Cracking the Cryptic iOS Sudoku App
The fellas from the Cracking the Cryptic Youtube channel have released an iOS app containing tons of brilliant hand-crafted puzzles. There are several included for free and each one is a treat. If you’re interested in variant sudoku, or think you might be, I’d highly recommend it!
https://apps.apple.com/us/app/cracking-the-cryptic/id1629992934