Diagnostics vs XOSS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Diagnostics
This free application helps owners of a specific hardware accessory check its operational status and view GPS data. It connects to a high-performance GPS receiver for mobile devices.
- Check hardware health
- View GPS data
- Supports VBOX Sport accessory
- Works with iPhone and iPod Touch
- Free to use
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This free App allows owners of the Racelogic VBOX Sport accessory to check the health of the hardware and see the GPS data that is being received. Visit www.vboxmotorsport.co.uk to learn more about the VBOX Sport accessory that adds a high performance GPS receiver to iPhone, iPod Touch and iPad.
XOSS
Record and analyze your outdoor sports activities with detailed metrics like speed, cadence, and heart rate. Plan routes, sync data from various bike computers, and share your progress with friends. Offers advanced data analysis with charts and GPS tracking.
- Syncs with bike computers
- Records workout data
- Advanced data analysis
- GPS tracking on map
- Route planning
- Syncs with Strava/TrainingPeaks
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XOSS is an "ALL IN ONE" application specialised in cycling and other outdoor activities. With XOSS you can do: - Data syncing from verified bike computers. Including: XOSS, CooSpo, CYCPLUS, etc.. - Workouts recording with all the data you need for free: Speed, Cadence, Power, Heart-rate, Elevation, Calories, Distance, Time, etc... - Advanced data analyzing with charts and graphics. GPS track on map, Elevation, Speed, Cadence, Heartrate Charts, Training zone analysis(Heart-rate, Power), and much more is coming! - Sync with other apps like STRAVA, TRAININGPEAKS. - Share with your friends by connecting to Strava and Training Peaks or share your workouts to social media. - Route planning before your journey. - XOSS uses Health Kit to export your activities into the Health app and to read heart rate. Follow us on FB and IG: xoss.co. More information is available at https://www.xoss.co
Screenshots
Verdict
The clearest difference is review sentiment: Diagnostics at 100% against XOSS's 52%. Diagnostics also leads on iOS requirement (9.0 vs 18). XOSS's advantage is update cadence (every 6 weeks vs every 28 months) and rating (4.4 vs 4.1). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
XOSS holds the better App Store score, 4.4 against 4.1. That said, the two scores are not equally well evidenced: XOSS has 397 ratings behind it against 10, so its average is the more settled of the two. Written reviews complicate that: 100% of Diagnostics's written reviews are positive against 52% of XOSS's, so the app with the better star average is not the one people write more warmly about.
Diagnostics ships an update every 28 months, XOSS every 6 weeks. The most recent releases landed on October 8, 2026 and October 21, 2026 respectively.
| Parameter | Diagnostics | XOSS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (10 ratings) | 4.4 (397 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 52.2% of reviews |
| Number of ratings | 10 | 397 — better |
| Update frequency | Every 28 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 18 |
| Further details — not scored | ||
| Size | 5 MB | 110 MB |
| Age rating | 4+ | 4+ |
| Developer | Racelogic | XOSS HONG KONG CO., LIMITED |
Customer experience
Diagnostics
XOSS
Bugs and requests
Diagnostics
Not enough reviews yet to summarise bugs or requests.
XOSS
Reported bugs
4 issues- App crashes after recent updates
- Unable to update device firmware on iOS
- Sensor connectivity problems
- Incorrect distance/speed measurements
Requested features
4 requests- Add more detailed metrics (e.g. elevation, power)
- Improve route editing and privacy controls
- Introduce automatic sync options
- Provide more comprehensive data export capabilities
In-app purchases
Diagnostics
No in-app purchases
XOSS
No in-app purchases
