Most free puzzle apps monetize your attention: an ad between puzzles, an ad for a hint, a banner crawling under the board. For a game that's entirely about concentration, that model is self-defeating. Cipher Munch has no ads at all: not "fewer," not "removable for a fee." None. The business model is puzzles: the content is what you can buy, never your attention.
Fully offline, by design
Every puzzle ships inside the app. There's no server to reach, no content to stream, no login to validate:
- Airplane mode: the entire app works, every feature, every puzzle.
- School networks: nothing to block, because nothing is requested.
- Cabins, campsites, subways: thousands of puzzles in your pocket, zero bars required.
No account, and nothing to leak
There is no sign-up because there is nothing to sign up for. The app collects no personal data, uses no third-party analytics or advertising SDKs, and does no cross-app tracking: the App Store privacy label is the short kind. It's the sort of app you can put on a child's iPad or a school device without reading anything twice. (The full details are in the privacy policy, which is refreshingly short.)
Your progress still follows you
No account doesn't mean no continuity:
Progress and stats sync through your own private iCloud: automatically, with no login, invisible even to the developer. Get a new iPhone, open the app, and your streak, stats, and solved puzzles are already there. Turn it off anytime in iOS Settings if you'd rather stay fully local.
What "free" actually means here
Every one of the twelve cipher types includes a free Starter pack: enough for genuine daily practice, not a five-puzzle teaser. You also get 10 free hints a day. When you want more volume, the upgrades are honest: buy one volume outright (a one-time purchase, yours forever), subscribe to a single cipher type, or get All Access. No energy meters, no timers, no "watch an ad to continue." You will never be interrupted mid-solve, because there is nothing in the app whose job is to interrupt you.