Basic Calculator remaining on any app that is in execution allowing calculations without the need to enter and exit the app. You can minimize, move and resize the device.
You can minimize the ads so do not bother.
Once open you can move around your device and open or close other applications where you can use the calculator. From the lower right corner you can resize the calculator to make it smaller or larger depending on your needs or simply zoom effect on your device. Simply drag and drop you can move the calculator (or ads) to place it where you need.
NOTE: For devices of less than 4 inches, the calculator may cover the entire screen. If you see close buttons are below the ad, just have to minimize it in order to close the calculator
And as always any question, any request, if you fail the application or simply if you think there's something that you were interested in it, write to email@example.com and as soon as possible will attend your suggestion. Thank you.