[Silver Lining] Where On Earth is a mobile game, which is available on Android and iOS, for people who want to improve their knowledge about geography and location. The game-play create a challenge for user to guess the image, which is pulling from NASA's satellite data. The very first correct answer will be recorded and announced to all people in the game. Facing the world to show your knowledge about geography and improve it.

This project is solving the Where on Earth challenge.


Functional Requirement:

-Show the current quiz + hints -Submit Answer -Chat stream -Ranking & Leader Board (World Class | In your friend list) -Facebook Login -Number of try attempt people

Non-functional Requirement:

-To be added later.

Project Information

License: GNU Affero General Public License 3.0 (AGPL-3.0)"

Source Code/Project URL:


[Silver Lining] Where On Earth Pivotal Tracker -
[Silver Lining] Where On Earth Rails Server -
[Silver Lining] Where On Earth Android App -
[Silver Lining] Where On Earth iOS App -


  • Sang Lai
  • David Nguyen
  • Minh Triet Chau
  • duy phuc
  • Hoang Luu
  • Khanh Phan Duy