# BlueDive vs Reef

The clearest difference is in-app purchases: BlueDive at none against Reef's 2. Reef's advantage is iOS requirement (15.1 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Reef sells 2 in-app purchases, starting at $4.99 per month. BlueDive asks for nothing beyond the download.

BlueDive ships an update every 10 days, Reef every 6 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | BlueDive | Reef |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/reef-scuba-diving-logbook/id6761029175/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 6 days** |
| Size | 30 MB | 174 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Steve Houle](https://appshunter.io/developer/1883532323) | [Anton Usov](https://appshunter.io/developer/1887388788) |

## What reviewers say

### BlueDive

[App page](https://appshunter.io/ios/app/bluedive/id6760430619)

**Features:** macOS Compatibility

**In-app purchases:** none


### Reef

[App page](https://appshunter.io/ios/app/reef-scuba-diving-logbook/id6761029175)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reef Pro - Monthly | $4.99 | per month |
| Reef Pro - Yearly | $29.99 | per year |


## Frequently asked questions

### Is BlueDive free?

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

### Is Reef free?

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

### Do BlueDive or Reef have ads?

Neither BlueDive nor Reef shows ads.

### Which is updated more often, BlueDive or Reef?

BlueDive ships an update every 10 days, and Reef every 6 days. Most recently, BlueDive was updated on October 24, 2026 and Reef on October 24, 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.*