# FathomVerse vs Vexilla

The clearest difference is in-app purchases: FathomVerse at none against Vexilla's 1. FathomVerse also leads on device support (3 vs 1) and iOS requirement (15.0 vs 26.0). Vexilla's advantage is update cadence (every 8 days vs every 6 weeks). On price and ads there is nothing between them.

Both are free to download. Vexilla sells 1 one-off in-app purchase. FathomVerse asks for nothing beyond the download.

FathomVerse ships an update every 6 weeks, Vexilla every 8 days. The most recent releases landed on November 3, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | FathomVerse | Vexilla |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (92 ratings)](https://appshunter.io/ios/app/fathomverse/id6469854247/reviews)** | — |
| Number of ratings | **92** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 8 days** |
| Monetization | Free | — |
| Size | 284 MB | 10 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Monterey Bay Aquarium Research Institute](https://appshunter.io/developer/997448509) | [JOHN K C KROEKER](https://appshunter.io/developer/6806841604) |

## 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


### Vexilla

[App page](https://appshunter.io/ios/app/vexilla-know-every-country/id6806841602)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vexilla Pro Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is FathomVerse free?

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

### Is Vexilla free?

Vexilla is free to download, with in-app purchases available.

### Do FathomVerse or Vexilla have ads?

Neither FathomVerse nor Vexilla shows ads.

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

FathomVerse ships an update every 6 weeks, and Vexilla every 8 days. Most recently, FathomVerse was updated on November 3, 2026 and Vexilla 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.*