01 / YOUR HAND
Nine cards.
One clear view.
Scan your hand or choose a photo. The large shutter stays usable even with moving hands. Check and correct the recognised cards.
Your companion at the Jass table
Show me
your hand.
Nine cards. So many possibilities.
Discover what your hand can do.
JassMind is your Jass app for iOS and Android. Play full rounds with a coach, compare calls and keep score at the real Jass table.
Explore strategyAvailable now
Available now
For iOS & Android · No account needed
Your hand. Your next move.
At home at the table.Works offlineNo accountFour languagesSwiss-German & French cardsSwiss Jass
Try it yourself
Explore the app.
Click by click.
Take a look around JassMind at your own pace. Click the highlighted areas or “Next screen” to move through the pictures.
This is an example you can click through, not the actual app yet. The pictures show prepared results. The buttons take you to more pictures; they do not calculate anything or count points.
The actual app with all its functions is now available on the App Store and Google Play. We keep improving it, so it may look different or offer more than this example.
The actual app — now for iOS and Android →Strategy home
The current Strategy area with game variant, card scanning and manual entry. The demo opens a prepared sample hand.
App screens in German with sample data.
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German-Swiss cards
From the first hand to the last trick
Less guessing.
More Jass.
An app for the questions that matter at the Jass table.
Nine cards.
02 / YOUR CALL
Trump?
Or pass to your partner?
Choose forehand or “Partner has pushed” in Schieber. Compare expected point leads and simulated card majorities. An opening card is suggested when you are the opening player.
03 / YOUR PRACTICE
Your game.
A coach by your side.
Practise all eight supported Jass variants with freshly shuffled cards against computer players. Tap the question mark to ask the coach and learn from your round review.
04 / YOUR GAME
Keep the slate.
Go digital with the chalk.
Count won cards with the camera. Track points, melds and Stöck on your slate, with your target score and multipliers.
Swiss-German or French cards
Your hand.
Your cards.
JassMind shows AGMüller’s official Jass cards, with Swiss-German or French suits. Choose your deck in Settings: card images, suit names and card recognition follow your choice.
SWISS-GERMAN CARDSDefault
Roses, Bells,
Shields, Acorns.
The classic deck of German-speaking Switzerland, with Under, Ober and Banner.
FRENCH CARDS
Hearts, Diamonds,
Spades, Clubs.
For everyone who plays Jass with French cards. The app names suits and cards just as they appear in your hand.
A big thank you to AGMüller for providing the official Jass card graphics we may use in JassMind.
One hand. The whole strategy.
Take a closer look
at the recommendation.
From reviewing your hand to comparing alternatives: follow one example step by step. Open the real app screens at full size.
App screens in German with sample data.
Step 1 of 8: Review your hand
Your nine cards. Where every strategy begins.
After a scan or photo, JassMind shows your recognised hand. Check the cards, then calculate the recommendation.
- Check cards and choose your calling position
- Tap and replace an incorrect card
- Choose “Calculate recommendation” to analyse
The demo starts after recognition and uses the same sample hand throughout.
Several popular Jass variants.
What help is available for your Jass game?
Choose your variant before analysing. JassMind remembers your choice on your device. Available features depend on the variant.
Strategy and scoring
Schieber
Compare allowed contracts and choose whether pushing is an option. The score sheet tracks your game with targets, multipliers, declarations and Stöck.
Strategy and scoring
Coiffeur
Compare remaining fields and jokers with your chosen factor table. Your Coiffeur sheet keeps eight or ten fields for each team.
Strategy and scoring
Differenzler
Get a points announcement for the known trump or compare all four suits. Record announcements and results: the app scores the difference and your agreed exact-hit bonus.
Strategy and scoring
Sidi Barrani
Include previous bids when estimating your next bid. Your score sheet handles bids, card points, Weis and counters; the simulation assumes conventional bidding.
Strategy and scoring
Pandur
Enter eight cards and analyse your hand for a game with two or three active players, including awarded Weis and Stöck. With two players, eight cards stay in stock. Scoring supports two to four players.
Strategy and scoring
Guggitaler
Play with three or four people: five negative and five positive rounds, or a final Domino round. Strategy compares openings for the current scoring rule; the sheet keeps your points.
Strategy and scoring
Molotow
Three to six people play individually. Simulation accounts for trump established during play, hand Weis, table Weis and Stöck. The score sheet applies your selected rules.
Strategy and scoring
Two-player Schieber
Play with two stacks of nine cards each per player. Compare allowed calls for your stack and keep both players’ points up to the agreed target.
