2026-11-08★★★★★
5/5
very helpful and informative
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Download Electricians’ Handbook APK Free and carry a complete electrical engineering handbook in your pocket. Electricians’ Handbook explains the basics of electrical and electronics engineering rules in simple language, with illustrations that make the complexity of an electrician’s work easier to grasp, whether you are a professional electrician, an amateur, a DIYer, or simply curious about the trade.
The app is built around four main sections: Theory, Calculators, Wiring diagrams, and Quizzes. Each one covers a different side of electrical work, from learning the fundamentals to checking a calculation on site and testing what you know.
Everything in this electrician handbook app is organized so you can find the right answer fast, on the job or at home. The four sections work together as one reference.
– Theory. Learn detailed information on electrical formulas and on the equipment and devices installed in a factory, a house, or a governmental building. The theory covers electrical voltage, electrical resistance, current, power factor, ground fault, Ohm’s law, electrical generation and substation, short circuit, short circuit calculation, and electrical converters, explained step by step so you can learn how to install and repair electrical equipment.
– Calculators. Use various calculators, unit converters, and useful tables for quick, accurate electrical calculations. The set includes an Ohm’s law calculator, conductor size, voltage drop, power loss in cable, battery life, and voltage divider, plus electrical formulas for fast reference.
– Wiring diagrams. Study interacting diagrams for connecting electrical appliances, with complete guidance on switches, sockets, relays, and motors. Reading these diagrams shows how electrical and electronics engineering works in practice.
– Quizzes. Take a set number of quizzes that evaluate your understanding of basic electricity and electrical engineering, so you can see where your knowledge is solid and where it needs work.
That structure makes the app useful both for learning and for refreshing what you already know.
Electricians’ Handbook is one of the top electrical engineering learning apps for improving and refreshing your knowledge, and new articles and schemes are added periodically. It helps you work on many kinds of electrical equipment independently, but always follow the instructions of the professional electricians working for you, and strictly observe electrical safety requirements when working with electrical equipment. Electricity is not visible or audible, so take care.
For a free electrician app that covers theory, calculators, wiring diagrams, and quizzes in one place, get Electricians’ Handbook APK for Android from the Android App Store. Androidru.com Android App Store is the best and safest APK downloader in 2027, and it is the simplest way to keep this handbook on your phone.
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36,350 ratings
36,350 ratings on AndroidRU. 644 written reviews on AndroidRU, 190 shown below. Their honest reviews of this app.
very helpful and informative
really good I love it! only reason it's not 5 stars is no dark mode T.T the white is annoying and why I always prefer dark mode. if it gets added immediate 5 stars.
useful app
exellent electrict book
educational, informative and easier explanation
it's a good app and i really like it it
Incredible
i love
easy learning tool for beginners ..recommended for all
Awesome 👌👌👌👌👌
I have found the app to be just AI dump of images. Some info is correct, lots is not.
this is very informative
awesome
good
I so much like this App, it is amazing
good app
nice
good
basic and regular daily usage to pro. well-done
good
Very informative and enriching and practical.
Everything+
practical
beter than
this is so helpful application for electrician and other people my openion : you can add assou option for design of lighting
the ads are too much and misleading
it will help you if your in to be a electrician,the key points are amazing.
Hy love this App GooD Effort Newly Born Electration Can, t understand it fully well I Really Appreciate it Love And Respect to Admin Thanks From Multan Specially From PakistaN
it truly practical to learn from this app
Good
great app for electricians
very interesting
good teaching .
praying fasting worldwide
perfect 👌
great app for technical studies, really helps me out
Good Apps
very very useful..
great app. vary pleased with it
gud
10/10 but please unlock the rest 😭
visually so impelling
good
nice
this app is the first app that i enjoyed, because it makes things to be more easyer faster. so it is the best for me.
The app is cool
fully satisfied
nice
🖤🖤🖤
I love the app
good for basic
This app for sure has helped me to add on my professional
Amazing App
ótimo
Good app. But it needs improvement
very useful
Technically good app
Good
very useful.
fantastic 😍
Very useful app🙏🏼
love it
It is a very good app
though my phone is lately slow your app is one of the best I ever encountered.You came at the right moment for me and some of my electrician friends.Keep it going on.I have no complain at all.
I just find it's easy for learning
Good App
👍
what I have learnt in this app in a week I did not learn in 12 yrs of my schooling. it's the best app for anyone interested in electrical engineering & electronics.
