# Watch Sensor Logger vs Accelerometer ∞

The clearest difference is in-app purchases: Watch Sensor Logger at none against Accelerometer ∞'s 2. Watch Sensor Logger also leads on device support (3 vs 1). Accelerometer ∞'s advantage is update cadence (every 2 weeks vs every 25 months). On price, review sentiment, ads and iOS requirement there is nothing between them.

Both are free to download. Accelerometer ∞ sells 2 in-app purchases, starting at $1.99 per month. Watch Sensor Logger asks for nothing beyond the download.

Watch Sensor Logger ships an update every 25 months, Accelerometer ∞ every 2 weeks. The most recent releases landed on October 1, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Watch Sensor Logger | Accelerometer ∞ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (65 ratings)](https://appshunter.io/ios/app/accelerometer/id6621273087/reviews)** |
| Number of ratings | — | **65** |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 25 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 17 MB | 16 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [yuya kanbetsunawa](https://appshunter.io/developer/1597026161) | [Fawkes Wei](https://appshunter.io/developer/432767536) |

## 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


### Accelerometer ∞

[App page](https://appshunter.io/ios/app/accelerometer/id6621273087)

Visualize device motion data in real-time with dynamic graphs. Analyze sensor information, calibrate your device, and explore various possibilities. This utility app offers a unique perspective on your device's movement.

**Highlights:** Real-time motion data visualization, Stunning graph displays, Sensor calibration, Data analysis, Explore endless possibilities

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |
| Pro Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Watch Sensor Logger free?

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

### Is Accelerometer ∞ free?

Accelerometer ∞ is free to download, with in-app purchases available.

### Do Watch Sensor Logger or Accelerometer ∞ have ads?

Both Watch Sensor Logger and Accelerometer ∞ show ads.

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

Watch Sensor Logger ships an update every 25 months, and Accelerometer ∞ every 2 weeks. Most recently, Watch Sensor Logger was updated on October 1, 2026 and Accelerometer ∞ on October 11, 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.*