There are 6 ways to get coins in the game:
1. Color a picture
2. Complete daily tasks
3. Get an achievement
4. Get a daily bonus
5. Complete a marathon
6. Purchase boosters in our game store: to access the store, tap the coin icon at the right top corner.

You can use these coins to buy special sets of pictures and new stickers. The coin icon in the right top corner shows your balance.