# PowerTraxx GPS Tracker vs QMD3 Stroke Trainer/Analyzer

The clearest difference is in-app purchases: QMD3 Stroke Trainer/Analyzer at none against PowerTraxx GPS Tracker's 4. QMD3 Stroke Trainer/Analyzer also leads on update cadence (monthly vs every 2 months). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. PowerTraxx GPS Tracker sells 4 one-off in-app purchases. QMD3 Stroke Trainer/Analyzer asks for nothing beyond the download.

PowerTraxx GPS Tracker ships an update every 2 months, QMD3 Stroke Trainer/Analyzer monthly. The most recent releases landed on October 19, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | PowerTraxx GPS Tracker | QMD3 Stroke Trainer/Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (4 ratings)](https://appshunter.io/ios/app/qmd3-stroke-traineranalyzer/id1282490670/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 284 MB | 11 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zeitsprung intelligente Prozesse GmbH & Co. KG](https://appshunter.io/developer/959293778) | [Mosens LLC](https://appshunter.io/developer/1282490669) |

## What reviewers say

### PowerTraxx GPS Tracker

[App page](https://appshunter.io/ios/app/powertraxx-gps-tracker/id959293779)

This application reliably tracks and analyzes your rides and activities with detailed maps and performance data. Enhance your personal performance and share photos of your achievements. It's your perfect companion for various cycling activities.

**Highlights:** Tracks and analyzes rides and activities, Provides detailed maps and performance data, Enables sharing of achievements with photos, Professional analysis tools, Suitable for various cycling activities

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mobile Premium 30 Days | $1.99 | one-time |
| Mobile Premium 90 Days | $4.99 | one-time |
| Mobile Premium 6 Months | $8.99 | one-time |
| Mobile Premium 1 Year | $15.99 | one-time |


### QMD3 Stroke Trainer/Analyzer

[App page](https://appshunter.io/ios/app/qmd3-stroke-traineranalyzer/id1282490670)

This app analyzes your pool stroke using a Bluetooth-enabled device attached to your cue. It provides detailed 3D data, graphical playback, and audible alerts to help identify and correct flaws, improving your game.

**Highlights:** Bluetooth cue device integration, 3D stroke data transmission, Automatic shot recording, Graphical stroke playback, Stroke velocity charts, Audible 'as you stroke' alerts, Comprehensive practice shot metrics

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PowerTraxx GPS Tracker free?

PowerTraxx GPS Tracker is free to download, with in-app purchases available.

### Is QMD3 Stroke Trainer/Analyzer free?

QMD3 Stroke Trainer/Analyzer is free to download, with no in-app purchases.

### Do PowerTraxx GPS Tracker or QMD3 Stroke Trainer/Analyzer have ads?

Neither PowerTraxx GPS Tracker nor QMD3 Stroke Trainer/Analyzer shows ads.

### Which is updated more often, PowerTraxx GPS Tracker or QMD3 Stroke Trainer/Analyzer?

PowerTraxx GPS Tracker ships an update every 2 months, and QMD3 Stroke Trainer/Analyzer monthly. Most recently, PowerTraxx GPS Tracker was updated on October 19, 2026 and QMD3 Stroke Trainer/Analyzer on October 6, 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.*