You can use the symbols keyboard in notes, words, PPT and other text are...

The xKeyboard is a Keyboard Extension, you could use this in word, PPT, ...

kPinyin 是应用在iPhone或者iPad上的键盘扩展软件，设计这款软件主要是为了方便一些语言工作者，老师，学生，更加方便的输入带注音符号...

The kPinyin is a Keyboard Extension, designed for the user who needs to ...

kChem 是应用在iPhone或者iPad上的键盘扩展软件，设计这款软件主要是为了方便化学工作者，老师，学生，更加方便的输入化学式，化学方程式...

The kChem is a Keyboard Extension, designed for the user who needs to en...

The kIPA English is a Keyboard Extension, designed for the user who need...