# NASA NeMO-Net — Classify Coral Reefs > Citizen science app for classifying coral reefs using 3D painting and augmented reality. (iPhone/iPad app by NASA.) - Source: https://appshunter.io/ios/app/nasa-nemo-net/id1506604930 (this page in markdown: same URL + `.md`) - Developer: [NASA](https://appshunter.io/developer/355542146) - Category: Games, Education, Casual, Family - Price: Free - Rating: 4.90/5 from 598 App Store ratings · 110 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 590 MB - Languages: American English - Released: 2020-04-08 - Data updated: 2026-08-30 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/nasa-nemo-net/id1506604930/reviews.md ## What is NASA NeMO? Join the NASA team by helping us classify coral reefs! Travel the world, make friends with ocean wildlife, and classify real coral by painting in 3D. The classifications you create go directly to NASA and help protect the oceans! * 3D PAINTING - Relax and fingerpaint, or use an Apple Pencil, to express yourself and help the environment * UNDERWATER WORLDS - Explore the open ocean meeting clownfish, sea turtles, whale shark and more * LEARN AS YOU GO - Learn about the oceans and how to classify coral as you go, no prior knowledge needed * PLAY IN AR - View the world’s corals in your own house on any augmented reality enabled device ## Key features - 3D coral painting - Explore underwater worlds - Learn about oceans - Augmented reality (AR) mode - Contribute to NASA research ## What do users think of NASA NeMO? Overall sentiment: positive **Pros** - 👍 Fun and relaxing gameplay - 🌍 Helps save the coral reefs - 🎓 Educational and informative - 🤖 Contributes to AI training - 🎨 Enjoyable coloring experience **Cons** - 🐛 Occasional crashes and bugs - 🤔 Unclear instructions or tutorial - 🖱️ Difficult controls without a mouse - 🕰️ Slow data loading and processing **Commonly reported bugs** - Unable to close 2D mode menu - Freezing or crashing during gameplay - Inconsistent data loading and connectivity **Most requested features** - More detailed coral identification guides - Ability to skip tutorial or intro - Customizable UI and controls - Progress tracking and achievements ## Recent user reviews (10 of 110) All indexed reviews: https://appshunter.io/ios/app/nasa-nemo-net/id1506604930/reviews.md ### 5/5 — El mejor juego de aprendizaje… *2025-09-23, version 2.5* Este es el mejor juego de aprendizaje que vi en mi vida, tiene buen diseño de niveles también se puede jugar sin wifi (descargando los niveles) además tiene detalles tan sutiles que llenan tanto el juego… sin duda es un juego grandioso lastima que ya no sacan actualizaciones la última fue hace 4 años :( ### 5/5 — I love this game *2024-12-17, version 2.5* I’m 12 years old and I enjoy this game a ton it’s great for taking note and if you want to learn about coral ### 1/5 — 很爛的遊戲 *2024-11-01, version 2.4* 這個遊戲有點無聊，因為他破關的條件太過簡單，我只是隨便填一種顏色上去，就可以過關，遊戲目標也只有收集新的珊瑚樣本和升級而已。我希望這個遊戲的說明和知識影片有中文版或是字幕，不然常常會聽不懂，或看不懂它在說什麼，如果有中文版或是字幕就得懂了。 ### 5/5 — An app with a purpose *2024-11-01, version 2.5* Great app where you play, learn and are helping the planet 🙃 ### 1/5 — Bad quality *2024-10-18, version 2.5* Was fun at first but now it keeps bringing me to a “connecting to server” and no matter how long I wait it doesn’t put me in the game. ### 5/5 — Such Important Work *2024-04-16* Thank you for allowing me to feel useful!! It only takes a little practice!! I love being able to help!! ### 4/5 — Could use some UI updates *2024-04-10* The user interface isn’t the greatest. I would love to review transects from somewhere other than Tumon Bay and the field guides could use more detail and need to be updated. Otherwise, I hope that this info is still being used! ### 5/5 — Amazing! *2023-11-02, version 2.5* This game is really fun and relaxing at the same time, which is hard for a game to pull of. And knowing the fact that you are saving the worlds coral reefs, enhances gameplay more. ### 5/5 — A vibrant porpoise