Two bees is a pretty simple app. You race two bees. 
It is pretty difficult, which is what makes a game fun. I just think that there should be several “modes“, where you can just control one bee and the other is automatically conrolled, or with other players. 
There are many ads. A free app needs some money, but any VIP option or a way to monthy pay for no ads would also be a good solution. 
There isn’t much to do. You can get bored after a while easily, so that is an issue to look further into.
3 stars!