Are you a fan of Japanese Akiba culture? How about math? Who am I kidding, everyone loves math! If either of these apply to you, then you should probably take a look at Althi’s App, CalcGirl (Android title) or Calculator Girl (iOS title). Calculator Girl is an interactive calculator application with a bit of a twist. Instead of the normal interface, Calculator Girl features, surprise, a girl. The anime character has a variety of different outfits for you to choose from, or purchase from within the App. This is done by swiping left or right on the screen. Here you can alter wallpapers, purchase outfits or swap them around. The Calculator Girl will also recite the buttons you have pressed, as well as the answer to your equation (in Japanese of course). She will also begin to speak if you don’t interact with the App for a few moments. If you like your anime, and are bored of your phones average calculator, then take a look at this App either here for iOS or here for Android. Best of all, it’s free.