
Marc Gionet
I have a small indoor year round vegetable garden. Thanks to this very simple and easy to use app, I finally know how much I am paying per month for the grow light electricity usage. I had done the calculations by hand in about an hour. But with the app, I simply entered the three values (wattage of my lights, how many hours per day I set the timer, and the cost of electricity in my area), and didn't even need to press go or anything. It actually calculated even as I entered the three values.

Justice Ndekesse
This app is helpful to calculate the cost of electricity. But... the only thing I don't know the voltage you're using to update the result. Kindly add an option to choose a required voltage for a country. Some countries use 220V and some 110V.
3 people found this review helpful

Brian M Carr
Nice & simple & very useful. In one instance it meant that my elderly cat continues to have an overnight heater in the room she sleeps in as it actually costs me very little.. far, far less than I'd initially thought.
14 people found this review helpful