# Sensor Data Recorder vs Watch Sensor Logger

The clearest difference is ads: Sensor Data Recorder at none against Watch Sensor Logger's shown. Sensor Data Recorder also leads on iOS requirement (14.0 vs 17.0). On price, review sentiment, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sensor Data Recorder ships an update every 26 months, Watch Sensor Logger every 25 months. The most recent releases landed on September 27, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Sensor Data Recorder | Watch Sensor Logger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/sensor-data-recorder/id1438400138/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 26 months | **Every 25 months** |
| Monetization | Free | Free |
| Size | 8 MB | 17 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Nils Ackermann](https://appshunter.io/developer/1308556492) | [yuya kanbetsunawa](https://appshunter.io/developer/1597026161) |

## What reviewers say

### Sensor Data Recorder

[App page](https://appshunter.io/ios/app/sensor-data-recorder/id1438400138)

This utility app records gyroscope, accelerometer, and audio data from your device. Export your recorded data as CSV or M4A files for further processing, particularly for machine learning applications. Your data remains private and is only accessible on your device.

**Highlights:** Record gyroscope and accelerometer data, Record audio simultaneously, Label recordings for ML workflow, Adjust data capture frequency, Download or email data, Export as CSV and M4A

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Sensor Data Recorder free?

Sensor Data Recorder is free to download, with no in-app purchases.

### Is Watch Sensor Logger free?

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

### Do Sensor Data Recorder or Watch Sensor Logger have ads?

Watch Sensor Logger shows ads; Sensor Data Recorder does not.

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

Sensor Data Recorder ships an update every 26 months, and Watch Sensor Logger every 25 months. Most recently, Sensor Data Recorder was updated on September 27, 2026 and Watch Sensor Logger on October 1, 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.*