Sharkdoku: Sudoku-Style Logic
Ad Free Play, Offline Puzzles
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Ad-free play has arrived: no banners or surprise ads. Dive into endless shark puzzles at your own pace. Rewarded videos stay optional.
Sharkdoku is a numberless twist for fans of ad-free Sudoku and relaxing logic puzzles.
Enjoy ad-free play with no banners and no automatic ads between levels. Optional rewarded videos are available only when you choose extra help.
SHARKS INSTEAD OF NUMBERS
Find a home for every shark using three simple rules:
• One shark in each color region.
• One shark in every row and column.
• Sharks cannot touch, even diagonally.
Use Sudoku-style deduction to rule out squares and find the next safe move. Tap to mark a square. Double-tap the same square to place a shark. No number calculations needed.
AN ENDLESS OCEAN OF PUZZLES
A guided first level gets you started. Then explore endless, uniquely solvable puzzles with varied layouts and boards growing to ten sharks. Every level is free to play, with no subscription or paid puzzle packs.
OFFLINE, AT YOUR PACE
Play offline with no puzzle timer. Your board, notes, level, pearls and supplies are saved on your device, ready when you return. There is no energy timer or wait for lives to refill. Run out of squid lives? Restart immediately for free, as often as you like.
A LITTLE HELP, YOUR CHOICE
Start with five Hints and five Reveals. A Hint explains the next safe move; a Reveal places a shark. When supplies run out, you can choose a rewarded video for another hint, reveal or three squid lives. Videos require an internet connection and availability. You can keep solving and restarting without watching them.
A DAILY REASON TO DIVE BACK IN
Complete a new level each day to collect a fin. A seven-day streak unlocks a mystery chest of free hints or reveals. Optional local reminders can help you keep your streak going.
A TIP, NEVER AN UNLOCK
Enjoying your time in the ocean? The optional Tip jar lets you support the developer. Tips grant no hints, reveals, lives, levels or other gameplay benefits. Puzzle play stays free whether you tip or not.
Find the sharks. Enjoy the splash. Keep playing your way.
Your ocean, uninterrupted.
• No banners or automatic ads between levels.
• A one-time welcome-back message thanks returning players.
• An optional Tip jar lets you support the developer, with no gameplay unlocks or benefits.
Every puzzle remains free to play. Rewarded videos for hints, reveals and extra squid lives remain entirely your choice.
The developer, Gray Software Solutions, LLC, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Location
- Identifiers
- Usage Data
- Diagnostics
- Other Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Gray Software Solutions, LLC
- Size
- 512.7 MB
- Category
- Puzzle
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- A little splash $1.00
- Buy me a coffee $3.00
- A whale of a thanks $5.00
- Ads Off $3.99
- Copyright
- © 2026 Gray Software Solutions, LLC