What do I use coins for? MiniMega Nerida May 13, 2016 04:08 Updated Follow There are a number of puzzle packs that can be purchased using coins.Coins can also be used to buy hints. Related articles Can I disable video ads? I no longer get offered free hints. I'm offended by one of the puzzles. Known issues for the latest version (v2.9.9) I bought a puzzle pack but it didn't appear. Comments 0 comments Article is closed for comments.