There is one thing that should be mentioned in the post, economy, yes ActiFit pays for the user to do daily activity, but the value must come from somewhere, there are people buying and people selling, when the buyers are more than the sellers the price rises, it's not just "create a token to go to the toilet and get rewarded" there needs to be a system in place for the token to increase in value (staking, buybacks, dividends, store items, use cases, partnerships, etc...), because if there are no systems and the economy of the token is screwed, that token will lose value day after day until it's worthless, ActiFit actually has a goodish economy system which I've discovered from speaking with @mcfarhat, but there will be other tokens that won't have a good economy basis or legs to stand on...
What am I saying with this... Do your own research, look into the economy of a token, think about the ways that token could gain and lose value, do the math! There needs to be systems in place because if there are non, the tokens are literally worthless...