Additional contracts
Obenabe and Undenufe, plus Slalom, Guschti, Mary and Mitte complement the trump suits. You choose which contracts are allowed in Schieber.
Hand analysis estimates unknown cards through simulation. In Play, practise all eight supported Jass variants against computers. Card counts and play depend on the variant. House rules may differ; Handjass and Bieter are not supported yet.
Six areas. Your Jass at a glance.
Your game.
Your settings.
Strategy analyses your hand. Scoreboard tracks your real games. Play offers full practice rounds with a coach. Add quizzes, chat and settings.
App screens in German with sample data.
Scoreboard
From the first round
to the final point.
Start a game, count cards or save a final result from your physical scoreboard. Local statistics show how your games turned out.
Full-size scores menu ↗ (new tab)
Set up your game
Choose your teams and target score, then agree on game variants and multipliers.
See final results and statistics
Games played on a physical scoreboard can count towards your statistics too. Save only the final result when the game has not already been recorded in the app.
Play
Learn to play Jass.
Trick by trick.
Choose one of the eight supported Jass variants and play a practice deal against computers. Card counts and play depend on the variant. Ask your coach for help with the call or next card.
Full-size practice menu ↗ (new tab)
See the coach and round review
Quiz
Practise with your hand.
100 exercises each for Schieber, Differenzler and Coiffeur. Choose an answer, retry if needed and see the explanation and score comparison.
Full-size quiz preview ↗ (new tab)See an exercise and its explanation
A real Schieber quiz example, showing the same hand before and after the answer.
Chat
Your question. Your Jass knowledge.
Rules, tactics or Jass culture: ask the local Jass chat. AI generates answers on your device. With AI off, the closest matching pre-written answer is shown; it may fit your question less well.
Full-size chat preview ↗ (new tab)Answers can be wrong. Continue to agree on important rules with your Jass group.
Settings
Make it
yours.
Choose analysis depth and deck, manage the optional AI explanation and control your history and language.
Open full-size Settings ↗ (new tab)
See history, language and app info
Saved hands stay on your device. Below you’ll find the language options, app version and developer details.
Made for the Jass table
Your game.
Your device.
Your business.
Even without a signal.
Card recognition, simulation and the slate run on your device. Ready for the next round, wherever you play.
Just start playing.
No account, no login. Saved hands and games stay on your device. Card photos are not saved in your history.
Understand the reasoning.
Optional local AI explains the recommendation in words. After a one-time model download, it works offline on supported devices.
One more round of questions
Good to know.
What does the one-time purchase include?
All features and app updates are included in the one-time purchase. There are no subscriptions, additional in-app purchases or ads. Optional AI is included too; it needs a supported device and a model download.
Can I play a full round in the app?
Yes. In Play, practise all eight supported Jass variants against computers and review the deal afterwards. Practice covers one deal rather than a complete match. Sidi Barrani and Pandur start at the final bid, without a full auction.
What do the percentage and point lead mean?
Expected point lead is your average score minus the opponents’ score, including multipliers and enabled bonuses. It determines the order. The percentage counts rounds with at least 79 card points, excluding those additions. A more frequent card majority therefore does not always mean a larger point lead.
Must I hold the cards completely still when scanning?
The large shutter stays available with hand movement once the camera is ready. Focus guidance helps without blocking a photo. You can switch off the scan light. Check the recognised cards; covered ranks, strong reflections and blur can make recognition harder.
Which cards and game variants does JassMind support?
JassMind supports official German-Swiss and French AGMüller Jass cards. Strategy and scorekeeping cover Schieber, Coiffeur, Differenzler, Sidi Barrani, Pandur, Guggitaler, Molotow and two-player Schieber. The variant overview explains the rules and scope for each.
Do I need internet to use JassMind?
Card recognition, strategy, practice rounds, scores, statistics, quizzes and reference chat work offline. App updates, optional model downloads and voluntary reports use the internet. Game features remain available without a model.
Does the recommended call guarantee a win?
No. JassMind compares simulated deals of the remaining cards. It helps you assess your hand, but does not know the other players’ cards or the game’s outcome.
When can I download the app?
JassMind is now available for iOS on the App Store and for Android on Google Play. Use the store badges on this page to go directly to the app.
Which languages does the app support?
English, German, French and Italian. Choose your language in Settings.
Get more from your next Jass game
Ready for your
next hand?
JassMind. Now for iOS and Android.
Pay once. Everything included.
All features and app updates included. No subscription. No in-app purchases. No ads.
Available now
Available now