中国語ピンイン楽引 app for iPhone and iPad
If you are learning Chinese but you dont know how to read them, you can use the Chinese-Simplified handwriting keyboard to input Chinese into the application, then search the PinYin.
*Please add Chinese-Simplified Handwriting keyboard first.
-iOSs settings APP ->General -> Keyboard -> Keyboards -> Add New Keyboard -> Chinese-Simplified -> Handwriting