# IMU Research vs Sensor Data Recorder

The clearest difference is rating: IMU Research at 5.0 against Sensor Data Recorder's 3.0. IMU Research also leads on update cadence (every 3 months vs every 26 months) and iOS requirement (9.0 vs 14.0). On price, ratings volume, ads 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.

IMU Research holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

IMU Research ships an update every 3 months, Sensor Data Recorder every 26 months. The most recent releases landed on September 20, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | IMU Research | Sensor Data Recorder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/imu-research/id1046372531/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/sensor-data-recorder/id1438400138/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 26 months |
| Monetization | Free | Free |
| Size | 20 MB | 8 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [I Measure U](https://appshunter.io/developer/1035194936) | [Nils Ackermann](https://appshunter.io/developer/1308556492) |

## What reviewers say

### IMU Research

[App page](https://appshunter.io/ios/app/imu-research/id1046372531)

This application captures precise biomechanics data using synchronized inertial sensors. It allows for multi-limb data collection in the field, with options to log data internally or stream it to an iOS device. Exported data can be analyzed on various platforms.

**Highlights:** Record and time-sync up to 8 sensors, High-frequency data capture (up to 1000Hz), Stream data via Bluetooth, Export data to CSV for analysis, Compatible with IMU BlueThunder Sensors, Integration with Vicon Nexus

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is IMU Research free?

IMU Research is free to download, with no in-app purchases.

### Is Sensor Data Recorder free?

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

### Which has better reviews, IMU Research or Sensor Data Recorder?

IMU Research is rated higher. IMU Research averages 5.0 out of 5 from 1 ratings, while Sensor Data Recorder averages 3.0 from 2 ratings.

### Do IMU Research or Sensor Data Recorder have ads?

Neither IMU Research nor Sensor Data Recorder shows ads.

### Which is updated more often, IMU Research or Sensor Data Recorder?

IMU Research ships an update every 3 months, and Sensor Data Recorder every 26 months. Most recently, IMU Research was updated on September 20, 2026 and Sensor Data Recorder on September 27, 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.*