Riddlin
Challenge your mind with 600 riddles across mystery, lateral thinking, and wordplay categories—complete daily challenges, compete in expert tournaments, and craft your own puzzles.
Download Riddlin
Challenge your mind with 600 riddles across mystery, lateral thinking, and wordplay categories—complete daily challenges, compete in expert tournaments, and craft your own puzzles.
Download RiddlinBonuses available for new downloads only. Terms apply. Riddlin is free with optional in-app purchases.
Riddlin transforms idle screen time into concentrated mental training by delivering structured riddle-solving experiences across three core categories. The app surfaces one daily challenge at midnight, algorithmically selected to maintain progressive difficulty curves based on your vault history.
Practice mode randomizes riddles from the entire 600-puzzle library every time you tap refresh, ensuring you never encounter repetitive patterns. Tournament mode activates a 5-card expert challenge where advanced lateral thinking riddles test your ability to solve under timed pressure without hint assistance.
The vault system archives every riddle interaction—solved puzzles unlock related recommendations, skipped ones reappear in modified forms, and custom compositions integrate into shareable deep links. This layered architecture turns casual puzzle-solving into measurable cognitive skill development.
Fresh puzzle delivered every midnight with category tags and difficulty ratings. Track your solve streak and compare completion times with the global leaderboard.
Navigate the complete riddle catalog filtered by category, difficulty, or custom tags. Each entry displays preview text and unlocked status based on vault progression.
Tap to randomize a new puzzle from unsolved inventory. No limits on shuffles—keep refreshing until you find a riddle that matches your current focus level.
Five consecutive expert-level riddles with no hints and timed scoring. Complete all five to earn tournament badges and unlock exclusive authoring features.
Automatic categorization of solved, skipped, and custom riddles. Review past attempts, analyze hint usage patterns, and revisit tricky puzzles for mastery.
Write your own riddles with title, category, difficulty, and multi-tier hints. Share creations as deep links that open directly in Riddlin for friends to solve.
Riddlin was crafted by puzzle designers who recognized the need for structured brain training that feels more like entertainment than education. The team curated 600 riddles from classic logic puzzles, modern lateral thinking challenges, and original wordplay compositions to ensure variety across skill levels. The app architecture prioritizes offline access—all riddles download on install, so you can solve anywhere without connectivity. Updated October 2026 with tournament mode and custom authoring tools.
Android platform · Free download with optional vault expansion · Instant offline access
Download RiddlinLast updated 16.10.2026 · Requires Android 5.0+ · Contains optional in-app purchases · Suitable for ages 12+