# KATOA: Oceans — Play the game. Save the world. > Play a game to earn money and fund ocean environmental projects. (iPhone/iPad app by Sankari Studios, Inc..) - Source: https://appshunter.io/ios/app/katoa-oceans/id1618026462 (this page in markdown: same URL + `.md`) - Developer: [Sankari Studios, Inc.](https://appshunter.io/developer/1564763138) - Category: Games, Education, Casual, Simulation - Price: Free with in-app purchases - Rating: 4.43/5 from 115 App Store ratings · 95 written reviews indexed - Age rating: 4+ - Requires: iOS 16.0 · 570 MB - Languages: English, French - Released: 2023-04-19 - Data updated: 2026-07-17 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/katoa-oceans/id1618026462/reviews.md ## What is KATOA? 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. ## Key features - 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 ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Handful of Stars | $0.99 | one-time | | Pile of Stars | $9.99 | one-time | | Bunch of Stars | $4.99 | one-time | | Bag of Stars | $19.99 | one-time | | Barrel of Stars | $39.99 | one-time | | Chest of Stars | $79.99 | one-time | ## What do users think of KATOA? Overall sentiment: mixed **Pros** - 🌊 Beautiful ocean visuals - 🐠 Cute and diverse aquatic fauna - 🌱 Relaxing gameplay loop - 🌍 Supports environmental causes - 🎨 Gorgeous art style **Cons** - 🐛 Frequent crashes and bugs - ⏱️ Slow progression and unlock process - 🔁 Repetitive daily quests - 🤖 Unintuitive or unclear mechanics - 💤 Lack of content and things to do **Commonly 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 **Most 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 ## Recent user reviews (10 of 95) All indexed reviews: https://appshunter.io/ios/app/katoa-oceans/id1618026462/reviews.md ### 3/5 — Game *2026-06-26, version 1.3.5* The store won’t load ### 1/5 — Update where *2026-05-23, version 1.3.5* Where is this new update that’s been pending for 2 years. I’ve maxed out all I can do…No expansions or other oceans available so nothing to work towards ### 5/5 — Crashes so much you can’t play *2026-04-05, version 1.3.5* The game is truly amazing. Exquisite animation, gorgeous score, and very educational in a very fun way. But after the latest “updates” I can’t even get the game to load to open it up. I’m very sad. ### 2/5 — Apps cool but crashes *2026-03-06, version 1.3.5* App crashes everytime I try to enter a New Haven. Redownload, and cleared out the app and still won’t work. ### 3/5 — Great game, but… *2025-10-15, version 1.3.3* I just unlocked the second reef area and it generates a tutorial where I have to go to that location, but every time I try to load in the game crashes. ### 2/5 — I can’t login the game *2025-06-01, version 1.3.2* I come back from china and I can’t play it ### 1/5 — Game won’t open *2025-05-29, version 1.3.2* After the initial download and game demo, I’m unable to play when I try to open the app. The orange start button just continues to spin and never loads. Disappointing ### 1/5 — 1st played yesterday, won’t load today? *2025-05-27, version 1.3.2* Download yesterday and it was so much fun… but each time I tried to play today it stayed on the loading screen and then said login attempt failed…??? ### 2/5 — Game crashes a lot! *2025-05-10, version 1.3.2* Can’t even start the game it takes forever to load than crashes😅 ### 2/5 — Oceans *2025-05-05, version 1.3.2* It’s not loading please fix it ## Frequently asked questions about KATOA ### What is KATOA: Oceans? KATOA: Oceans is a game where players defend the oceans from pollution by building underwater habitats and restoring ecosystems. By playing, users can earn real money that contributes to global environmental projects. ### How do I earn money by playing? The game allows you to earn real money simply by playing. This earned money is then used to fund environmental projects around the world that require urgent assistance. ### What kind of activities can I do in the game? You can create reefs, invite and bond with various sea creatures, defeat pollution-based invaders called the Blight, explore different ocean biomes, design your own underwater havens, and assemble teams of fauna for quests. ### Is this game free to play? Yes, the game is free to play. It also offers in-app purchases, allowing players to enhance their experience or support the game further. ### What are the system requirements for KATOA: Oceans? The game is noted to work best on iPhone 8 and above. For any technical issues or further assistance, users can contact support@sankaristudios.com. ## Version history (last 5 releases) ### 1.3.5 — 2026-01-19 Small update to address the Unity security patch. ### 1.3.3 — 2025-06-15 Version 1.3.3 Update: New Leaderboards Coming Soon We’ve temporarily disabled leaderboards as we build a brand-new system that’s better than ever! The upcoming update will introduce exciting features for team and solo challenges, plus new ways to play to earn in support of your favorite ocean charities. Stay tuned—big waves are coming! ### 1.3.2 — 2024-09-03 * Some API housekeeping and updating to keep the oceans available to older devices and OS versions. ### 1.3.1 — 2023-09-12 * We've squashed a few bugs from our big Leaderboards and Teams release with this update. * We've also added local notifications so you can stay on top of your beacons, quests, and other activities to keep you at the top of the leaderboards. * Players can now earn coins as leaderboard prizes to update their avatars. * We've increased the Guardian Rating rewards for everything across the board! ### 1.3.0 — 2023-08-29 Leaderboards and Teams are here! Embark on weekly challenges against 49 other Guardians! Complete quests, defeat Blight, and nurture the Flora and Fauna in your Haven to claim the top spot on your leaderboard! Rise through the ranks, unlock better prizes, and make a difference. Every week, earn real money just by playing - the higher the ranking, the more you’ll earn for the cause you’re supporting. ## Apps similar to KATOA | App | Rating | Price | Category | | --- | --- | --- | --- | | [고양이 보호소 스토리](https://appshunter.io/ios/app/id1582633535) | 4.8 (4,363) | Free | Games | | [My Pizza Story](https://appshunter.io/ios/app/my-pizza-story/id6445882606) | 4.6 (95) | Free | Games | | [Origami Paradise](https://appshunter.io/ios/app/origami-paradise/id1614413595) | 4.7 (320) | Free | Games | | [Home Garden Lulu & Terrarium](https://appshunter.io/ios/app/home-garden-lulu-and-terrarium/id1663483716) | 4.7 (718) | Free | Games | | [Fantasy Town: Fun Farming Game](https://appshunter.io/ios/app/fantasy-town-fun-farming-game/id1592256181) | 4.6 (275) | Free | Games | | [Zoo Life: Animal Park Game](https://appshunter.io/ios/app/zoo-life-animal-park-game/id1636476166) | 4.7 (1,850) | Free | Games | --- *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 2026-07-17.*