# Sensor Data Recorder — Record & export motion data

> Record and export device motion and audio data for machine learning. (iPhone/iPad app by Nils Ackermann.)

- Source: https://appshunter.io/ios/app/sensor-data-recorder/id1438400138 (this page in markdown: same URL + `.md`)
- Developer: [Nils Ackermann](https://appshunter.io/developer/1308556492)
- Category: Utilities, Productivity
- Price: Free
- Rating: 3.00/5 from 2 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 8 MB
- Languages: American English
- Released: 2018-10-12
- Data updated: 2026-06-06
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/sensor-data-recorder/id1438400138/reviews.md

## What is Sensor Data Recorder?

A lightweight utility in order to quickly and securely record CoreMotion gyroscope and accelerometer data together with audio data. CoreMotion data can be downloaded as a CSV (comma separated values) file and audio can be downloaded as a standard m4a file. 

Your data is only available on your device. Data will not be shared with others and will not be uploaded centrally.

Data can then be used for further processing, mostly for machine learning (ML) / deep learning purposes. 

Key highlights:
- Record gyroscope and accelerometer data directly from your phone's CoreMotion module
- In parallel, record audio from your phone's microphone
- Assign a label to each recording which can be later used in your machine learning workflow
- Choose the frequency of the data to be captured per second
- Download the captured data or send it via email
- Further process the data within your favorite machine learning environment, e.g. using Python

## Key features

- 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

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/sensor-data-recorder/id1438400138/reviews.md

### 1/5 — NOT FREE

*2026-02-23*

It's listed in the store as being entirely free, but features are locked. Ex: limited to seconds of recording sensor data. The app straight up says to buy it to have access to all features.

### 5/5 — Free and simple

*2020-07-30*

It’s free, and it does what it says it does. What’s not to like?

## Frequently asked questions about Sensor Data Recorder

### What kind of sensor data does Sensor Data Recorder record?

Sensor Data Recorder records gyroscope and accelerometer data directly from your phone's CoreMotion module. It also records audio from your phone's microphone in parallel.

### How can I use the recorded data from Sensor Data Recorder?

The recorded data can be downloaded as a CSV file for motion data and an M4A file for audio. This data is intended for further processing, primarily for machine learning or deep learning purposes.

### Is my data kept private when using Sensor Data Recorder?

Yes, your data is only available on your device. The app explicitly states that data will not be shared with others or uploaded centrally, ensuring user privacy.

### Can I customize the data recording frequency with Sensor Data Recorder?

Yes, you can choose the frequency of the data to be captured per second. This allows you to tailor the data collection to your specific needs for processing.

### What devices is Sensor Data Recorder compatible with?

Sensor Data Recorder is supported on iPhone and iPod devices. It is rated for ages 4 and up.

### How often is Sensor Data Recorder updated?

The latest version of Sensor Data Recorder is 1.20, and it was last updated on December 23, 2022. This indicates a relatively infrequent update cycle.

### What is the user rating for Sensor Data Recorder?

Sensor Data Recorder has a rating of 3.0 stars based on 2 ratings. This suggests mixed user reception.

### Does Sensor Data Recorder have ads?

No, Sensor Data Recorder does not contain advertisements. It is a free application without any ad-supported elements.

## Version history (last 3 releases)

### 1.20 — 2022-12-23

Support for Dark Mode.

### 1.1 — 2018-10-11

Updated screenshots.

### 1.0 — 2018-10-10

No release notes.

## Apps similar to Sensor Data Recorder

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [SensorLog](https://appshunter.io/ios/app/sensorlog/id388014573) | 4.4 (38) | $2.99 | Utilities |
| [Device Motion Detective](https://appshunter.io/ios/app/device-motion-detective/id884501447) | 1.0 (1) | Free | Utilities |
| [Sensors Toolbox - Multitool](https://appshunter.io/ios/app/sensors-toolbox-multitool/id1383687190) | 4.2 (133) | Free | Utilities |
| [Acc.elerometer](https://appshunter.io/ios/app/accelerometer/id1631020465) | — | Free | Utilities |
| [Sensor-App](https://appshunter.io/ios/app/sensor-app/id1466399692) | 5.0 (3) | Free | Utilities |
| [HemiPhysioData](https://appshunter.io/ios/app/hemiphysiodata/id1502983547) | — | Free | Utilities |

## More apps by Nils Ackermann

- [Boxing Coach Workout Timer](https://appshunter.io/ios/app/boxing-coach-workout-timer/id1308556493)
- [Blaze AI Workout Tracker](https://appshunter.io/ios/app/blaze-ai-workout-tracker/id1487388888)
- [Market Compass AI](https://appshunter.io/ios/app/market-compass-ai/id6756973410)
- [Memo: Math Trainer for Kids](https://appshunter.io/ios/app/memo-math-trainer-for-kids/id6763733046)
- [World Quiz: Uga Adventure](https://appshunter.io/ios/app/world-quiz-uga-adventure/id6769111108)

All apps by Nils Ackermann: https://appshunter.io/developer/1308556492

## Related topics

[nils ackermann](https://appshunter.io/ios/topics/nils-ackermann)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-06.*