ThinkGrid vs Lightkeeper

Eleven logic puzzles in one app. No ads, no timers, no energy bars — just a grid and the part of your brain that likes being asked something. THE PUZZLES Suguru — fill each cage with unique numbers Star Battle — place stars so no two touch Masyu — loop through black and white pearls Nonogram — reveal the picture from row and column clues Color Link — connect matching colors and cover the board Hashi — connect islands with bridges Light Up — place bulbs to light every white cell Kakuro — fill runs with digits that sum to each clue Fillomino — fill the grid so each number group has the right size Tents — pitch a tent next to every tree Bomb Digger — deduce where every mine is hidden Every puzzle is generated with a unique solution and is solvable by logic alone. You never have to guess. A NEW DAILY IN EVERY GAME Eleven daily puzzles, one per game, every day. Keep a streak, track which games you return to, and see your solving habits build up over the months. SIX DIFFICULTIES Easy, Medium, Hard, Expert, Master, Grandmaster. Easy is a coffee break. Grandmaster is not. LEARN ANY OF THEM Each game has a step-by-step guide that plays out on a real board, one move at a time, explaining why each move is the only one that works. No prior knowledge needed for any of the eleven. NO ADS, EVER The free tier is complete: every game, every daily, four difficulty tiers. There is no advertising anywhere in ThinkGrid and there never will be. THINKGRID PLUS For players who want the deep end: - Master and Grandmaster difficulty across every game - Daily archive — replay any past daily, back to launch - Seven extra themes: Paper, Midnight, Dusk, OLED, Blossom, Cobalt and Aurora - Solving insights: heatmaps, technique breakdowns, a monthly summary Yearly with a 7-day free trial, or a one-time payment for lifetime access. After the 7-day free trial, payment is charged to your Apple ID account. The yearly subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Manage or cancel it in your App Store account settings. Available in English, Dutch and Spanish. Your progress stays on your device, and you can back it up and restore it yourself. Privacy policy: https://deappmakers.nl/legal/thinkgrid-privacy/ Terms of use: https://deappmakers.nl/legal/thinkgrid-terms/

The lighthouse has gone dark, and the keeper has forgotten what it looked like. Every picture you solve is a memory it gets back. Lightkeeper is a nonogram — a picture cross puzzle, also called picross, hanjie or a Japanese crossword. The numbers along each row and column tell you how many squares to fill. Work out which ones, and a picture appears. NEVER GUESS All 500 puzzles are checked by a solver before they ship. Each has exactly one answer, and that answer can always be reached by logic alone. If you are stuck, there is something left to work out — not something left to gamble on. A TOWER THAT LIGHTS UP Puzzles are not a list. They are five floors of a lighthouse: the Lamp Room, the Keeper's Door, the Watch Room, the Winding Stair and the Lantern. Finish a floor and its windows come on for good. EVERY PICTURE IS KEPT Solved pictures go to the gallery, where you can look back at the whole collection. A PUZZLE EVERY DAY A new one each morning, the same for everyone, marked off on a calendar. MADE TO BE PLAYED ANYWHERE Plays fully offline. Portrait, one hand, on iPhone and iPad. Light and night themes. Drag to fill, pinch to zoom on the big grids, and cross out settled lines automatically if you want the help. FOR PLAYERS WHO LIKE Nonograms, picross, griddlers, hanjie, pic-a-pix, paint by numbers, logic puzzles, pixel art, and a quiet game to end the day with. Free to play. Optional hints and an ad-free purchase.