AWU2UDDF vs AWU Divelog
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AWU2UDDF
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.
- 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
Read full descriptionHide full description
AWU2UDDF is used to export underwater depth and temperature data collected on your Apple Watch into a standard Universal Dive Data Format (UDDF) XML file. That file can then be imported into standard diving log software such as Macdive or Subsurface to complete your diving log. AWU2UDDF integrates with the Health App and the HealthKit framework to access the depth and temperature date stored by the phone.
AWU Divelog
This app reads dive data from your Apple Watch Ultra, displaying and organizing your dives with detailed statistics and graphical representations. Export your dive logs in a universal format for use with other dive software.
- Reads dive data from Apple Watch Ultra
- Lists dives with duration, depth, and temperature
- Sorts and groups dives by various metrics
- Graphical display of depth and temperature
- Exports dives in UDDF XML format
- Provides overall dive statistics
Read full descriptionHide full description
Apple Watch Ultra (AWU) Divelog reads your recorded dive data from the Apple Watch Ultra and displays your dives. For this purpose, AWU Divelog is integrated with the Health App and the HealthKit framework and accesses the depth and temperature data stored on the phone. Your dives are listed along with the most important data, such as duration, depth and temperature, sorted by time. You may sort and group your dives by different metrics. Detailed data can be displayed for each dive. In the detail view depth and/or temperature are graphically displayed and can be shared (e.g. by AirDrop). In the detail view it is possible to swipe through the dives. In addition, overall statistics of all or selected dives are automatically displayed in the upper area of the list view. After a dive, the data is read from the Apple Watch Ultra and added to AWU Divelog. Manual updating of the list is also possible. Short surface breaks during the dive are detected and are not interpreted as separate dives. Dives can be exported as Universal Dive Data Format (UDDF) XML file (e.g. by AirDrop). The UDDF file can be imported into common dive software (e.g. Macdive and Subsurface). AWU Divelog is available in English and German. It will use your iPhone's regional units of measurement for depth and temperature (metric vs imperal). Hard Facts: - Reading recorded dive data from your Apple Watch Ultra. - List your read dives immediately after diving on your iPhone. - Statistics about your dives. - Graphical display including export for dive depth and/or water temperature. - Select individual dives. - Sort and group your dives. - Share the chart as PNG/JPG (e.g. via social media). - UDDF export of the dives
Screenshots
Verdict
The clearest difference is price: AWU2UDDF at Free against AWU Divelog's $3.99. AWU2UDDF also leads on rating (5.0 vs 3.0) and review sentiment (100% vs 67%). AWU Divelog's advantage is update cadence (every 2 months vs every 14 months). On ratings volume, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
AWU2UDDF is free to download; AWU Divelog costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
AWU2UDDF holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 100% of AWU2UDDF's written reviews are positive against 67% of AWU Divelog's.
AWU2UDDF ships an update every 14 months, AWU Divelog every 2 months. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.
| Parameter | AWU2UDDF | AWU Divelog |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 5.0 (2 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 100.0% of reviews — better | 66.7% of reviews |
| Number of ratings | 2 | 2 |
| Update frequency | Every 14 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Douglas Junkins | Stefan Taber |
Customer experience
AWU2UDDF
AWU Divelog
In-app purchases
AWU2UDDF
No in-app purchases
AWU Divelog
No in-app purchases
