For every lesson you complete, you finish a daily streak that is calculated. As you complete lessons, you also progress levels and can move higher up in a leaderboard.

More screenshots from‏‏‎ ‎

Memrise

Top level tabs
Buy premium
Onboarding
Gamification with the translation camera
Learning experience
App Store screenshots

More‏‏‎ ‎

Gamification

Gamification and badges
Competitions and gamification
Gamification with the translation camera
Transfer coins