# Watch Sensor Logger vs Xprompt

The clearest difference is price: Watch Sensor Logger at Free against Xprompt's $0.99. Watch Sensor Logger also leads on iOS requirement (17.0 vs 26.0). Xprompt's advantage is ads (none vs shown) and update cadence (every 4 months vs every 25 months). On in-app purchases and device support there is nothing between them.

Watch Sensor Logger is free to download; Xprompt costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Watch Sensor Logger ships an update every 25 months, Xprompt every 4 months. The most recent releases landed on October 21, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Watch Sensor Logger | Xprompt |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/watch-sensor-logger/id1634449655/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 25 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 17 MB | 9 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPad, Mac |
| Age rating | 4+ | 12+ |
| Developer | [yuya kanbetsunawa](https://appshunter.io/developer/1597026161) | [Caio Agra Lemos](https://appshunter.io/developer/1749628522) |

## What reviewers say

### Watch Sensor Logger

[App page](https://appshunter.io/ios/app/watch-sensor-logger/id1634449655)

Log detailed motion and GPS data from your Apple Watch. Export sensor readings like acceleration, attitude, and location as a CSV file for analysis. This app is exclusively designed for Apple Watch.

**Highlights:** Log sensor data, GPS tracking, Export to CSV, Acceleration logging, Attitude data, Time stamping

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Xprompt

[App page](https://appshunter.io/ios/app/xprompt-foundation-model-lab/id6759265802)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Watch Sensor Logger free?

Watch Sensor Logger is free to download, with no in-app purchases.

### Is Xprompt free?

Xprompt costs $0.99, with no in-app purchases.

### Do Watch Sensor Logger or Xprompt have ads?

Watch Sensor Logger shows ads; Xprompt does not.

### Which is updated more often, Watch Sensor Logger or Xprompt?

Watch Sensor Logger ships an update every 25 months, and Xprompt every 4 months. Most recently, Watch Sensor Logger was updated on October 21, 2026 and Xprompt on October 14, 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.*