This is a great app! Even if you know nothing about electrical values or anything that relates to power or voltage, you can still use the app to figure out what you need to have to do your work fairly safely (there’s always gonna be that one guy out there somewhere). I also want to thank the developer for putting the ads where they are not in the way or popping up in the middle of your equations. They are very visible and not in your face about it and that actually makes me look at who they are and what they are trying to sell instead of mindlessly clicking them out of my way. Way to go guys! Top notch in my book and will definitely stay in my arsenal of tools.

I used this app for an extensive conversion to LED’s at a museum I work for. The app is simple to use, fast, and because there’s no distracting clutter, helpful in keeping focus when there is a lot to be done. This app made my phone one of the most useful tools I used. Would that everything were this useful.

No crazy bells or whistles, just a very convenient, user-friendly calculator. The ads are REALLY small and don’t get in the way. I paid the $0.99 to get rid of the ads, not because they were bothersome, but to say thanks to the developer(s) for a great app that I use a couple of times per week.

I am an engineer responsible for maintaining 400-buildings, on teeth-three compounds. I can do Ohm’s law in my head close enough for checking 120 &240-Volt circuits. But the guys who work for me can’t.So, I have them load this calculator. It is simple to use and fool proof.