# FishDoku: No Ads Sudoku Game — Relaxing Fish Logic Puzzle

> Ocean-themed logic puzzle game with hundreds of levels and no ads. (iPhone/iPad app by 纪洋 曾.)

- Source: https://appshunter.io/ios/app/fishdoku-no-ads-sudoku-game/id6808062577 (this page in markdown: same URL + `.md`)
- Developer: [纪洋 曾](https://appshunter.io/developer/6807868601)
- Category: Games, Entertainment, Casual, Puzzle
- Price: Free with in-app purchases
- Rating: 5.00/5 from 7 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 258 MB
- Languages: American English, Dutch, French (France), German (Germany), Hindi, Indonesian, Italian, Japanese, Korean, Malay and 10 more
- Released: 2026-09-08
- Data updated: 2026-10-29
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/fishdoku-no-ads-sudoku-game/id6808062577/reviews.md

## What is FishDoku?

Logic puzzles without the ad breaks.

Place one fish in every row, column, and colored region. Keep fish apart, even diagonally, and solve each board through logic.

NO ADS. INCLUDING WHEN YOU USE HINTS.

No banner ads. No ads between puzzles. No videos to watch for hints. Both free and paid play are ad-free.

Start with over 300 free levels across Reef Trail and Quick Reef. Unlock the complete library of 20,000+ puzzles with one Full Ocean purchase. No subscription. Play puzzles offline; optional iCloud sync and Game Center require an internet connection.

Watercolor reefs, satisfying deductions, and a new daily challenge. Take your time and enjoy the next aha moment.

THREE SIMPLE RULES. PLENTY TO DISCOVER.

• Place exactly one fish in each row and each column.
• Place exactly one fish in each colored reef.
• Fish cannot touch, even diagonally.

Easy to learn, rewarding to figure out. Start with one sure move, connect the clues, and enjoy solving the whole board through logic rather than guesswork.

WHAT KIND OF BREAK ARE YOU IN THE MOOD FOR?

• Reef Trail: Follow a guided journey from friendly first steps to more intricate challenges.
• Quick Reef: Pick your board size and difficulty for a gentle warm-up or a serious brain workout.
• Daily Challenge: Take on a fresh 12 × 12 puzzle each day and make a little room for discovery.

TWO FISH. TAKE YOUR REASONING FURTHER.

Clues intertwine, and each discovery can open a new way forward. Two Fish brings richer layers of deduction: observe, rule out possibilities and connect the clues until everything clicks. A dedicated leaderboard and achievements celebrate each breakthrough.

YOUR LITTLE OCEAN, READY WHEN YOU ARE

A commute, a coffee break, a quiet moment before bed—there is always time for a few clues.

No account registration is needed. Play puzzles offline. Watercolor visuals, light and dark appearances, optional sounds and haptics, and a high-contrast board help you make the experience your own.

EXPLORE FOR FREE. STAY FOR THE OCEAN.

Enjoy over 300 free levels across Reef Trail and Quick Reef.

Want to explore further? One Full Ocean purchase unlocks the complete library of 20,000+ puzzles and future puzzle additions, an extra hint allowance per puzzle, and Auto Exclusion in every mode. No subscription. No ads.

YOUR OCEAN, ON iPHONE AND iPAD

Enjoy FishDoku on iPhone and iPad. When iCloud is available, your progress can sync through your private iCloud account. Puzzles remain playable offline; syncing requires an internet connection and iCloud.

Use optional Game Center to track regular puzzle progress and Daily Challenge streaks, and work toward dozens of achievements. The regular puzzle leaderboard counts distinct regular puzzles solved; Daily Challenge and repeat completions do not add to that total. Daily Challenge has a separate streak leaderboard. Full Ocean gives you access to more regular puzzles.

Turn Daily Challenge results and statistics into image cards to share, or send a FishDoku recommendation. Cards are created on your device and shared only when you choose.

A little challenge for your mind. A little ocean time for you.

## Key features

- Ocean-themed logic puzzles
- Ad-free experience
- Hundreds of free levels
- Guided and quick play modes
- Daily challenges
- Offline play
- Watercolor visuals

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Full Ocean | $4.99 | one-time |
| Shore Pearls | $0.99 | one-time |
| Coral Gift | $1.99 | one-time |
| Deep Sea Collection | $3.99 | one-time |
| Ocean Treasury | $9.99 | one-time |
| Two Fish | $2.99 | one-time |


## Is FishDoku safe?

Not enough ratings yet to assess FishDoku.

