Turtle World. vs KATOA
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Turtle World.
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.
- Name and raise virtual turtles
- Feed turtles every 3 days
- Clean water diligently
- Grow turtles through interaction
- Relaxing BGM and gameplay
- Paced, casual progression
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Relax with healing a turtle and BGM! Your mission is to name and raise turtle. There are only two rules ・ Feed once every 3 days ・ Clean the water diligently when in contact with turtle. It is a loose fluffy game that you can proceed at your own pace even if you are busy. The longer you spend in contact with the whale, the faster the turtle will grow. Also, please note that the turtle will die if left unattended. Grow your favorite turtle!
KATOA
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.
- 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
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Become a Guardian of Light! Defend the oceans from the toxic Blight and build breath-taking underwater habitats in KATOA. Just by playing, you’ll earn real money that will help fund environmental projects from around the globe that urgently need your help! Create reefs filled with colorful corals. Invite turtles, rays, dolphins, parrotfish, and other exotic sea creatures to your safe havens, and bond with them through their stories and shared adventures. Defeat the malignant Blight; foul invaders created from the ocean’s pollution. Restore these magical underwater worlds and climb the leaderboards of ocean defenders! Be a hero. Play the game. Save the world. ■ Earn real money that goes to saving our oceans just by playing the game ■ Meet a colorful cast of characters, with unique personalities and lots to say ■ Explore the world’s oceans and discover new biomes to reclaim and expand ■ Design your own havens with a variety of beautiful Flora ■ Defeat the toxic Blight that pollutes the world ■ Assemble a team of adventurous Fauna to embark on Quests and bring back valuable resources * Please note: KATOA works best on iPhone 8 and above. Need help? Just contact support@sankaristudios.com! We'd love to talk to you.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Turtle World. | KATOA |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) | 4.4 (118 ratings) — better |
| Positive reviews | 92.5% of reviews — better | 66.7% of reviews |
| Number of ratings | 1 | 118 — better |
| Update frequency | Every 4 weeks — better | Monthly |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 10.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 81 MB | 570 MB |
| Age rating | 4+ | 4+ |
| Developer | Basement Apps, Inc. | Sankari Studios, Inc. |
Customer experience
Turtle World.
KATOA
User reviews
Turtle World.
From 1 App Store ratingsWhat we love
- 🐢 Cute turtles
- 😌 Relaxing gameplay
- ✨ Soothing visuals and music
- 👍 Simple and easy to play
- 💖 Adorable animations
Room to improve
- 🚫 Game not in English
- 😵 Inappropriate ads shown
- 🖱️ Cannot click 'receive x2' button
- ⚖️ Water quality drops quickly
- 🐢 Can be difficult to raise
KATOA
From 118 App Store ratingsWhat we love
- 🌊 Beautiful ocean visuals
- 🐠 Cute and diverse aquatic fauna
- 🌱 Relaxing gameplay loop
- 🌍 Supports environmental causes
- 🎨 Gorgeous art style
Room to improve
- 🐛 Frequent crashes and bugs
- ⏱️ Slow progression and unlock process
- 🔁 Repetitive daily quests
- 🤖 Unintuitive or unclear mechanics
- 💤 Lack of content and things to do
Bugs and requests
Turtle World.
Reported bugs
2 issues- Cannot click 'receive x2' button
- Inappropriate ads are displayed
Requested features
3 requests- Change game language to English
- Remove disturbing ads
- Fix button for receiving rewards
KATOA
Reported bugs
5 issues- 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
5 requests- 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
In-app purchases
Turtle World.
No in-app purchases
KATOA
- Handful of Stars$0.99
- Bunch of Stars$4.99
- Pile of Stars$9.99
Show 3 moreShow fewer
- Bag of Stars$19.99
- Barrel of Stars$39.99
- Chest of Stars$79.99
Questions
Is Turtle World. free?
Is KATOA free?
Which has better reviews, Turtle World. or KATOA?
Do Turtle World. or KATOA have ads?
Which is updated more often, Turtle World. or KATOA?
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