How many achievements can you earn on Duolingo? I have 8 achievements right now.
The App has 10... the PC version has 8.
Two of the achievements on the App involve buying a Weekend Amulet and the Clubs which are not featured on the site.
Each achievement has 3 tiers.
Apparently there are 10:Wildfire, Champion, Friendly, Overachiever, Shiny, Big spender, Overtime,Inner circle,Sharpshooter, and Wizard. However, the achievements that I have are eight, without Wizard and Inner Circle. The latter are possibly secret achievements? http://duolingo.wikia.com/wiki/Achievements