# NAUI vs FathomVerse

The clearest difference is review sentiment: FathomVerse at 86% against NAUI's 17%. FathomVerse also leads on rating (4.7 vs 3.0) and update cadence (every 6 weeks vs every 4 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FathomVerse holds the better App Store score, 4.7 against 3.0. Both are backed by a comparable volume of ratings — 48 and 92 respectively. Written reviews point the same way: 17% of NAUI's written reviews are positive against 86% of FathomVerse's.

NAUI ships an update every 4 months, FathomVerse every 6 weeks. The most recent releases landed on October 20, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | NAUI | FathomVerse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (48 ratings)](https://appshunter.io/ios/app/naui/id1441033077/reviews) | **[4.7 (92 ratings)](https://appshunter.io/ios/app/fathomverse/id6469854247/reviews)** |
| Number of ratings | 48 | **92** |
| Positive reviews | 17.4% of reviews | **85.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 120 MB | 284 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NAUI Worldwide](https://appshunter.io/developer/1441033076) | [Monterey Bay Aquarium Research Institute](https://appshunter.io/developer/997448509) |

## What reviewers say

### NAUI

[App page](https://appshunter.io/ios/app/naui/id1441033077)

Access your NAUI certifications, training materials, and dive logs on your mobile device. Find local dive stores, manage students, and utilize dive planning tools. Stay updated with the latest news and events from NAUI Worldwide.

**Highlights:** Access CORE profile and certifications, Digital C-Cards and achievements, Locate NAUI dive stores and professionals, Access eLearning courses, Manage and certify students, Digital dive logs, Dive planning tools

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

**In-app purchases:** none


### FathomVerse

[App page](https://appshunter.io/ios/app/fathomverse/id6469854247)

Explore the ocean world through an immersive game that trains AI for scientific research. Discover and identify over 50 groups of ocean animals using real imagery collected by researchers. Contribute to science while playing minigames, completing quests, and earning badges.

**Highlights:** Play minigames with real ocean imagery, Identify over 50 groups of ocean animals, Save and share favorite images, Participate in quests and earn badges, Unlock awards for gameplay contributions, Customize soundscape with Ocean Radio

**In-app purchases:** none

**What reviewers like**

- 🌊 Relaxing and peaceful experience
- 🔍 Opportunity to contribute to ocean research
- 🌟 Stunning visuals and immersive environment
- 🧠 Educational content on marine life
- 🤝 Responsive and helpful development team

**What reviewers complain about**

- 🐛 Buggy and inconsistent user interface
- 🤔 Unclear instructions and onboarding process
- ⏱️ Slow and tedious core gameplay loop
- 🔍 Lack of ability to re-examine animal images
- 🧭 Inconsistent controls between different sections


## Frequently asked questions

### Is NAUI free?

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

### Is FathomVerse free?

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

### Which has better reviews, NAUI or FathomVerse?

FathomVerse is rated higher. NAUI averages 3.0 out of 5 from 48 ratings, while FathomVerse averages 4.7 from 92 ratings.

### Do NAUI or FathomVerse have ads?

Neither NAUI nor FathomVerse shows ads.

### Which is updated more often, NAUI or FathomVerse?

NAUI ships an update every 4 months, and FathomVerse every 6 weeks. Most recently, NAUI was updated on October 20, 2026 and FathomVerse on October 21, 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.*