# Fish Harmony vs FishScan

The clearest difference is rating: Fish Harmony at 3.4 against FishScan's 2.7. Fish Harmony also leads on in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.0). FishScan's advantage is update cadence (every 4 months vs every 9 months) and ratings volume (66 vs 10). On price, ads and device support there is nothing between them.

Both are free to download. FishScan sells 2 in-app purchases, starting at $9.99 per 3 months. Fish Harmony asks for nothing beyond the download.

Fish Harmony holds the better App Store score, 3.4 against 2.7. That said, the two scores are not equally well evidenced: FishScan has 66 ratings behind it against 10, so its average is the more settled of the two.

Fish Harmony ships an update every 9 months, FishScan every 4 months. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Fish Harmony | FishScan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (10 ratings)](https://appshunter.io/ios/app/fish-harmony/id1309770017/reviews)** | [2.7 (66 ratings)](https://appshunter.io/ios/app/fishscan-fish-identifier/id1577495161/reviews) |
| Number of ratings | 10 | **66** |
| Positive reviews | — | 13.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | **Free** | Subscription |
| Size | 33 MB | 98 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Pat Canella](https://appshunter.io/developer/1309770016) | [志成 汤](https://appshunter.io/developer/1511267785) |

## What reviewers say

### Fish Harmony

[App page](https://appshunter.io/ios/app/fish-harmony/id1309770017)

This app provides comprehensive compatibility data for various aquarium fish species, helping you determine if they will coexist peacefully. It also offers reef safety information for saltwater fish to protect your coral. Users can perform direct comparisons between two fish species.

**Highlights:** Fish compatibility data, Reef safe ratings, Freshwater and saltwater modes, Fish-to-fish comparison, Compatibility warnings

**Features:** macOS Compatibility

**In-app purchases:** none


### FishScan

[App page](https://appshunter.io/ios/app/fishscan-fish-identifier/id1577495161)

Instantly identify fish from photos using AI. Explore a vast encyclopedia of species, track your discoveries, and enjoy weekly fish facts and wallpapers. Perfect for anglers, aquarium enthusiasts, and ocean lovers.

**Highlights:** Identify fish from photos, Extensive fish species encyclopedia, Save and organize identified fish, Weekly fish wallpapers, Fish facts blog

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FishScan Premium | $9.99 | per 3 months |
| FishScan Premium | $29.99 | per year |


## Frequently asked questions

### Is Fish Harmony free?

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

### Is FishScan free?

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

### Which has better reviews, Fish Harmony or FishScan?

Fish Harmony is rated higher. Fish Harmony averages 3.4 out of 5 from 10 ratings, while FishScan averages 2.7 from 66 ratings.

### Do Fish Harmony or FishScan have ads?

Neither Fish Harmony nor FishScan shows ads.

### Which is updated more often, Fish Harmony or FishScan?

Fish Harmony ships an update every 9 months, and FishScan every 4 months. Most recently, Fish Harmony was updated on October 13, 2026 and FishScan on October 12, 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.*