# Dive Log vs AWU2UDDF

The clearest difference is price: AWU2UDDF at Free against Dive Log's $14.99. AWU2UDDF also leads on in-app purchases (none vs 13) and rating (5.0 vs 4.7). Dive Log's advantage is update cadence (monthly vs every 14 months) and ratings volume (106 vs 2). On ads and iOS requirement there is nothing between them.

AWU2UDDF is free to download; Dive Log costs $14.99 up front. Dive Log sells 11 one-off in-app purchases. AWU2UDDF asks for nothing beyond the download.

AWU2UDDF holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Dive Log has 106 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 84% of Dive Log's written reviews are positive against 100% of AWU2UDDF's.

Dive Log ships an update monthly, AWU2UDDF every 14 months. The most recent releases landed on October 15, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Dive Log | AWU2UDDF |
| --- | --- | --- |
| Price | $14.99 | **Free** |
| Rating | [4.7 (106 ratings)](https://appshunter.io/ios/app/dive-log/id301049600/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/awu2uddf/id1661616210/reviews)** |
| Number of ratings | **106** | 2 |
| Positive reviews | 83.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 14 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#38** | — |
| Size | 33 MB | 1 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Greg Mclaughlin](https://appshunter.io/developer/284919983) | [Douglas Junkins](https://appshunter.io/developer/1661616212) |

## What reviewers say

### Dive Log

[App page](https://appshunter.io/ios/app/dive-log/id301049600)

**Currently charting:** #38 Top Paid · Sports (US App Store)

Log your SCUBA dives with detailed information, including GPS coordinates and dive buddy details. Supports metric and imperial units, and integrates with desktop software for comprehensive dive history management.

**Highlights:** SCUBA diving logbook, GPS coordinate capture, Dive buddy integration, Dive data and statistics, Metric and Imperial units, Dive computer data import, Bluetooth LE transfer

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Suunto Bluetooth Download | $2.99 | one-time |
| Mares Bluetooth Download | $2.99 | one-time |
| Crest Bluetooth Download | $2.99 | one-time |
| Shearwater Download | $2.99 | one-time |
| bluebuddy Download | $2.99 | one-time |
| SCUBAPRO Download | $2.99 | one-time |
| Pelagic Bluetooth Download | $2.99 | one-time |
| Cressi Bluetooth Download | $2.99 | one-time |
| Ratio Bluetooth Download | $2.99 | one-time |
| Halcyon Bluetooth Download | $2.99 | one-time |
| DCbuddy Support | $4.99 | one-time |


### AWU2UDDF

[App page](https://appshunter.io/ios/app/awu2uddf/id1661616210)

Export underwater depth and temperature data from your Apple Watch to a standard UDDF XML file. This file can then be imported into popular diving log software for comprehensive record-keeping. It seamlessly integrates with the Health App and HealthKit.

**Highlights:** Export underwater depth and temperature data, Standard Universal Dive Data Format (UDDF) XML output, Import into Macdive or Subsurface, Integrates with Health App and HealthKit

**In-app purchases:** none


## Frequently asked questions

### Is Dive Log free?

Dive Log costs $14.99, and also offers in-app purchases.

### Is AWU2UDDF free?

AWU2UDDF is free to download, with no in-app purchases.

### Which has better reviews, Dive Log or AWU2UDDF?

AWU2UDDF is rated higher. Dive Log averages 4.7 out of 5 from 106 ratings, while AWU2UDDF averages 5.0 from 2 ratings.

### Do Dive Log or AWU2UDDF have ads?

Neither Dive Log nor AWU2UDDF shows ads.

### Which is updated more often, Dive Log or AWU2UDDF?

Dive Log ships an update monthly, and AWU2UDDF every 14 months. Most recently, Dive Log was updated on October 15, 2026 and AWU2UDDF on September 20, 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.*