Word Match Puzzle! from Phatfingers.
In this game I faced a big challenge which still haunts me this day. We needed a way to sort the cards automatically based on different difficulties. I struggle to find a good way to do this and ended up many times with levels way too easy (when they were supposed to be hard) or impossible levels!
Definitely not one of my proudest moments, hehe.
Word Match Puzzle! is available for Android and iOS.
Android: https://play.google.com/store/apps/details?id=com.phatfingers.wordscramble&pcampaignid=web_share
iOS: https://apps.apple.com/us/app/word-match-puzzle/id6446033178