The Half Moon Solitaire app
In brief
Available on the App Store (iPhone and iPad) and on Google Play (Android). The app is played in landscape orientation, with a score, a code for each game and the option to undo the last 100 moves.
Where to download it
| Platform | Listing |
|---|---|
| iPhone and iPad (App Store) | View on App Store (new tab) |
| Android (Google Play) | View on Google Play (new tab) |
Links checked on October 30, 2026. The app is not available as a desktop version.
What the app does
- Half Moon: 2 decks, 12 piles of 8 cards arranged in an arc, 8 reserve cards, pairs adding up to 11 and Jack–Queen–King triples.
- Score: 10 per pair, 15 per triple, 520 for a won game; time and moves are tracked separately.
- Game code: each deal has a code (for example, HM1-N-AAAAAAB) that you can copy, paste, or enter to replay the same deal or share it with someone.
- Undo the last 100 moves; the points from the undone move are deducted.
- Adjustable playing aids: dim cards that do not match the selected card, explain taps that remove nothing, and pinch to zoom.
- End of game: the app recognizes wins and dead ends, and keeps statistics and a ranking of the best games.
- Appearance: 4 table cloths (sage green, slate, plum, sand), your choice of card backs, light or dark theme; 36 languages.
Phone and tablet
The images below are screenshots of the current app, at each screen's size. The game shown is played by the app's engine using a fixed deal from its tests, which has no game code.
In pictures