অনেক ডায়াগ্রাম গুলোতে কেবল কালার ও কানেকশন ভুল রয়েছে ।
beautiful
very clear
very helpful from someone trying to join local IBEW
Excelente app,No hay dudas
educative and well illustrated images
l hope this App is good. This App is a must have
all the tools I need for the future🤟
very good app
excellent little app really helpful for beginners
it is good
Simple straightforward
so basic it is only fit for school projects at a low level, the terminology used in descriptions would just add to confusion.
extremely helpful
It's comprehensive enough to help me through my electrical journey.
good app
perfect inelastic!👍
অসাধারণ
nice and smart
Worst Electrical App you can download. It's built with useless ai just for ads. the diagrams are messy and wrong ,don't wait your time.
it's great I've installed it in all my phones
This is an educative app and should be freely accessed
give us free
good
Am learning alot this app is excellent 👌
grat I
very helpful
very educative
this app is very good.
very useful
Very useful for Electricians.
this is useful, i can do electrical installation and fixs electrical problem just by reading this handbook..
thís app is a good learning tool
It Makes electrical repairs a BREEZE & saves you hundreds in expenses
Am learning a lot through this app..💯🔥👌🏽
It teaches me a lot about electricals
great information, well structured 5/5
easy to learn
it has everything one needs to know especially to us studying power electrical
it's simple and easy to understand
it's the best app especially for the engineering students
easy to use app will keep you from messing up
had very useful information in it
nice and simple , 👌
very helpful at all points very nice app
It has been a great help thus far to assist in adjusting to the US standards
Very good information especially for Student and entry level candidates
change the app name to ads handbook
its a good app for basic electrical stuff and a lifetime supscription for less than a mcdonalds burger worth every penny.
wow, I love the app so much, it makes for the first time since I have downloaded this app I have learned more electronic terms and am still learning more from the Electronic Handbook, it is good to give a flower to a man while he is still alive, I very much appreciate this app & thanks to the family, more knowledge should add onto you for more, thanks a lot for your time and everything else
Great app easy to use and understand
the app is very helpful especially to students and apprentice who are eager to know more of what they are doing. I highly recommend it
helpfull apps to refreshed and reviews.
easy to use and it gives you what you need to know in short but with all important details
even on downloading and enjoying the app they are trying to click on ads ads ads. no thanks. I will not go further.
great for beginners !
It's a good and edilucative app.
Its really a good staff
it has been much helpful and updated one is much bttr too
RIGHT NOW I RATE IT 4 CAUSE IT GOOD, BUT THERE'S LITTLE CORRECTION THAT NEEDS TO BE DONE ON PASSING OF CABLES👍
the best of the best!! this app makes it easier to understand electrical...I'm so glad l came across it .it has helped me so much with my studies!!
it's very good to learn with
It's very interesting book indeed. I like it🤝.
It help so much with my EEE learning and skills improving 5star for the app 👏
personally, I think it would be vital for all workmen and all peoples to be well prepared with information at their fingertips. And an app like this is one of many examples that sustainability, independence is necessary for personal and communal growth for our society. That, is my take on it. sincerely, Steve.
This app is good and it helpful a lot I understand soo many things on it, I rate it 100%.
giving a 4 star so far only cause of the amout of adds you have to deal with other than that!!! its actually very helpful and has a lot of knowledge
Synthesized, punctual, declarative and useful construction in the work site. More tools added.
I think the App is a bit good but sometimes get slow so improve it to make it run faster.
I understand adds on app. But 10 seconds of add in each selected tab is a respect missing on our delicate and risky job. Erased. Can not accept it. Thanks.
very easy to understand and informative it would be nice if you could include a little bit about relays anthe currents and gates but i love your app
I didn't think some information was locked but very informative otherwise. Easy to understand and good illustration.
The app helps with both theory and practical aspects but it would be better if you could add some videos
That app is best but in this app you used high level language so I requested to you sir kindly please you should work on easy language for beginners and fresh engineers I both language like urdu and English Thank you for making this app for students
Before I don't know what are the tools that I'm going to use for my electric work and some basic theory for the electrical equipment, but now I was happy to have this app for myself to fix anything related with electric.
this is the app for electricians no matter their experience level or amount of years in the field. if you have a question to ask any electrician, skip that, and easily find your answer in the Electricians' Handbook app. the category interface is easily understandable and any information one is looking for to stay up to code one will find it. that's without the circus act it normally takes to get a question answered involving electricity and it's uses.
Practical and useful, precise info for anyone caught in an electrical jam! Takes the deadly guess work out of the equation!!! Good knowledge is a power in itself.
This app is almost impossible to use because ads keep popping up constantly. I couldn’t get anything done without being interrupted. The design is poor, the experience is frustrating, and it feels like it was made just to show ads instead of being useful. I do not recommend downloading this app.
best for beginners and learners as well.. a simplified tool for learning electrical knowledge, yet very effective and educational.. I hope the developers will introduce more functions for advance electrical knowledge.. as an electrician my self, I find this apps a big help to add and refresh my basic skills.. good job👏
This app is very well organized and has a good, easy structure. The app makes it easy to find and understand important Electric components. This looks like a valuable tool. I hope to get more familiar in class so I can use it more when I run into a question outside of class.