## Is FishDoku legit?

FishDoku: No Ads Sudoku Game has limited verification signals. The AppsHunter Legitimacy Score for FishDoku is 58 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/fishdoku-no-ads-sudoku-game/id6808062577/reviews.md

### 5/5 — No Ads Great Fun

*2026-10-23*

Finally after downloading several of these type of games that promote no ads this is actually telling the truth. So much fun

**Developer response:** We really appreciate your kind words! It means a lot that you love our ad-free gameplay. Enjoy the game 😊

### 5/5 — good game

*2026-10-15*

interesting

**Developer response:** Thanks for the 5 stars! Happy you like it.

### 5/5 — Addicting little puzzle

*2026-10-13*

Perfect for killing time. All logic, no guesswork. Really enjoyi. 5/5.

**Developer response:** We really appreciate your 5‑star feedback! It means a lot that you like our logic‑first puzzles for killing time. Hope you keep having fun with more levels.

### 5/5 — fun

*2026-10-12*

It's really fun; I've been playing it all day.

**Developer response:** Awesome to know you’re having so much fun! Happy puzzle‑solving, and thanks for taking time to leave feedback.

### 5/5 — Cute logic game

*2026-10-11*

I’ve been playing FishDoku on my commute. No ads, every puzzle can be solved with logic, no guessing. Super satisfying quick brain game. Solid 5 stars

**Developer response:** Thanks so much for your lovely review! We’re happy FishDoku works great for your commute. Our goal is clean ad‑free logic puzzles that you can solve purely with reasoning. Enjoy your brain teasers!

### 5/5 — 非常适合家里小宝宝

*2026-10-11*

益智

**Developer response:** 感谢好评！很高兴 FishDoku 可以作为小朋友的益智小游戏，我们会持续打磨游戏，欢迎多多体验😊

## Frequently asked questions about FishDoku

### Does FishDoku have ads?

No, FishDoku is advertised as being absolutely ad-free from the start. This applies whether you play the free version or unlock the Full Ocean purchase, ensuring uninterrupted puzzle time.

### How much does FishDoku cost?

FishDoku is free to download and play, offering 380 free levels. An optional 'Full Ocean' purchase unlocks over 20,000 puzzles and future content for a one-time fee, with no subscription required.

### Can I play FishDoku offline?

Yes, FishDoku can be played offline, making it convenient for commutes or areas with no internet access. Syncing progress via iCloud requires an internet connection.

### What are the main game modes in FishDoku?

FishDoku offers three main modes: Reef Trail for a guided journey, Quick Reef for customizable board sizes and difficulties, and Daily Challenge for a fresh 12x12 puzzle each day.

### What is the age rating for FishDoku?

FishDoku has an age rating of 4+, making it suitable for younger players and families. The gameplay is designed to be easy to learn but rewarding to master.

### How often is FishDoku updated?

The latest version is 1.1.0, last updated on September 13, 2026. Future puzzle additions are mentioned as part of the Full Ocean purchase, suggesting ongoing content releases.

### What devices does FishDoku support?

FishDoku is available on iPhone and iPad. Progress can be synced across devices using iCloud when available.

### What makes FishDoku unique compared to other puzzle games?

FishDoku stands out with its completely ad-free experience, unique watercolor art style, and a focus on logical deduction rather than guesswork. The game offers a peaceful and immersive ocean escape.

## Version history (last 5 releases)

### 1.3.4 — 2026-10-28

1. Enjoy a free Halloween board skin: Pumpkinlight Mysteries.
2. Enable optional reminders for daily challenges and badges you are close to earning.
3. Jump straight into Quick Reef and choose levels from the board.
4. Fixed issues reported by players and improved the gameplay experience.

### 1.3.3 — 2026-10-23

1. Improved animations and interactions, and refreshed sharing posters.
2. Fixed issues reported by players and improved performance.
3. Added support for playing on iPhone Duo.

### 1.3.2 — 2026-10-18

1. Refreshed victory celebrations and watercolor results screens.
2. Fixed issues reported by players, improved performance, and enhanced the offline play experience.

### 1.3.1 — 2026-10-15

1. Improved fish swimming, board entrance, and level completion celebration animations.
2. Refreshed ocean-themed screens.
3. Improved board readability.
4. Fixed issues reported by players.

### 1.3.0 — 2026-10-10

New Two Fish mode takes your reasoning a step further!
New Next assistance explains the logic to help you understand and make your next move.
A dedicated Two Fish leaderboard and 9 new achievements track your progress.
A refreshed home screen! New background music!
Fixed issues reported by players and improved the gameplay experience.

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## More apps by 纪洋 曾

- [Fishogram: Nonogram Crossing](https://appshunter.io/ios/app/fishogram-nonogram-crossing/id6819005681)

All apps by 纪洋 曾: https://appshunter.io/developer/6807868601

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-29.*