# FathomVerse vs AION Mobile

The clearest difference is update cadence: AION Mobile at every 4 days against FathomVerse's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

FathomVerse ships an update every 6 weeks, AION Mobile every 4 days. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | FathomVerse | AION Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (88 ratings)](https://appshunter.io/ios/app/fathomverse/id6469854247/reviews)** | — |
| Number of ratings | **88** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 284 MB | 65 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Monterey Bay Aquarium Research Institute](https://appshunter.io/developer/997448509) | [PT AION Group International](https://appshunter.io/developer/6778695571) |

## What reviewers say

### 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


### AION Mobile

[App page](https://appshunter.io/ios/app/aion-mobile/id6778695569)

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

**In-app purchases:** none


## Frequently asked questions

### Is FathomVerse free?

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

### Is AION Mobile free?

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

### Do FathomVerse or AION Mobile have ads?

Neither FathomVerse nor AION Mobile shows ads.

### Which is updated more often, FathomVerse or AION Mobile?

FathomVerse ships an update every 6 weeks, and AION Mobile every 4 days. Most recently, FathomVerse was updated on October 17, 2026 and AION Mobile on October 16, 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.*