Duolingo - Please add more things to do with Lingots.
Your 7 day streak wager mechanic got me working on my Spanish again. I know mobile version has alternate costumes which are OK, but desktop doesn't even have that.
Adding small cosmetics would go a long way, but I feel they could do even more to make who whole experience more game-like. Little bonus stuff like a word search or puzzle or simple game would be great additions to the store.
Thank you. Anyone else reading this should add suggestions they might have.