Logic Arcade vs ThinkerLoop

Eight classic math and logic puzzles in one app. No ads. No accounts. Just puzzles. GAMES INCLUDED: - Water Jugs — Measure a target volume by filling, emptying, and pouring between jugs. Based on Bezout's identity and the Extended Euclidean Algorithm. - Tower of Hanoi — Move stacked disks between rods without placing a larger disk on a smaller one. Includes the classic 3-rod puzzle and the 4-peg Frame-Stewart variant with a custom sandbox mode. - Sliding Puzzle — Arrange numbered tiles in order on grids from 3x3 to 6x6. The original 15-puzzle, popularized in the 1880s. - Lights Out — Toggle lights on a grid where each press flips neighboring lights. Rooted in linear algebra over GF(2). - Knight's Tour — Guide a chess knight to visit every square exactly once. Studied by Euler, solved by Warnsdorff's heuristic. - Egyptian Fractions — Decompose fractions into sums of distinct unit fractions. Features authentic hieroglyphic numeral display. - Turntables — Rotate interlocking rings to arrange colored tokens. A physical model of permutation groups and Hungarian Rings. - River Crossing — Ferry the wolf, the goat and the cabbage (and later wolves, sheep, oxen and a sheepdog) across the river without anyone getting eaten. Alcuin's 1,200-year-old puzzle and the missionaries-and-cannibals problem. FEATURES: - Up to 40+ hand-crafted campaign levels per game - Chapter-based progression with increasing difficulty - Auto-save and resume — pick up right where you left off - "The Math" — brief explainers on the theorem behind each game - Personal best tracking for moves and time - Free Play / Random mode for 5 games + custom sandbox for Tower of Hanoi and Knight's Tour (Pro) - Works completely offline - No ads. No tracking. No data collected. UNLOCK FULL GAME: Chapter 1 of every game is completely free. Unlock the full game with a single one-time purchase to get chapters 2-4 across all 8 games, Free Play mode (with chapter 1 Random unlockable for free by beating the chapter), custom sandbox modes for Tower of Hanoi and Knight's Tour, and all future content.

ThinkerLoop is a premium brain-training playground — 33+ puzzle archetypes across six cognitive zones, with a fresh Daily Series every day and an educational breakdown after every solve. WHAT YOU'LL PLAY • Daily Series — Queens, Zip, Wend, and Pinpoint, LinkedIn-style logic puzzles with a new board every day • Six cognitive zones — Logic & Language, Spatial & Pattern, Quantitative & Math, Memory & Focus, Abstract Frameworks, and more • Speed Challenges — solve against the clock for Bronze, Silver, and Gold medals, server-verified so every leaderboard time is real WHY IT'S DIFFERENT Every solve ends with an Intellect Core: a short, honest breakdown of the cognitive rule or trick behind the puzzle — so you leave with an insight, not just a score. STAY MOTIVATED • Daily streaks and stars carry across every puzzle you solve • Global, weekly, monthly, and friends leaderboards for every Speed Challenge • Add friends and compare times head-to-head PLAY YOUR WAY Sign in with Google or Apple to sync your progress, or jump straight in as a guest — no account required to start playing. Free forever, supported by unobtrusive advertising. No paywalls, no premium tiers, no pressure.