Piano Keyboard is a free input method app developed by TaeWoo Kim for Android devices. As the name suggests, this app features a keyboard that looks like a piano, allowing users to type while feeling like they are playing a musical instrument.

The app offers several settings that users can customize, including Play Sound Settings, Word History Settings, Keyboard Set, and Custom Keyboards. In the Play Sound Settings, users can choose between Recommended, Original, and No Sound options. The Recommended option plays familiar music as users type, while the Original option plays all sounds in place. The No Sound option, on the other hand, disables all sound effects.

Additionally, the app recommends words as users type, making it easier and faster to compose messages. Users can also choose from a variety of keyboard sets or create their own custom keyboards. Overall, Piano Keyboard is an interesting and smart input method app that can add a touch of creativity to your typing experience.