Plino: Daily Sudoku Puzzle
One grid a day, and whodunits
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Today's grid is the same for everyone. Finish it, race your country's board, and a slip prints one line of story.
Plino is one sudoku a day. The whole world gets the same grid, and when you finish, a slip prints one line of story.
DAILY
A fresh 9x9 sudoku every day, solvable by logic alone. Notes, undo, and a clock that stops when you leave. Finish and the slip prints, stamped for how cleanly you solved it.
YOUR COUNTRY'S BOARD
Pick a nickname and your country. Today's Daily finish goes on your country's board, so everyone races the same grid.
CASE
Whodunits on a floor plan. Place each suspect in a square, one per row and column, until every clue agrees. The culprit is the only person alone in a room with the victim. Six cosy, original cases, starting with a guided first case at Gull Cottage.
MARKS
Sudoku with objects in place of numbers: keys, parcels, books, and stamps.
PRACTICE
A drawer of stock grids, easy to hard, for when one a day is not enough. They pay a little XP and never touch the board.
AND
- XP and levels for a quick finish, and a streak for days in a row
- Focus time fills an inkwell and earns hints
- New inks and papers as you level up
- Lo-fi music and tactile tap sounds, both easy to switch off
- No ads, no account, and nothing to buy
- Progress stays on your phone
Written by Andrew Pickett. Published by Omega IT Limited, Isle of Man.
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The developer, OmegaIT Limited, 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:
- User Content
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- OmegaIT Limited
- Size
- 6.4 MB
- Category
- Puzzle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Realistic Violence
Alcohol, Tobacco, Drug Use or References
Contains
User-Generated Content
- Copyright
- © 2026 Omega IT Limited