writes *2023-07-31* I love the sea and now am learning new technology to conserve the ecosystem and name the flora and fauna. ### 4/5 — Need more info for Tumon Bay *2023-05-21* So I have been using this app for months. Not to be rude but this is a citizen science app not a coloring page for your toddler! If you cannot read or just don’t want to, please don’t think this app is for you! I keep reviewing transects for Tumon Bay. I don’t know why but I feel like a lot of the pictures are getting misidentified by users. There are some new classifications used in the Tumon Bay area that I feel people are misunderstanding. I had to go online to figure out what a fire coral looks like and I’m not sure everyone knows the difference between beach sand and underwater sand. when there’s an anthropogenic object I think that may need defined. It would be nice if NASA uploaded definitions for the new classifications specific to Tumon Bay. That way everyone using the app is on the same page! ## Frequently asked questions about NASA NeMO ### What is NASA NeMO-Net? NASA NeMO-Net is a mobile application that allows users to contribute to coral reef classification. By painting in 3D and exploring underwater worlds, users help NASA gather data to protect the oceans. ### How does the 3D painting feature work? The 3D painting feature allows you to relax and fingerpaint or use an Apple Pencil to classify coral reefs. This interactive process helps express yourself while contributing to environmental research. ### Is there a cost to use NASA NeMO-Net? No, NASA NeMO-Net is a free application. There are no in-app purchases or advertisements, allowing everyone to participate in coral reef classification. ### What are the compatibility requirements for NASA NeMO-Net? The app is compatible with augmented reality enabled devices for its AR mode. Specific operating system requirements are not detailed but it is designed for mobile use. ### What can I learn from this app? You can learn about the oceans and how to classify coral as you play, with no prior knowledge required. The app also introduces you to various ocean wildlife like clownfish and whale sharks. ## Version history (last 5 releases) ### 2.5 — 2020-12-16 Bug fixes ### 2.4 — 2020-06-25 Added point cloud support. ### 2.3 — 2020-04-22 Bug fixes ### 2.2 — 2020-04-14 Bug fixes ### 2.1 — 2020-04-10 Bug fixes ## Apps similar to NASA NeMO | App | Rating | Price | Category | | --- | --- | --- | --- | | [Zoo Keeper Simulator Tycoon 3D](https://appshunter.io/ios/app/zoo-keeper-simulator-tycoon-3d/id1601358216) | 4.3 (3,739) | Free | Games | | [Ocean -The place in your heart](https://appshunter.io/ios/app/ocean-the-place-in-your-heart/id1601159318) | 4.6 (912) | Free | Games | | [Chess for Kids: Learn to Play](https://appshunter.io/ios/app/chess-for-kids-learn-to-play/id629375826) | 4.7 (99,886) | Free | Games | | [AQUALIA](https://appshunter.io/ios/app/aqualia/id6480156214) | 4.7 (995) | Free | Games | | [Fish Farm 4: 3D Aquarium](https://appshunter.io/ios/app/fish-farm-4-3d-aquarium/id6503139059) | 4.5 (348) | Free | Games | | [Pocket Aquarium “Pokerium"](https://appshunter.io/ios/app/pocket-aquarium-pokerium/id1434823891) | 4.8 (792) | Free | Games | ## More apps by NASA - [NASA](https://appshunter.io/ios/app/nasa/id334325516) - [NASA Visualization Explorer](https://appshunter.io/ios/app/nasa-visualization-explorer/id448700202) - [Ascent: Commemorating Shuttle](https://appshunter.io/ios/app/ascent-commemorating-shuttle/id473973416) - [NASA HIAD](https://appshunter.io/ios/app/nasa-hiad/id534511367) - [Space365](https://appshunter.io/ios/app/space365/id543989186) - [NASA Glenn Research Center: The Early Years](https://appshunter.io/ios/app/nasa-glenn-research-center-the-early-years/id562903295) All apps by NASA: https://appshunter.io/developer/355542146 ## Related topics [sylvia](https://appshunter.io/ios/topics/sylvia) --- *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 2026-08-30.*