Electronics Toolbox

Electronics Toolbox

Analog and digital circuit calculator

App info

5.6.20
Education
June 28, 2025
823,818
Peter Ho
Android Varies with device
Everyone
Get Electronics Toolbox for Free on Google Play
Download APK
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App description

Android App Analysis and Review: Electronics Toolbox, Developed by Peter Ho. Listed in Education Category. Current Version Is 5.6.20, Updated On 28/06/2025 . According to users reviews on Google Play: Electronics Toolbox. Achieved Over 824 thousand Installs. Electronics Toolbox Currently Has 5 thousand Reviews, Average Rating 4.6 Stars

This app is a collection of basic electronic calculators. It is suitable for hobbyist, electronic engineers or professionals.

You can buy the PRO feature to unlock more features.


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

Features in PRO version only
• No Ads
• 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


Note :
1. For those who need support please email to the designated email.
Do NOT use either the feedback area to write questions, it is not appropriate and that is not guaranteed that can read them.

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.
We are currently offering version 5.6.20. This is our latest, most optimized version. It is suitable for many different devices. Free download directly apk from the Google Play Store or other versions we're hosting. Moreover, you can download without registration and no login required.

We have more than 2000+ available devices for Samsung, Xiaomi, Huawei, Oppo, Vivo, Motorola, LG, Google, OnePlus, Sony, Tablet ... with so many options, it’s easy for you to choose games or software that fit your device.

It can come in handy if there are any country restrictions or any restrictions from the side of your device on the Google App Store.

What's New

5.6.20
- fix minor bugs

5.6.15
- TOML file format
- ARM assembly language
- Running LLM on Windows/Mac
- PIP package manager for python
- UV fast package manager for python


Rate and review on Google Play store

4.6
4,731 total
5 73.2
4 16.0
3 8.9
2 1.0
1 1.0

Total number of ratings

Total number of active users rated for: Electronics Toolbox

Total number of installs (*estimated)

Estimation of total number of installs on Google Play, Approximated from number of ratings and install bounds achieved on Google Play.

Recent Comments

user
Zachary Beath

It's a fun app to look through and have around if you diy with electronics and repair.

user
Ondřej Němec

This is brilliant. Really, when I saw how many things are in this app, I was mindblown. Nevertheless there is one detail I noticed that someone could easily miss in my opinion: the physical quantities and units table is great (although there's a typo - kevin instead of kelvin) but I think that it would be nice to add also expressions of given units in SI base units. And I don't know if you're planning it, but adding a list of some useful physical constants would be another welcome improvement.

user
A. “Max” Eckardt

Love it. More useful than anything I have ever seen. When I first downloaded it I only skimmed through it. Since then I started on a project, I remembered I had this app. I was able to quickly figure out how it worked and able to find the values I needed without all the maths or searching online. If an idea pops in your head, you can open this app and bounce some configurations around. Very handy tool app.

user
Miles Peterson

I tried it out, but was immediately didisappointed after I realized that it's literally just a bunch of random circuit calculators. I was expecting stuff like circuit diagrams. 3 dtar, because other people may use this more than me.

user
Jeff A

Unbelievably deep knowledge bank for all things related to electronics, programming, calculations, math, that even a novice like me can appreciate. I saw that pro was $2 and I don't even know what pro includes but I think it's worth giving devs that make free apps like this an incentive and reward for their work and contribution. I've spent 10 mine skimming the app and I'm writing this review like a long term user that's how quickly it made a positive impression on me.

user
A Google user

Check out the app & it very quickly tells you that you can only perform 10 operations (given no advance warning of this caveat) within the app before it refuses to do anything except display ads and tell you to buy the paid version. Then when you try to exit/close to uninstall it displays another ad & disables your key. If Peter Ho of HK has participated in any of the recent demonstrations he might take a moment to reflect on the concept of revolution beginning with oneself.

user
Kingsley Okoro

This is the best electronic circuit app i have ever come across But to improve this app i suggest that you explain the uses of those electrical components and how they work and as well show their images for better understanding You only included their symbols. Thnaks

user
Blueblood Dust

I haven't got to use the app yet... upon first exploration of the newly installed app à windows popped up interrupting my progression of the app itself with a window asking if I was gonna spend some money basically, there were three options and I clicked share since there wasnt option on there even remotely close to "no thanks" option I would have chose, had it even been there.. And then another window (also disrupting my progression) asking if I would like to rate. Can I use the app NOW????PLz

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