"This app is very helpful for electricians. It provides clear guidance about solar systems, wiring, inverter settings, and DC systems. Very useful for both beginners and professionals. Easy to use and everything is available in one place."
Of some use. However, some of the items are inaccessible as they appear behind the top banner or bottom ad. From what I've seen I wouldnt pay for the pro version. in fact I'm too frustrated by it. It's gone.
This is NOT a handbook for electricians unless they weren't paying attention during their training. This app is mostly for non electricians who probably shouldn't be playing with electricity to begin with. Just look at the tools section and you will understand. Waste of time. Deleting!!! Too many ads. Way too many grammatical and spelling mistakes.
the first thing i noticed is This app has in app "calculations". I was curious about whether this was a calculating function or a simple formula lookup. it is clearly supposed to be an actual calculator. I decided to test it out so I input a calculation for a parallel resistive circuit of 10, 20, and 30 ohms, Expecting to be at least satisfied with the answer. But no, the app came back with 0.01 ohms. for those who are not familiar the correct answer is 5.45 ohms.
Great app, but please add Nepalilanguage This app is really helpful and informative. I appreciate the effort to include multiple languages — that’s a great step. However, I noticed that Nepali language is not available. Nepal is also a country with its own language,and many nepali users would benefit from having content in Nepali adding Nepali (and other widely spoken regional languages) would make the app easier and more accessible to many people palese. please consider including Nepali languag
Don't know much about electricity but this app is exceptional. All one needs to know is explicitly clear. I had always done some electrical works with a minimal understanding. But with this app it will be different, more confidence and certainty. Cheers to you guys that produced this app.
trash. why pay 2.99 for an app that contains adds. counter productive for the user. I'll be getting with customer support for a refund. no app that is paid for should be allowed to contains any adds for anything.
overall good app. had pro version on my old phone that got smashed & really like it. couldn't remember email/account i had app under so will need to buy again. really useful if u are in electrician/electronics field.
It's a good app with good information, but the intrusive ads are a but much. There are other similar apps that have ads, but they aren't intrusive like these. Having wo sit there and wait for an ad to finish before I can do anything is ridiculous for an app like this
Ads are too intrusive for the free version. I never buy apps if they have intrusive ads in the free versions. I'm not going to sit and wait 30 seconds to access something I can find faster with a Google search.
They really need to work on the app inorder to improve the knowledge they are sending out on this app, wrong grammar, translation to other languages doesn't work on all topics. Some definitions don't really make sense or just half material given. Don't focus on making different apps, focus on picking one app and making it better,not to forget about ads. Thank you
Very basic information. Too many typos, words not being correctly used. Seems someone is translating from a different language. Speaks about fuse box wich is komlonger used.
Excellent source for looking up electrical information 😀 However, there's no way to control the notifications in the free version. I get notifications and click on the referenced messages, but it just opens the app and doesn't take you to where the referenced topic is located.
There's no need for audio for your ads... escpically considering it does so without any "permissions" granted.... app looked decent but for me that alone ill just search online instead of using this app.
Great like ever aspect of the app , it's functional , it's easy to navigate , the overall program runs smooth, the content is informative , logically relavent , very useful, I use this app as a reference tool during projects , work orders , and education , it has become indispensible to me.
It delivers! This app does exactly what it promises, and has all the info you need presented in practical, well organized way. No, it is not a comprehensive course in electrical engineering, but it is not the original premise either.
This app is great. As me being an Industrial Maintenance Mechanic and a Heavy-duty Mechanic. This app gives you knowledge and a reference guide all in one. When you want to start a project the information is there for you to be able to calculate. When you forget something cause you have not thought of it in a while the information is the to read and study again. I am sure glad someone came up with this app. The only thing is to make it available offline. No network underground to use it.
Sorry you lost my trust in the calculations when I tried parallel resistor calculator and it was wrong e.g. 10 || 10 is 5 ohms Not 0.2 ohms as per your calculator. A similar problem exists with two capacitors in series. Checking your theory page also shows the same mistake. The battery capacity seemed wrong until I realised % safe discharge level meant % discharged not the % battery voltage left. Other items are good. The animations will help electricians at a junior level.
Installed this as a reference guide but when I looked for recommended AWG size for AC amp load it was nowhere to be found. Illustration of wire nuts when listing pin and sleeve, illustration of an ammeter connection actually showing a voltmeter connection marked with an A. Looks like a complex app but so many errors in it I will be deleting. Make sure you have the right information when working with electricity!!
Hi it is a good app indeed because I learned more explanations about the electric equipment , And the rules and regulations, Safety as well as how u can wire Or install with different wiring diagrams and so other electric thanks.
This is a very great opportunity for me to learn more from this app,please do not stop teaching me. This is sertainly to me a very useful opportunity to have this app on my mobile believe you me and that's no maybe.(do it myself) Keep it up 👆 !!!
