# Seabook vs Interactive Quantum Mechanics

The clearest difference is iOS requirement: Seabook at 16.4 against Interactive Quantum Mechanics's 26.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Seabook sells 9 in-app purchases, starting at $1.99 per 7 days and Interactive Quantum Mechanics sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Seabook ships an update every 11 days, Interactive Quantum Mechanics fortnightly. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Seabook | Interactive Quantum Mechanics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (240 ratings)](https://appshunter.io/ios/app/seabook-fish-identifier-and-log/id1457338313/reviews)** | — |
| Number of ratings | **240** | — |
| Positive reviews | 61.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 368 MB | 10 MB |
| Requires iOS | **16.4** | 26.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Stanislau Kuryan](https://appshunter.io/developer/1457338312) | [Stephen Moon](https://appshunter.io/developer/6786831121) |

## What reviewers say

### 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 |


### Interactive Quantum Mechanics

[App page](https://appshunter.io/ios/app/interactive-quantum-mechanics/id6786831119)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Founder's Pass | $14.99 | one-time |


## Frequently asked questions

### Is Seabook free?

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

### Is Interactive Quantum Mechanics free?

Interactive Quantum Mechanics is free to download, with in-app purchases available.

### Do Seabook or Interactive Quantum Mechanics have ads?

Neither Seabook nor Interactive Quantum Mechanics shows ads.

### Which is updated more often, Seabook or Interactive Quantum Mechanics?

Seabook ships an update every 11 days, and Interactive Quantum Mechanics fortnightly. Most recently, Seabook was updated on October 29, 2026 and Interactive Quantum Mechanics on October 25, 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.*