PlaySudoku.io vs Notehead
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
PlaySudoku.io
Engage your mind with a classic Sudoku experience featuring customizable interfaces and multiple difficulty levels. This game offers auto-save and candidate number support for strategic play, perfect for daily mental exercise or quick gaming sessions.
- Three difficulty levels
- Auto-save functionality
- Candidate number support
- Customizable interface
- Intuitive controls
- Built-in timer
- Offline play
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Exercise your mind with this elegant Sudoku puzzle game that combines classic gameplay with modern features. Whether you're a beginner or an expert, our app offers the perfect balance of challenge and enjoyment. FEATURES: - Three difficulty levels: Easy, Medium, and Hard - Auto-save functionality - never lose your progress - Candidate number support for advanced strategies - Clean, customizable interface with light and dark modes - Intuitive controls designed for smooth gameplay - Built-in timer to track your solving speed - No internet needed! HOW TO PLAY: Fill in the 9x9 grid with numbers 1-9, ensuring each number appears only once in every row, column, and 3x3 box. Use candidate numbers to track possibilities and develop your solving strategy. Perfect for: - Daily mental exercise - Quick gaming sessions - Improving logical thinking - Relaxing while keeping your mind active Download now and start solving puzzles!
Notehead
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A second of sound. A lifetime of “I KNOW THIS ONE!” NoteHead is a fast-paced solo music quiz where your brain screams louder than the beat — especially when you forget lyrics you've sung 50 times. Whether you're a casual listener or die-hard music fan, NoteHead challenges your memory and musical instincts in a fun, addictive way.
Screenshots
Verdict
The clearest difference is update cadence: Notehead at fortnightly against PlaySudoku.io's monthly. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PlaySudoku.io ships an update monthly, Notehead fortnightly. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.
| Parameter | PlaySudoku.io | Notehead |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 — better | 18.6 |
| Further details — not scored | ||
| Size | 1 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Alfredo Perry | AMYNEBO SP Z O O |
In-app purchases
PlaySudoku.io
No in-app purchases
Notehead
No in-app purchases
