AWU2UDDF vs GPS for Action
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
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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.
GPS for Action
Automatically geotag your videos and photos with real-time GPS coordinates from your iPhone. Control your camera and set up auto-recording based on motion, ensuring you capture every moment without extra hardware or subscriptions.
- Real-time GPS streaming to camera
- Automatic geotagging of videos and photos
- Remote camera control (record, mode switch, photo capture)
- Motion-based auto-recording (movement, descent, ascent)
- GPX track recording and export
- On-device processing, no internet required
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GPS for Action streams real-time GPS coordinates from your iPhone to your DJI Osmo Action or Osmo 360 camera over Bluetooth — so every video and photo is automatically geotagged without any extra hardware, mounts, or subscriptions. SUPPORTED CAMERAS - DJI Osmo Action 4 - DJI Osmo Action 5 Pro - DJI Osmo Action 6 - DJI Osmo 360 HOW IT WORKS Open the app, connect to your camera via Bluetooth, and tap Stream. Your iPhone's GPS location is sent to the camera in real time. The camera embeds the coordinates directly into the video metadata — the same way a built-in GPS module would. No Wi-Fi, no cloud, no account. Everything happens on-device. CAMERA CONTROLS Control your camera right from the app without switching devices: - Start and stop video recording - Switch between Photo, Video, and Slow-Motion modes - Trigger photo capture AUTO-RECORD Set the app to start and stop recording automatically based on your motion: - Movement detection — recording begins when you start moving - Descent detection — ideal for ski runs, bike descents, or hikes - Ascent detection — perfect for lifts, climbs, or uphill segments The camera starts rolling when the action begins and stops when you pause, so you never miss a moment and never waste storage. GPS TRACK RECORDING Every session is saved as a GPX file on your iPhone. Import tracks into any mapping app, share them with friends, or analyze your route after the fact. PRIVACY FIRST The app never connects to the internet. Your location data stays on your iPhone and is transmitted only to your camera over a direct Bluetooth connection. No account, no login, no server. FREE TRIAL Stream GPS to your camera for up to 3 minutes per session at no charge - enough to see geotagging in action. Unlock unlimited GPS streaming with a quarterly subscription ($2.99 / 3 months) or a one-time Unlimited unlock ($9.99). Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://gps-for-action.pages.dev/privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: AWU2UDDF at none against GPS for Action's 2. AWU2UDDF also leads on iOS requirement (16.0 vs 26.0). GPS for Action's advantage is update cadence (fortnightly vs every 14 months). On price, rating, ratings volume and ads 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
Both are free to download. GPS for Action sells 2 in-app purchases, starting at $2.99 per 3 months. AWU2UDDF asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for AWU2UDDF against 5.0 for GPS for Action. Both are backed by a comparable volume of ratings — 2 and 2 respectively.
AWU2UDDF ships an update every 14 months, GPS for Action fortnightly. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.
| Parameter | AWU2UDDF | GPS for Action |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 | 2 |
| Update frequency | Every 14 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Douglas Junkins | Kamil Trzcinski |
Customer experience
AWU2UDDF
GPS for Action
In-app purchases
AWU2UDDF
No in-app purchases
GPS for Action
- Quarterly$2.993 Months
- Unlimited$9.99
Questions
Is AWU2UDDF free?
Is GPS for Action free?
Which has better reviews, AWU2UDDF or GPS for Action?
Do AWU2UDDF or GPS for Action have ads?
Which is updated more often, AWU2UDDF or GPS for Action?
Other comparisons
