Xuejun Li

This app is for you to get the information of any product by scanning the barcode. First place your

Smarter! Happier! Healthier! With this math app, you can try to get a target number, by using each o

User can select from Kindergarten, 1st grade, 2nd grade, 3rd grade, and 4th grade. Math problems of

User can select from Kindergarten, 1st grade, 2nd grade, 3rd grade, and 4th grade. Math problems of

This app is for scheduling daily reminders with notifications. For any reminder, user can set the ti

This app is a handy tool for measuring the angle between two lines that are formed by any 3 points.

Handy Level is a tool you can easily use to check if any surface or object is horizontal. Put your d

Handy Ruler is a measurement tool that is easy to use, for measuring any distance of two points. The

This QR code app is your one stop solution. Scanner: Use the camera of your mobile device to scan a

This All-In-One App has two modes, "Speech to Text" or "Text to Speech. It's a great tool for bu