A free program for Android, by Yasukazu Umekita.
This calculator app is basic enough to do your simple calculations. But its difference from other calculators is that you may choose from seven color background designs it provides which depend on your preference. Each of those colors has themes of flowers and hearts which adds fun while you are calculating.
With its slightly large buttons, you can easily and comfortably hit the buttons and not worry about entering the wrong numbers.
This was designed with a simple and intuitive user interface to provide users with a hassle-free experience. There is no need to download any other apps before using this.
