Binairo vs Casellina

Binairo is a clean binary puzzle and 0-1 logic game for quick daily brain training. Fill the grid with zeros and ones, keep each row and column balanced, avoid triples, and solve by deduction instead of guessing. Play the daily challenge, continue through curated levels, use undo and hints when needed, and compare your times on Game Center leaderboards. The interface is calm, fast, and built with VoiceOver support for accessible play. Start with the free puzzles, then unlock the full premium library when you want more handcrafted binary grids.

Casellina brings together fifteen logic and card games, made with care. No ads, no lives to lose, no account. One square at a time; logic does the rest. NINE GRID PUZZLES • Quadretto: sudoku, plus the 6 × 6 Mini. • Pareggio: takuzu, the binary puzzle, classic or with signs. • Stelletta: place the stars, one or two in every row, column and region. • Addendo: kakuro, cross sums. • Ponticello: hashi, bridges between islands. • Toppetta: shikaku, cut the grid into rectangles. • Filino: a numbered path through every square. • Incastro: crossword sums, four grids a day. • Bandierina: mine-clearing where you never have to guess. MAZZETTO, FIVE SOLITAIRE GAMES Klondike, Spider, FreeCell, Pyramid and TriPeaks, with their classic rules: draw 1 or 3, one to four suits, FreeCell's numbered deals. If you like, only deals known to be winnable. THE STUDIOLO, OUR ORIGINAL GAMES • Pennellino: three brushes, red, yellow and blue, paint the whole grid; where they cross, their colours mix. A brand-new puzzle, invented at Nidello. PLAY ANYWHERE, OFFLINE No connection needed: on a plane, abroad without data, on the subway or at the cabin, everything works. The grids, the deals, the daily challenges and the hints all live on your device. A DAILY CHALLENGE FOR EVERY GAME Every day, a new challenge in every game, the same for everyone. Gentle on Monday, tough on Sunday. The home screen shows where you stand, game by game, and sharing your time takes one tap. HONEST LEVELS Every grid has exactly one solution, reached by logic alone: never a guess. It is rated by the hardest technique it truly needs, and the app names it. HINTS THAT HELP Stuck? The hint shows the square to play right away, and why. A techniques guide, with real grids, comes with every grid puzzle. • Unlimited undo, check when you like or as you play • Statistics for each game • iPhone and iPad • Your games synced through your own iCloud, on all your devices • VoiceOver and Dynamic Type • Thirteen languages The free version includes every game in full: every level, hints, and every daily challenge, free forever. It limits the number of free games each day, across all games. Casellina Pro removes the limit in every game, now and to come, with a single purchase, no subscription, shared with your family. It also adds detailed statistics and every colour theme. No account, no tracking.