# PSS EVO vs Seabook

The clearest difference is review sentiment: Seabook at 61% against PSS EVO's 0%. Seabook also leads on update cadence (every 11 days vs every 3 months). PSS EVO's advantage is in-app purchases (none vs 9) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Seabook sells 9 in-app purchases, starting at $1.99 per 7 days. PSS EVO asks for nothing beyond the download.

PSS EVO ships an update every 3 months, Seabook every 11 days. Both last shipped on November 2, 2026.

## The numbers

| Metric | PSS EVO | Seabook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (242 ratings)](https://appshunter.io/ios/app/seabook-fish-identifier-and-log/id1457338313/reviews)** |
| Number of ratings | — | **242** |
| Positive reviews | 0.0% of reviews | **61.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 11 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 368 MB |
| Requires iOS | **10.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Margherita Aucelli](https://appshunter.io/developer/904666795) | [Stanislau Kuryan](https://appshunter.io/developer/1457338312) |

## What reviewers say

### PSS EVO

[App page](https://appshunter.io/ios/app/pss-evo/id1361482398)

This app serves as a digital learning hub, offering educational content for users. It provides a centralized platform for accessing various learning materials and resources.

**Highlights:** E-learning center, Access educational content, Centralized learning platform, Educational resources

**Features:** macOS Compatibility

**In-app purchases:** none


### Seabook

[App page](https://appshunter.io/ios/app/seabook-fish-identifier-and-log/id1457338313)

Identify marine life with AI-powered photo recognition and explore detailed species information. Log your dives with comprehensive data, track conditions, equipment, and sightings. Organize your discoveries into personal collections and access information offline.

**Highlights:** AI fish identification by photo, Comprehensive dive logbook, Personalized marine life collections, Detailed species information, Intuitive search and filters, Offline mode for remote access

**Features:** Family Sharing, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly (extended) | $1.99 | per 7 days |
| Weekly premium access | $4.00 | per 7 days |
| Monthly Premium access | $7.00 | per month |
| Annual Premium (extended) | $29.00 | per year |
| Annual Premium (3 days trial) | $39.00 | per year |
| Annual Premium access | $43.00 | per year |
| Lifetime Offline mode | $5.00 | one-time |
| IAS Special Offer | $49.99 | one-time |
| Lifetime Offer for Students | $59.99 | one-time |


## Frequently asked questions

### Is PSS EVO free?

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

### Is Seabook free?

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

### Do PSS EVO or Seabook have ads?

Neither PSS EVO nor Seabook shows ads.

### Which is updated more often, PSS EVO or Seabook?

PSS EVO ships an update every 3 months, and Seabook every 11 days. Most recently, PSS EVO was updated on November 2, 2026 and Seabook on November 2, 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.*