# Seabook Maritime vs Seably

The clearest difference is in-app purchases: Seabook Maritime at none against Seably's 11. Seably's advantage is update cadence (every 3 weeks vs every 16 months) and review sentiment (100% vs 79%). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Seably sells 11 one-off in-app purchases. Seabook Maritime asks for nothing beyond the download.

Seabook Maritime ships an update every 16 months, Seably every 3 weeks. The most recent releases landed on October 23, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Seabook Maritime | Seably |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (19 ratings)](https://appshunter.io/ios/app/seabook-maritime/id708215141/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 79.1% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 36 MB | 179 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Ozgur GUNES](https://appshunter.io/developer/708215144) | [Seably AB](https://appshunter.io/developer/1441552384) |

## What reviewers say

### Seabook Maritime

[App page](https://appshunter.io/ios/app/seabook-maritime/id708215141)

This app provides essential maritime information for seafarers and shore-based professionals. It serves as an offline reference for ship stability, navigation, regulations, and marine engineering, aiding in safer seas and cleaner waters.

**Highlights:** COLREG regulations, GMDSS information, Marine engineering details, Navigation at sea, Ship stability calculations, Shipboard safety guidelines

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

**In-app purchases:** none


### Seably

[App page](https://appshunter.io/ios/app/seably/id1441552385)

Access maritime training courses on your mobile device, with new content added monthly. Learn at your own pace with bite-sized lessons and earn shareable certificates. Download courses for offline access to continue your education anywhere.

**Highlights:** Access hundreds of maritime courses, Bite-sized lessons for flexible learning, Offline course access, Progress saved across devices, Earn shareable certificates, Learn on or offshore

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Certificate Credit - Level 2 | $9.99 | one-time |
| Certificate Credit - Level 24 | $14.99 | one-time |
| Certificate Credit - Level 4 | $29.99 | one-time |
| Certificate Credit - Level 23 | $39.99 | one-time |
| Certificate Credit - Level 27 | $69.99 | one-time |
| Certificate Credit - Level 28 | $109.99 | one-time |
| Certificate Credit - Level 17 | $119.99 | one-time |
| Certificate Credit - Level 29 | $129.99 | one-time |
| Certificate Credit - Level 21 | $189.99 | one-time |
| Certificate Credit - Level 22 | $219.99 | one-time |
| Certificate Credit - Level 20 | $249.99 | one-time |


## Frequently asked questions

### Is Seabook Maritime free?

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

### Is Seably free?

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

### Do Seabook Maritime or Seably have ads?

Neither Seabook Maritime nor Seably shows ads.

### Which is updated more often, Seabook Maritime or Seably?

Seabook Maritime ships an update every 16 months, and Seably every 3 weeks. Most recently, Seabook Maritime was updated on October 23, 2026 and Seably on October 18, 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.*