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