Cost to use boosters – Number Connect - Puzzle Review

I like this game but it would be nice to have a bigger board. Also, doubling the cost to use a booster each time it’s used is a little much. Maybe start with adding 10 stars needed for a booster and then up that by 10 each time it’s used until number of stars needed is doubled.
Review by Leese1105 on Number Connect - Puzzle.