ThinkGrid vs ZEBRA

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/

Five houses in a row. Who keeps the zebra? ZEBRA takes Einstein's famous riddle and generates a fresh one every time — always exactly one answer, always reachable by logic alone. Read a clue, rule something out, and watch the last house fall into place. Also known as the Zebra Puzzle or Einstein's Riddle, this is the logic grid puzzle with a twist: you're not just matching pairs, you're working out the order. Left, right, next to, at the end. ◆ Exactly one answer, never a guess Every puzzle is checked by the built-in logic engine before you see it: one unique solution, reachable by deduction alone. Puzzles that fail either test are never shown. ◆ Deduce the order, not just the pairs - The ivory house is immediately to the left of the green house - Milk is drunk in the middle house - The Norwegian lives next to the blue house Combine clues like these to pin down the row, one house at a time. ◆ Features - Four sizes: 3, 4, 5 and 6 houses. Five is the size of the original riddle - The original Einstein zebra puzzle, included - A visual row of houses that fills in as you solve — roofs take their colour once you know it - A question for every puzzle, and houses that light up when you finish - Tap a clue to highlight the houses and cells it refers to; fully used clues dim automatically - Logic hints: the next square you can deduce, and the clue numbers that prove it - Daily Challenge: one shared puzzle for everyone, every day - Weekly Challenge: a new six-house puzzle every Monday - Past dailies: play any day you missed from the calendar - Ranks from Novice to Master Detective, plus nine badges - Auto-X, notes, undo, and continue where you left off - Themes: Classic, Forest, Street, Station, Harbor - Adjustable clue text size and dark mode - English and Japanese ◆ Perfect for - Anyone who has solved Einstein's riddle on paper and wants more - Fans of logic grid puzzles, sudoku and brain teasers looking for something deeper - Players who'd rather learn how to think through a puzzle than be told the answer - A quiet, offline brain game for commutes and flights ◆ Privacy - Puzzles are generated on your device — no connection needed to play - No account, no sign-in - Your records stay on your device - No third-party ads. To introduce the developer's other apps, ZEBRA may load public App Store information (no personal data is sent)