Tektologic is a clean, brilliantly designed puzzle game that will captivate Sudoku enthusiasts looking for a fresh challenge. The rules are elegant in their simplicity, yet harder boards offer incredible depth and mental satisfaction.
The distraction-free UI design makes it one of the purest logic puzzle apps available.
Sometimes you just want a pure logic puzzle that doesn't bombard you with flashy animations, distracting pop-ups, or microtransactions every thirty seconds. At forty years old, I appreciate a clean intellectual challenge where success depends entirely on your own deductive reasoning rather than twitch reflexes or luck. Tektologic Logic Puzzle strips away all the modern mobile fluff and presents straightforward grid-based deduction challenges.
The absence of timers means you can sit back, analyze the rules, and actually think through solutions at your own pace, which is a rare luxury in mobile gaming today. My only real critique is that the presentation is bone-dryβthere is almost zero artistic flair, music, or thematic flavor to make the grids feel distinct from one another. It's strictly brain exercise without the entertainment dressing, but puzzle purists who enjoy pure deduction will find plenty to respect here.
Performance: Flawless stability with instant grid response times and zero technical bugs.
Buy if: You love pure deductive logic puzzles, grid challenges, and unhurried brain teasers.
Skip if: You require vibrant visuals, immersive storytelling, or lively audiovisual presentation.
Available on: Mac, iPhone, iPad
Version 1.0.2Thu Aug 13 2026
New: discover Serialogic, our new sorting and logic game, along with our other games directly from Settings and the level list. Their App Store pages open inside the app without interrupting your game. This version also includes several stability improvements.
Requires iOSΒ 17.0 or later. Compatible with iPhone, iPad, and iPodΒ touch.350 pure deduction grids. No ads, no subscription, no connection.
A pure logic game. No ads, no subscription, no connection. Just grids that yield to reasoning.
Tektologic is Suguru β also known as Tectonic.
β THE RULE
The grid is cut into irregular blocks of 1 to 5 cells. A block of N cells holds the digits 1 to N, once each.
Two neighbouring cells never carry the same digit β and neighbours include diagonals.
That's all. There is no row or column constraint: two 1s can share a row, as long as they don't touch. That is what sets Tektologic apart from sudoku.
Every grid has one unique solution, reachable by deduction. Never by guessing.
β WHAT YOU GET
β 350 grids across 7 tiers, from Discovery to Legend
β An interactive tutorial that teaches the rule by playing
β Hints that explain the deduction instead of handing you the answer
β Pencil notes, undo, error detection
β 9 themes, 6 fonts including OpenDyslexic and Andika
β Stats, streaks and Game Center leaderboards
β BUILT TO BE READ
Six fonts to choose from, two designed for dyslexia. Nine themes in light and dark. A colour-blind mode. Everything adjusts.
β OFFLINE, FOREVER
No connection required. No account. No data collected. The first 100 grids are free; a single purchase unlocks the other 250, for life.
iPhone, iPad and Mac.










Tektologic: Logic Puzzle brings pure, satisfying numerical logic to your mobile device. Inspired by classic Suguru and Tectonic puzzles, your goal is to fill outlined board regions with numbers 1 through N without matching numbers touchingβeven diagonally. Featuring handcrafted levels from beginner to expert, itβs the ultimate daily brain workout.
Thousands of logic levels across multiple grid sizes.
Clean, minimalist interface with night mode options.
Daily puzzle challenges with streak rewards.
Always fill single-cell outline blocks with the number 1 first. Then examine 2-cell regions to eliminate adjacent touching digits.
Official Apple App Store page for Tektologic Logic Puzzle.
Tap grid cells to input candidate numbers, utilizing automatic error-checking or pencil notes to solve complex boards.
No math calculations are needed; puzzles rely purely on visual logic and spatial deduction.