Electrician’s Handbook

Contains adsIn-app purchases
4.7
103K reviews
5M+
Downloads
Content rating
Everyone
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About this app

For everyone whose work involves electricity — for professionals and enthusiasts.

This app is a springboard for further study of electrical engineering.

The app includes four sections: theory, electrical wiring diagrams, tests, and calculators.

The app offers over 55 concise articles and 7 calculators. Content is added and updated regularly — feel free to suggest topics.

Briefly covers voltage, current, power, short circuits, Ohm’s law, and much more.

Warning! When working with electrical equipment, electrical safety requirements must be strictly observed. Remember: electricity cannot be seen or heard. Be careful.
Updated on
Aug 20, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App info and performance and Device or other IDs
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.7
101K reviews
Oaky R.
April 28, 2021
The app itself is useful and gorgeous. It lacks some info like ampere ratings, and I personally want to know how to install a two way switch. I dont even know a two way switch from a three way switch, but I know it is complicated. A switch is so simple. Electricity is not simple. Anyway, this app disapoints in its lack of textbook style knowlege. Two stars for you guys!
251 people found this review helpful
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David Curtis
June 22, 2025
For me, not having any formal education with electric I have learned a lot especially the terminology and different calculation formulas for assessing different applications.
4 people found this review helpful
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SergeyV Apps
June 22, 2025
Thank you very much 🤝 Glad you like it
amadeusz12386
June 25, 2025
very usefull, many topics in one place well categirised and writed in easy to understand language.
4 people found this review helpful
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What’s new

Minor fixes