This is a free music game without ads. It brings you the feeling of instrument player with an extremely simple piano with 5 keys. ......

The simplest and safest local password safe. Local data 100% safety and reliability. No cloud, no network connection, no remote server, ......

A compact and concise local music file palyer. Choice audio files through file browser. Support filelist function, easy to manage audio files. ......

A compact and concise formula calculator. You can use Calculator to perform simple calculations such as addition, subtraction, multiplication and divsion. ......