A free program for Android, by LiteWhite.

Do you think that the built-in calculator in your smartphone or tablet is not up to your demands? Or have you grown tired of going the long way just to arrive at an answer? Then, you should take your computations to the next level with the Simple calculator app.

With additional functions, this app will let you calculate in a quick and convenient way. 

It features a percentage key, so you don’t have to divide or multiply a number just to get the percentage. With a single click, you’ll be able to get an answer.

Apart from that, this calculator has reliable memory keys. This means that your previous computations will be saved so you can view them in the future.

Simple calculator app is available on the Google Play Store.