About this app
Every puzzle is a real quotation written in a secret code — every letter of the alphabet swapped for another. Crack it one letter at a time and watch the words come through. • 160 quotations across four difficulty levels, from short sayings to full passages • Every author is a classic voice — Shakespeare, Franklin, Dickinson, Marcus Aurelius, Twain — and every quotation is in the public domain • Tap a coded letter, type your guess, and it fills in everywhere at once • Conflicting guesses turn red so you always know where you stand • Three hints per puzzle when you're truly stuck • The author is revealed when you solve — no spoilers before WHY CRYPTOGRAMS? They're the thinking person's word puzzle. Short words, doubled letters, and apostrophes give you a foothold; frequency and pattern do the rest. No vocabulary tricks, no obscure words — just honest deduction. NO ADS. NO SUBSCRIPTION. NO ACCOUNT. Vellum is a one-time purchase. No ads between puzzles, no daily limit, nothing to sign up for. It works completely offline. PRIVATE BY DESIGN Your progress stays on your device. Vellum has no analytics SDKs, no tracking, and no network features at all. Made for iPhone and iPad, with full VoiceOver support and Dynamic Type. Terms of Use: https://www.myworkingmemory.ai/vellum-terms.html Privacy Policy: https://www.myworkingmemory.ai/vellum-privacy.html
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 23, 2026 · 9:51 AM $0.99
Screenshots
