Hey Product Hunt! 👋 I'm the maker of Calm Sudoku, and I built it because every Sudoku app I tried felt like it was fighting me for attention — ads between puzzles, streak counters shaming me, "limited time" banners, accounts for a number grid. Calm Sudoku is the opposite bet: what if a puzzle app just… left you alone? What's free, forever: 🗓️ A daily puzzle — deterministically picked from the full catalog, so free players get a taste of everything 📚 A 30-puzzle starter library (10 each of Easy, Moderate, Challenging) 🎮 Every single gameplay feature — notes with smart peer cleanup, undo, conflict highlighting, check, reveal, autocheck, fill-all-notes, a reactive number pad with remaining counts. We gate quantity of puzzles, never quality of play. The one purchase: 💎 $4.99, one time, lifetime. Unlocks the full 300-puzzle library, a 90-day daily archive, and all future puzzles. Family Sharing enabled. No subscription will ever exist. What will never be in the app: ❌ Ads, tracking, or analytics ❌ Accounts or sign-ins ❌ Lives, currencies, countdowns, or streak pressure (streaks exist only as quiet history stats) ❌ Notification nagging Nerdy bits, because PH loves nerdy bits 🤓 - 100% offline - single solution guaranteed, difficulty rated by the actual human techniques required - Native SwiftUI on iOS 18+, SwiftData persistence, StoreKit 2 — no backend of any kind - Your game auto-saves continuously, so closing the app mid-puzzle just works - Accessibility is a feature, not a checkbox: VoiceOver, Dynamic Type, Reduce Motion (which gates all celebratory motion and haptics), hardware keyboard support, full light/dark, adaptive iPhone/iPad layouts The design goal was a warm, paper-like calm — muted colors, spacious controls, restrained motion. The board is dominant; everything else stays quiet. I'd genuinely love your feedback — especially from folks who've abandoned puzzle apps because of monetization fatigue. What would make this your forever Sudoku app? Thanks for checking it out! 🙏

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Promoted

Maker

📌

1d ago

Love the no-nonsense approach here, paid once and done is exactly what I want from a puzzle app. One thing that would make the daily habit stick for me is a gentle "notes" mode for jotting down candidate numbers in each cell, just pencil marks without auto-checking, since I've been craving a true pen-and-paper feel without distractions.

12h ago

Calm Sudoku

Sudoku without the noise. No ads, no accounts, no pressure.

Sudoku without the noise. No ads, no accounts, no pressure.