Today I updated the app, and it went from a tree to a path in an instant.
Here are some changes from the web to the app.
First off, there are some new updates, such as the daily quests, and something where you click on the characters to do a certain exercise. It only costs 100 gems per lesson!
I can't see the XP amount I have per day now, I don't know where that went.
The shop moved to the gems. Click on it and you will be there.
Streak society gave me new stuff (600+ streak)
First off, I got 3 streak freezes because duolingo wants you to keep your streak. So now I have 5 streak freezes, and you get 1 streak freeze every 33ish days, or 100 days per 3 streak freezes. I'm also able to change the app icon to a fiery duo, even though I don't have Plus (Or Super, whatever it's called now)
Also, the 7 day wager is gone... replaced with a 30 day wager, which gives you 200 gems. Click on the streak symbol to claim Streak Society rewards, and do a 30 day wager.
I don't know about the new tier system, so I'll leave the streak society at that.
Also, the path gives you this on the app.
Instead of leveling up an entire unit to legendary, you have to upgrade them one at a time to earn your trophy. They feel easier than before, and they also give you 8̶0̶ 40xp for every completed legendary lesson.
Anyway, that's all I have for now, bye!