Here is the full list of all 30 Flippt achievements.
Reach level 100 on Easy
Reach level 50 on Easy
Reach level 25 on Easy
Reach level 100 on Very Easy
Reach level 50 on Very Easy
Reach level 25 on Very Easy
Reach level 10 on Very Easy
Reach level 5 on Very Easy
Reach level 10 on Easy
Reach level 5 on Easy
Reach level 5 on Normal
Reach level 10 on Normal
Reach level 25 on Normal
Reach level 50 on Normal
Reach level 100 on Normal
Reach level 5 on Hard
Reach level 10 on Hard
Reach level 25 on Hard
Reach level 50 on Hard
Reach level 100 on Hard
Reach level 5 on Very Hard
Reach level 10 on Very Hard
Reach level 25 on Very Hard
Reach level 50 on Very Hard
Reach level 100 on Very Hard
Reach level 5 on Insane
Reach level 10 on Insane
Reach level 25 on Insane
Reach level 50 on Insane
Reach level 100 on Insane