Infinite Numbers vs Tektologic

∞ Numbers is a quiet offline game about integer sequences. Guess integer sequences drawn from the On-Line Encyclopedia of Integer Sequences (OEIS). Your job is to guess the next number. How it plays. Tap a row, look at the first few terms, type your guess on the numpad. When you've had enough, tap Reveal to see the real name of the sequence and references to OEIS and Wikipedia. Made for calm play. No ads. No accounts. No in-app purchases. No ranking or leaderboards. The app never touches the network after install — every sequence is bundled with the app, and the only "internet" is the moment you tap a reference link to open a browser. Designed to disappear. No analytics, no notifications, no permission prompts. Nothing asks for your location, contacts, microphone, camera, or anything else. The only data stored anywhere is the in-progress state of your own game, kept locally on your device. You can wipe it any time from iOS Settings. For who. Math hobbyists, puzzle fans, kids and parents looking for a screen-time option that isn't loud, and anyone who's ever read an OEIS page for fun. Sequence data from the On-Line Encyclopedia of Integer Sequences (oeis.org), CC BY-NC 4.0.

A pure logic game. No ads, no subscription, no connection. Just grids that yield to reasoning. Tektologic is Suguru — also known as Tectonic. ■ 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 — 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. ■ WHAT YOU GET → 350 grids across 7 tiers, from Discovery to Legend → An interactive tutorial that teaches the rule by playing → Hints that explain the deduction instead of handing you the answer → Pencil notes, undo, error detection → 9 themes, 6 fonts including OpenDyslexic and Andika → Stats, streaks and Game Center leaderboards ■ 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. ■ 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.