Archived App (Last seen on 9 Jul 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
Letter Sleuth is the cryptogram puzzle that gets sharper the more you play.
Decode famous quotes one letter at a time. Each number hides a letter — when you crack one cipher, you've solved one tile. From philosophers to pop hits, every puzzle hides a piece of human wisdom.
WHY PEOPLE LOVE LETTER SLEUTH
• 200+ hand-picked quotes from history's greatest minds
• Daily challenges that push your brain a little further
• Milestone celebrations at 5, 10, 25, 50, 100 puzzles
• Watch your puzzle IQ climb from 100 toward 170
• Easy hint system — stuck? Tap HINT and pick what to reveal
• Beautiful paper-style design with warm, calm colors
• No timers, no pressure — solve at your own pace
HOW IT WORKS
1. Each puzzle shows a famous quote with most letters replaced by numbers
2. Tap a blank, then tap a letter on the keyboard
3. Cracked a cipher? The green keyboard tracks your progress
4. Solve the whole quote to unlock the author and wisdom
FEATURES
• 200+ wisdom quotes, song lyrics, movie lines
• Daily streak rewards and brilliance chest progression
• Three lives per level with rewarded-ad revive option
• Profile with stats, achievements, IQ score, 48 emoji avatars
• Larger fonts throughout for easy reading
• Free to play, with optional Remove Ads
PERFECT FOR
• Crossword and word-search fans looking for something fresh
• Anyone who loves wisdom quotes
• Daily brain training enthusiasts
• Coffee-break players who want a quick mental workout
Letter Sleuth is calm, never frantic. Pick it up for 5 minutes, solve a puzzle, learn a quote. Your brain will thank you.
Made with care by Almond Party Labs.
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What's New in Letter Sleuth
1.0.2
June 18, 2026
-Bug fixes and performance improvements.





