# G vs Watch Sensor Logger

The clearest difference is rating: Watch Sensor Logger at 5.0 against G's 3.7. Watch Sensor Logger also leads on in-app purchases (none vs 2). G's advantage is ads (none vs shown) and update cadence (every 4 days vs every 25 months). On price, review sentiment and device support there is nothing between them.

Both are free to download. G sells 2 one-off in-app purchases. Watch Sensor Logger asks for nothing beyond the download.

Watch Sensor Logger holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: G has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 50% and 50% positive.

G ships an update every 4 days, Watch Sensor Logger every 25 months. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | G | Watch Sensor Logger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (9 ratings)](https://appshunter.io/ios/app/g-field-recorder/id1154585693/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/watch-sensor-logger/id1634449655/reviews)** |
| Number of ratings | **9** | 1 |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 25 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 35 MB | 17 MB |
| Requires iOS | **14.7** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Stratos Perception, LLC](https://appshunter.io/developer/721934057) | [yuya kanbetsunawa](https://appshunter.io/developer/1597026161) |

## What reviewers say

### G

[App page](https://appshunter.io/ios/app/g-field-recorder/id1154585693)

This app records and analyzes motion data from your device's sensors, including acceleration, rotation, and GPS information. It's designed for experiments, performance analysis, and tracking various movements. Data can be exported in CSV format and is resistant to loss.

**Highlights:** Logs and plots motion data (acceleration, rotation), Records ground speed, altitude, distance, and displacement, Virtually unlimited recording time, Programmable data acquisition control, Remote control via Apple Watch, Configurable acceleration reference frame, Export data in CSV format

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Multi-Plot | $0.99 | one-time |
| Professional | $3.99 | one-time |


### 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


## Frequently asked questions

### Is G free?

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

### Is Watch Sensor Logger free?

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

### Which has better reviews, G or Watch Sensor Logger?

Watch Sensor Logger is rated higher. G averages 3.7 out of 5 from 9 ratings, while Watch Sensor Logger averages 5.0 from 1 ratings.

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

Watch Sensor Logger shows ads; G does not.

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

G ships an update every 4 days, and Watch Sensor Logger every 25 months. Most recently, G was updated on October 24, 2026 and Watch Sensor Logger on October 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*