Cahoのふわふわでんたく is a cute calculator app for Android devices that features the adorable illustrations of popular Japanese illustrator Caho. This app is not just cute, it's also highly functional. It allows you to edit your calculations, save your results with names, and change the wallpaper of your calculation screen. The app even lets you calculate tax-inclusive amounts with just one tap.

One of the best features of Cahoのふわふわでんたく is that you can see the calculation formula on the screen, which helps prevent errors. The illustrations are also a nice touch that add a bit of fun to an otherwise mundane task. If you're a fan of Caho's illustrations, you'll love this app.

The app is free to download and use, but it does display ads. However, you can purchase a menu to remove the ads if you prefer. Overall, Cahoのふわふわでんたく is a great choice for anyone looking for a cute and functional calculator app.