Jul 11, 2024
Let me start with the bad things about this app...... I really cannot find any. Really well done and well worth the little it costs for pro version. I still have the non-pro version on my phone too.

Google Play Rating history and histogram

150
22
9
0
0

Store listing

By Peter Ho, from Google Play

“Analog and digital circuit calculator with enormous resources”

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Screenshots by Peter Ho, from the Google Play listing
Description by Peter Ho Written by the developer, not by AppBrain. Click to read.
Electronics Toolbox – All-in-One Electronic Calculator & Reference

The ultimate mobile toolkit for electronics engineers, hobbyists, students, and professionals!

Over 80 powerful tools & references in one clean, fast, and offline app. Whether you're designing circuits on the go, debugging in the lab, or learning electronics, this is the only app you'll ever need.



Basic tools
• Resistor color code
• Inductor color code
• Resistor SMD marking & EIA-96
• dBm, dbW, dBuV converter
• Resistors in series
• Resistors in parallel
• Two resistors in ratio
• Voltage divider
• Ohm's law
• Y-Δ converter
• L, C reactance
• Complex number operation
• RC charging time constant
• RC filter
• RL filter
• LC circuit
• 555 monostable
• 555 astable
• Wheatstone bridge
• Trace width calculator
• Battery capacity
• Operational amplifier
• LED calculator
• RMS calculator
• Range calculator
• Temperature conversion
• BJT bias voltage
• Voltage regulator
• Shunt regulator
• Length converter
• Limit 10 combinations of component values


Digital Tools
• Number converter
• Logic gates
• DAC R-2R
• Analog-to-digital
• 7-segment display
• Minimization of boolean function
• Half adder & full adder
• Synchronous counter up to 6 states
• Cyclic redundancy check CRC-8, CRC-16, CRC-32
• Hamming code


Electronics resources
• SI unit prefix
• Physical quantities
• Circuit symbol
• ASCII table
• 74xx series
• CMOS 40xx series
• Pinouts
• C programming language
• Python language
• Common linux command for Raspberry Pi
• Resistivity table
• Permeability table
• Permittivity table
• Ampacity table
• AWG table
• Standard wire guage (SWG) table
• World plug
• EDA software
• Flip-flop
• SMD marking
• Formulas

PRO Version Unlocks (one-time purchase)
• No limitation of component values
• Selectable 1%,5%,10%,20% of values
• Complex matrix
• Pi-pad attenuator
• T-pad attenuator
• Coil inductance
• Poles & zeros calculator
• More resources

Perfect for:
• Electronics students & teachers
• Hardware makers & Arduino/Raspberry Pi enthusiasts
• Professional engineers in the field
• Hobbyists building robots, amps, and drones
• Works 100% offline – no internet needed!
• Lightweight, super-fast, regularly updated with new tools.

Need a feature? Just email us – we listen to every suggestion.
Download now and supercharge your electronics workflow!


All trade names mentioned in this app or the other documentation provided by this app are trademarks or registered trademarks of their respective holder. This app is not related or affiliated in any way these companies.

Recent changes:
5.8.90
- Fix minor bug
Official page on Google Play

Safety and technology

Found in the app by AppBrain
Ads
No ads
Price
$1.99
Libraries
15
App size
34.1 MB
Needs Android
5.0+
Content rating
Everyone

Technologies used by Electronics Toolbox Pro

5 permissions · 15 libraries
Subscribe to see full permission and library details
Trust & Safety: Permissions include ACCESS_NETWORK_STATE, INTERNET, BILLING, CHECK_LICENSE, and DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION. These are standard for offline utilities with a one-time PRO upgrade and do not indicate access to sensitive user data.

Releases

Updates seen on Google Play
Version
5.8.90
Launched
January 2014
  • Oct 12, 2026UpdateVersion 5.8.90
  • Aug 19, 2026UpdateVersion 5.8.80
  • Jul 16, 2026UpdateVersion 5.8.65
  • Jun 14, 2026UpdateVersion 5.8.55
  • Apr 13, 2026UpdateVersion 5.8.45
Show all changes Show fewer

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Installs

Tracked by AppBrain
Last 30 days
5
Play install range
1+ thousand
Launched
January 2014

Installs over time

Electronics Toolbox Pro has been installed 3 thousand times. Over the past 30 days, it has been installed 5 times.

Rankings

Google Play top charts

Google Play Rankings for Electronics Toolbox Pro

This app is not ranked

About the app and developer

About Electronics Toolbox Pro

Electronics Toolbox Pro is a tools app developed by Peter Ho.

Install Statistics

Electronics Toolbox Pro has been installed 3 thousand times. In the last 30 days, the app was installed 5 times.

User Ratings

Electronics Toolbox Pro is rated 4.77 out of 5 stars. The rating is based on 190 ratings.

App Information

Electronics Toolbox Pro costs $1.99. The app size is 34.14 MB. The latest version available is 5.8.90. The last update was on October 12, 2026.

Technical Requirements

Electronics Toolbox Pro requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since January 2014.

App Performance Report

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Developer information for Peter Ho

Peter Ho

peterhohsy@gmail.com

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