A daily game built for a client, where words are formed in a letter grid by linking tiles in any direction. The main requirement was to work without a network: a round must not depend on connectivity.
Puzzles arrive encrypted from a purpose-built API; the archive, statistics and progress live on the device. Hints and a word of the day, RevenueCat subscriptions, AdMob banners. I delivered the whole thing; it never reached the stores, for reasons outside my control.
The full write-up is still being written — this is the short version for now. Happy to walk you through the details.