We recommand this app for these guys.
- Someone who start to study times table for schoolchildren.
- Someone who studies hard and gets a headache.
- Someone who studied too much and wants to rest thier head.
- A college student who is tired of studying for a difficult major and wants to take a breather.
- Someone who have nothing to do but want to activate thier brain.
- An office worker who wants to make a coffee bet.
- Parent with elementary school children.
- Elderly people looking for dementia prevention measures.