Hi, this is my very first post on codeforces. I have made an application using codeforces api. It's available in Google Play store. It can be found here https://play.google.com/store/apps/details?id=com.codeforcesvisualizer

In this app you can :

• View upcoming contest list
• View previous contest list
• Analyze single user profile
• Language chart, tags list, unsolved list and other charts are available
• You can compare two users using their handle
• From contest list you can directly go to contest page

Please, give it a try.

If you find any kind of bug, please let me know so I can fix it. If you have any idea of feature that can be useful, please let me know. I will try to add it.

Here are some screenshots of the application-

Update

This project is now open source. It can be found here https://github.com/droidbond/Codeforces-Visualizer