I love Iodoku!
Final an app that turns my boredom into brilliance! Smooth design, smart hints, and just the right level of challenge. My brain has never been happier!
Free
In-App PurchasesWith Ads
About
This intelligent Sudoku app adapts to your skill level with AI-powered puzzles and a personal coach. Learn advanced techniques, track your progress, and enjoy a clean, customizable interface. Offers both free and premium experiences.
✓9 Difficulty Levels
✓AI-Powered Puzzle Generation
✓Personal AI Coach
✓Adaptive Difficulty
✓Interactive Tutorial
✓Detailed Statistics
✓Customizable Themes
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What's New in Iodoku
2.5.1
August 6, 2026
Iodoku is now faster, smarter, and more personal. • Learn the efficient input system with a new speed lesson • Revisit your actual solve and resume your train of thought • Get progressive hints that teach without giving everything away • Enjoy instant, carefully validated puzzles at every difficulty • Discover curated editorial puzzles and challenges • Continue seamlessly across sessions and share your achievements • Solve from start to finish with an improved VoiceOver experience • Enjoy additional refinements, accessibility improvements, and bug fixes
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In-App Purchases
$9.99
Premium Lifetime
Iodoku Premium Lifetime
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FAQ
Does Iodoku have ads?
Yes, the free version of Iodoku contains advertisements. Users can remove ads by subscribing to the Premium version.
What are the subscription options for Iodoku?
Iodoku offers Premium Monthly for $0.99/month, Premium Yearly for $9.99/year (saving 17%), and a one-time Premium Lifetime purchase for $14.99.
Can I try Iodoku before subscribing to Premium?
Yes, the free version of Iodoku provides full feature access, including all 9 difficulty levels and the complete tutorial system, allowing you to try it before upgrading.
How does Iodoku's adaptive difficulty work?
Iodoku features adaptive difficulty, meaning the puzzles are designed to grow with your skills. The AI calibrates challenges to perfectly match your current level and help you improve.
What age rating does Iodoku have?
Iodoku is rated 4+ and is suitable for players of all ages. It is designed to be accessible for beginners while offering challenges for experts.
How often is Iodoku updated?
The latest version of Iodoku is 1.0.8, and it was last updated on December 10, 2025. Updates typically include improvements and new features.
Can I play Iodoku offline?
The provided data does not specify if Iodoku can be played offline. However, AI-powered features might require an internet connection for puzzle generation and coaching.
What devices support Iodoku?
Iodoku is supported on iPhones and iPads, offering a clean and intuitive interface optimized for these devices.