I was having trouble finding a Klondike game for iOS that didn’t constantly shoot ads into your eyes, or even more egregious things like request your location (yeah, right), so I made one.
It’s no-frills and kinda crummy, but it’s my first game and hits the main points of what I wanted (no ads, no data collection, also no sound.)
It’s called Zen Klondike:
https://apps.apple.com/us/app/zachuma-australian-edition/id1508454994
I also wrote an article (tangentially) about it on LinkedIn:
https://www.linkedin.com/pulse/i-learned-new-skill-matt-janulewicz