Thank you for all your feedback and support!

Over 7,000 reviews on Google Store with average score of 4.7!

I’ll be giving away promotional codes to download the PRO version for FREE!

All you have to do is leave a comment below with your name, remember to use a valid email address as I’ll need it to contact you if you win!

Latest Winners

How to Participate

Quick and Easy

Every Friday I’ll be announcing the winners here, for every 10 participants I’ll giveaway 1 promotional code, meaning if for a week 50 people comment below I’ll giveaway 5 promotional codes, so you will always have a chance of 1 to 10 to win. (which is easier than the lotto… lol)

To participate just leave a comment bellow, remember to use a valid email address, if you win I will contact you via your email.

48 Comentários
  1. Autor
    herbsc 2 anos atrás

    Leave a comment here and you will be participating, check on the post details about when the winners will be announced.

    Note: Remember to use a valid email address when registering to comment as this will be the only way I will be able to contact you in case you win.

    Good Luck!

    • Gerald 2 anos atrás

      Would be nice if you could add info about varistors

    • Abc Def 1 ano atrás

      Useful for me.

      • Tara C Drennen 1 ano atrás

        I’m in 😎

  2. Tara Drennen 2 anos atrás

    I’m in 😎

  3. Brendan Doherty 2 anos atrás

    Not surprising, this is a great app

  4. Kenny 2 anos atrás

    I’m in 😁

  5. Matheus 2 anos atrás

    Helped me a lot 🙂

  6. Stefan 2 anos atrás

    Nice app, thanks for creating it! 😀

  7. Maelen Dorias 2 anos atrás

    Nice app, this helped me a lot

  8. Andrew 2 anos atrás

    Great app

  9. Kadmiel 2 anos atrás

    Great app! Hoping to win! 🙂

  10. Patrick Losey 2 anos atrás

    I really like the pinout feature. Sometimes it’s hard to find stuff like that on the Googles and here it is, in an app. Thanks!

  11. Matteo Tullo 2 anos atrás

    Great app, thanks so much for the information

  12. LEONIDAS ANTONIO SILVA SANTOS 2 anos atrás

    Ótimo aplicativo esta me ajudando muito na minha área que é da elétrica .

  13. Mikołaj 2 anos atrás

    Nice app.☺

  14. Javier 2 anos atrás

    Su app es la que utilizo desde hace un tiempo, no tiene igual.
    Quisiera participar en su sorteo.
    Gracias.

  15. Winicios 2 anos atrás

    The best app!!

  16. J.C. 2 anos atrás

    Muy buena la aplicación… Para estudiantes y profesionales

  17. Michael Knight 2 anos atrás

    Wow sehr gute App!!!👍

  18. Michael Knight 2 anos atrás

    Sehr gute App! 👍

  19. E.B. 2 anos atrás

    Hello, I like the app much – but one thing I’d rather like to have is a PT100 (500, 1000,…) table or – even better – calculator as I often have such R thermometers in use. For a calculator, it could also be nice to not only have R -Temp conversion, but also U, I -> Temp (for occasions where one is using constant-U or -I sources).

  20. ytterdal 2 anos atrás

    Excellent app!

  21. Joshua Davenport 2 anos atrás

    I’m a maintenance electrician. I use this app frequently and I would love to have the Pro version.

  22. Kats 2 anos atrás

    Very useful app!

  23. Kats 2 anos atrás

    Excellent job!

  24. Kouame 2 anos atrás

    Très bonne application qui fait son travail

  25. Crystal Skunk 2 anos atrás

    Super application, pratique, simple et complète !

  26. Jeroen 2 anos atrás

    Very useful.

  27. Jeroen 2 anos atrás

    Great App.

  28. Ignacio 2 anos atrás

    Your app its one of the best, thanks

  29. Leonardo Nascimento 2 anos atrás

    O melhor aplicativo sobre engenharia, gostei muito e recomendei para meus colegas de faculdade.
    Parabéns!!!

  30. Wesley 2 anos atrás

    The best app! I’m helping translate to Portuguese.

  31. JR 2 anos atrás

    I’m in

  32. Liviu Petcu 1 ano atrás

    This is a very useful application. Thank you for it!

  33. Hauke Frederik Pengel 1 ano atrás

    If this app wouldn’t exist it had to be invented. So useful, I recommend everyone working in that field to use it. Should be a must have for beginners.

  34. Eninspace 1 ano atrás

    I’m in

  35. Leon 1 ano atrás

    Can you add info on circuit diagra8

  36. Rancho 1 ano atrás

    I wanna win the pro version of this great app!!!

  37. Hauke Frederik Pengel 1 ano atrás

    I really like this app and would like to have the pro version 🙂

  38. Brayan Gasca 1 ano atrás

    Exelente aplicación, Muchas gracias por realizar está aplicacion me ha ayudado bastante para mis proyectos electrónicos, Saludos cordiales desde México

  39. Gian Luca Galazzo 1 ano atrás

    I really like this application
    It’s very useful

  40. RANDY 11 meses atrás

    Great app! I don’t use it often, however when I do, it is quite useful.

  41. Tyler Baenen 11 meses atrás

    Tyler here from FL. I am trying to further my knowledge base in micro electronics, and your application has helped me immensely in the process of identifiying and understanding exactly how different components of circuitry function. The calculators are extremely useful, and have probably prevented me from shorting many a micro controller. Thank you for all of your effort in creating such a great freeware app. Would love to see what the Pro Version is capable of. Keep up the great work guys!!!

  42. Amed 7 meses atrás

    Excellent travail!
    Merci infiniment!

  43. Sasha 7 meses atrás

    I’ve only just begun exploring this app, and it looks excellent, but what first strikes me is the frankness of the developer regarding the realities (necessities) of advertising revenue to support the ongoing development of our favorite apps. There are zillion apps but just a small portion of them are really great, and most of them barrage the user with ads every few minutes and demand 5-start reviews on PlayStore. Thank you for a really nice app, and your sensible approach to the revenue situation.

    • Autor
      herbsc 7 meses atrás

      Thanks a lot for your comment Sasha, really glad when people appreciate the effort put into the app, as you pointed very well, all I ask is for people to consider supporting when they can their developers. Have a good day

  44. Dom 6 meses atrás

    Hello, thank you very much for this app. I’m a computer engineering student and just found your app and already love it. Valeu, Bro!

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