Sudoku Journal: Daily Puzzles
Killer, Jigsaw, Thermo & More
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Sudoku Journal is an ad-free app for eight sudoku variants.
Eight variants
Classic, Jigsaw, Killer, Diagonal, Thermometer, Sandwich, Odd/Even, and Windoku share the same board, keypad, and hints. Only the rules change. Classic and Jigsaw also have quick 6×6 Mini puzzles for short sessions.
Ad-free at every tier
There are no banners, pop-ups, or videos between puzzles. Ads are not part of any tier.
Logical puzzles
Each board is generated fresh and checked by a logical solver before it is shown. Every puzzle has a logical solution without guessing, trial and error, or dead ends.
Difficulty based on technique
Easy, Medium, Hard, and Expert are based on the solving techniques a puzzle needs, not on how many numbers were removed. Easy always has a next move. Expert requires advanced patterns.
Guided hints
When you are stuck, a hint points to the right cell and explains why. The answer is one more tap away, so you can learn the technique instead of watching the grid fill itself.
Daily Challenge
The Daily Challenge is free every day, uses a different variant, and does not use a weekly puzzle. Complete it to keep the page in your journal and build your streak.
Play offline
Every puzzle works without a connection, on planes, subways, and in dead zones. No account is required.
Free and Ultimate
There is no subscription. Free includes 14 new puzzles a week across all eight variants, plus the Daily Challenge. Buy ticket packs for more puzzles, or get Sudoku Journal Ultimate: a one-time purchase for unlimited puzzles in every variant, including variants added later.
Privacy
You do not need an account. The app does not track you across apps or sell your data. You can turn off anonymous usage statistics in Settings at any time.
Questions or ideas? support@sudokujournal.app
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
We’ve fixed bugs to make your puzzle-solving experience smoother.
The developer, Katsiaryna Huseva, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Katsiaryna Huseva
- Size
- 16.5 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 4 more
- English, Belarusian, Dutch, German, Russian
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- 100 Tickets $8.99
- Ultimate $12.99
- 20 Tickets $2.99
- 60 Tickets $4.99
- Copyright
- © 2026 Van der Hus