# Turtle World. vs KATOA

The clearest difference is rating: KATOA at 4.4 against Turtle World.'s 2.0. KATOA also leads on ads (none vs shown) and ratings volume (118 vs 1). Turtle World.'s advantage is in-app purchases (none vs 6) and review sentiment (92% vs 67%). On price, update cadence and device support there is nothing between them.

Both are free to download. KATOA sells 6 one-off in-app purchases. Turtle World. asks for nothing beyond the download.

KATOA holds the better App Store score, 4.4 against 2.0. That said, the two scores are not equally well evidenced: KATOA has 118 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 92% of Turtle World.'s written reviews are positive against 67% of KATOA's, so the app with the better star average is not the one people write more warmly about.

Turtle World. ships an update every 4 weeks, KATOA monthly. Both last shipped on November 3, 2026.

## The numbers

| Metric | Turtle World. | KATOA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/turtle-world/id1553747630/reviews) | **[4.4 (118 ratings)](https://appshunter.io/ios/app/katoa-oceans/id1618026462/reviews)** |
| Number of ratings | 1 | **118** |
| Positive reviews | **92.5% of reviews** | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 weeks** | Monthly |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 81 MB | 570 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Basement Apps, Inc.](https://appshunter.io/developer/1092009455) | [Sankari Studios, Inc.](https://appshunter.io/developer/1564763138) |

## What reviewers say

### Turtle World.

[App page](https://appshunter.io/ios/app/turtle-world/id1553747630)

Nurture and grow virtual sea turtles in a relaxing simulation game. Follow simple care routines like feeding and cleaning to ensure your turtle thrives. Enjoy a peaceful experience at your own pace.

**Highlights:** Name and raise virtual turtles, Feed turtles every 3 days, Clean water diligently, Grow turtles through interaction, Relaxing BGM and gameplay, Paced, casual progression

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🐢 Cute turtles
- 😌 Relaxing gameplay
- ✨ Soothing visuals and music
- 👍 Simple and easy to play
- 💖 Adorable animations

**What reviewers complain about**

- 🚫 Game not in English
- 😵 Inappropriate ads shown
- 🖱️ Cannot click 'receive x2' button
- ⚖️ Water quality drops quickly
- 🐢 Can be difficult to raise

**Reported bugs**

- Cannot click 'receive x2' button
- Inappropriate ads are displayed

**Requested features**

- Change game language to English
- Remove disturbing ads
- Fix button for receiving rewards


### KATOA

[App page](https://appshunter.io/ios/app/katoa-oceans/id1618026462)

Defend the oceans by building vibrant underwater habitats and battling pollution. Play to earn real money that funds global environmental projects. Discover marine life, restore ecosystems, and become an ocean defender.

**Highlights:** Earn real money for environmental projects, Build underwater habitats, Discover and bond with sea creatures, Defeat pollution-based enemies, Explore ocean biomes, Design custom havens

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Handful of Stars | $0.99 | one-time |
| Bunch of Stars | $4.99 | one-time |
| Pile of Stars | $9.99 | one-time |
| Bag of Stars | $19.99 | one-time |
| Barrel of Stars | $39.99 | one-time |
| Chest of Stars | $79.99 | one-time |

**What reviewers like**

- 🌊 Beautiful ocean visuals
- 🐠 Cute and diverse aquatic fauna
- 🌱 Relaxing gameplay loop
- 🌍 Supports environmental causes
- 🎨 Gorgeous art style

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- ⏱️ Slow progression and unlock process
- 🔁 Repetitive daily quests
- 🤖 Unintuitive or unclear mechanics
- 💤 Lack of content and things to do

**Reported bugs**

- Quests and fauna getting stuck
- Inability to expand certain areas
- Graphical glitches and UI issues
- Login and loading problems
- Unresponsive or buggy controls

**Requested features**

- More unlockable areas and expansions
- Ability to rename or customize fauna
- Improved tutorial and in-game help
- Additional mini-games or activities
- Smoother combat and raid mechanics


## Frequently asked questions

### Is Turtle World. free?

Turtle World. is free to download, with no in-app purchases.

### Is KATOA free?

KATOA is free to download, with in-app purchases available.

### Which has better reviews, Turtle World. or KATOA?

KATOA is rated higher. Turtle World. averages 2.0 out of 5 from 1 ratings, while KATOA averages 4.4 from 118 ratings.

### Do Turtle World. or KATOA have ads?

Turtle World. shows ads; KATOA does not.

### Which is updated more often, Turtle World. or KATOA?

Turtle World. ships an update every 4 weeks, and KATOA monthly. Most recently, Turtle World. was updated on November 3, 2026 and KATOA on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*