Nice app. I really enjoy the material and references. Some links are broken like the thermocouple color code table, but otherwise it's well put together. Thank you for developing Electricians' Handbook.
Excellent thanks. Covers just about everything, I don't know of a better app on the subject. Could use a better English translation is the only improvement I could offer, but that is just for perfection purpose. Also you could sell ad links to electrical suppliers in the tools section to help fund your improvements.
It teaches a lot and very informative about electricity.. One may use it as a guide and a handy book as it even shows you about the tools you'll need. Not only you'll know what you work with; but also you'll get to know how to do it and what you'll need to do the task...n
Obfuscated and overated. As a master Electrician for two states and contractor I'm baffled by who would want to spend the time watching ads for such a marginal app. You could Google or you tube an electrical question much quicker than you could find it in this app.
I have been doing this stuff for close to 40 years and sometimes we vets forget some basics and need to be reminded of some 101 things. This offer's very basic knowledge but it can be helpful. I have carried this app on my phone for a while and even though I hardly ever have used it I have offered it to a few new kids on the block which has open some helpful conversation between them and myself along with some other journeymen. I recommend the app to anyone who is interested in the subject.
Let there be an update for this app which may include all the two basics type of power sources which are: #.solar( all types of arry connections)#.batteries (all form and types of batteries connections). About all,this app is very good and helpful to all electrician not only me. Thanks to the developer of this app! Hit u streagh from Liberia!!! Love you all🙏🙏🙏🙏
Wow this app is amazing for those who are studying and working within the electricity sector. The app has advanced my knowledge in electricity. My suggestion is add video and more information.
It gives you the basic information in layman's terms. If you can follow instructions and comprehend basic symbols it explains everything and the chapters are easy to follow and everything is in specific category for easy reference. There is explanation of several basic theories for electricity. Color codes, how to charts, there's a lot included in this app. Exceeds my expectations. Worth the download and awesome learning tool.
Big ad takes up half the screen and you can't close it if I like an app I'll buy the better version but this makes not even want to try it Plus the constant rate the app notification
A very informative and useful app. Some times however it feels that the illustrations should have been described in more detail.
I've been doing this for many years and it's been many years since I've been in the ABC School, so instead of burning my brain out digging up memories. It's way easier just to pull my phone out for a quick reference. Love the app. Very helpful and to the point. Wish this was the thing when I was taking my masters. I refer this app to all my apprentices, and even my journeyman to have on hand for a quick reference. Wish I could give it 10 Stars it deserves it.
This app is incomplete and so short, no much detail, put in more info. And please research more to incorporate other countries, some of the information seem to only work in india or something, and not in other countries and so not really helpful on many instances. Label the transformer parts
Can be useful in certain circumstances, but is incomplete. For example,I don't see the conversion table between watt and horse power,but I must sill check it properly,may be I missed it.
3 Appsl, definitely helping myself getting tangled up in a lot print outs.., manafesting all the possibilities ingenered.. taking so much the field keeps showing me I can learn and if I can use all of it binificalally with my work, with the world always needing this learned, right next to welding and agriculture. I can say I'll be able to use it for any of the future career choices I find available. Wish there were more types of apps with available info, on or off web.
So many things that I have been wanting to know about just appear to me like a magic, i would have given it a 5star but the app force me in to rating with out me no going true it as i should have, keep on closing, closing and forcing rating on me.
Just had a quick look at the exam questions the answers aren't clear one answer was for transmission voltage answer available was 400k (it's 400kv) difference is important. Some answers were not spelled correctly I knew what they were but missing first letter (e.g. "ow" instead of "How". Another had a duplication of the answer for the same question but if you picked one over the other it was wrong. May still be a good app. I got anonoyed and deleted it because of the glitch practice tests.
Overall I think it is a great app and very useful for anyone in the industry. There is a problem with your voltage Matrix. Canada is 600/347. As I have used it more I have gotten a better idea of the quantity of information that has been assembled and categorized. Looking back on my career of 40 years I can only say that if this had been available it would have made things a hell of a lot easier!
English is clearly their second language, perhaps they can have a better speaking friend proofread the content first? but still good information and effort. Well organized and helpful
This is good. I really love what I have been missing since I venture into practicing. Example in the area of switching, I have now seen that when it is on the branch that was black changes to red to give it, changing the branch to become means for it to bring light.
Wow!!! I real love this app, it's real improving wow!!👌 Please add something like a user can able to create a circuit will all material like wires,bulbs,switches including day/night switches, powere source so that he will try to make a connection him self untill the bulb glows, I don't know if you get what I am saying, Thank you,keep it uu And keep it up!!!❤👌
The app is much useful in terms of good references and resources. But unfortunately it crashes when I wanna open the "Theory" section.
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