Weekly leaderboard on Android
The Duolingo Android app is really great! However, would it be possible to show weekly, monthly and overall leaderboards, rather than just overall? It's fun to push eachother on by friendly competition, but it's difficult with only the overall leaderboards. It would also help if it could be divided (e.g. using a drop-down/select filter) into individual languages. Being an Android developer myself I can help if needed.