I'm a fan of Simon Tatham's Portable Puzzle Collection[2] and the list of No-Bullshit Games by Stavros[3] (thanks!) - this app is my small contribution.
While building this I prioritized UX/QOL. You can drag to select, there's undo and redo, you can switch between filling cells or flagging cells as empty, etc. I hope the result is pleasant to use and fun.
I'd love to learn what you like about the app or whether you'd improve anything - this will help me plan future updates.
Check it out and tell me what you think: https://apps.apple.com/pl/app/nonoverse-nonogram-puzzles/id6...
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[1]: https://en.wikipedia.org/wiki/Nonogram