# SensorLog vs IMU Research

The clearest difference is price: IMU Research at Free against SensorLog's $2.99. IMU Research also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 4). SensorLog's advantage is ratings volume (40 vs 1). On update cadence, ads and device support there is nothing between them.

IMU Research is free to download; SensorLog costs $2.99 up front. SensorLog sells 4 one-off in-app purchases. IMU Research asks for nothing beyond the download.

IMU Research holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: SensorLog has 40 ratings behind it against 1, so its average is the more settled of the two.

SensorLog ships an update every 2 months, IMU Research every 3 months. The most recent releases landed on September 30, 2026 and July 3, 2026 respectively.

## The numbers

| Metric | SensorLog | IMU Research |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.4 (40 ratings)](https://appshunter.io/ios/app/sensorlog/id388014573/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/imu-research/id1046372531/reviews)** |
| Number of ratings | **40** | 1 |
| Positive reviews | 69.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 4 MB | 20 MB |
| Requires iOS | 18.0 | **9.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bernd Thomas](https://appshunter.io/developer/385441510) | [I Measure U](https://appshunter.io/developer/1035194936) |

## What reviewers say

### SensorLog

[App page](https://appshunter.io/ios/app/sensorlog/id388014573)

Record and stream sensor data from your iPhone, iPad, and Apple Watch. Export data in CSV or JSON format, or send it via TCP, UDP, or HTTP requests. Integrates with Core ML models for advanced analysis.

**Highlights:** Log sensor data up to 100Hz, Stream data via TCP/UDP or HTTP, Export data as CSV or JSON, Remote client/server functionality, Siri and Shortcuts integration, Core ML model support, HealthKit data export from Apple Watch

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy me a Coffee ... | $0.99 | one-time |
| Spend me an Ice Cream ... | $1.99 | one-time |
| Offer me a glas of Wine ... | $5.99 | one-time |
| Invite me for a Cocktail ... | $9.99 | one-time |


### 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


## Frequently asked questions

### Is SensorLog free?

SensorLog costs $2.99, and also offers in-app purchases.

### Is IMU Research free?

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

### Which has better reviews, SensorLog or IMU Research?

IMU Research is rated higher. SensorLog averages 4.4 out of 5 from 40 ratings, while IMU Research averages 5.0 from 1 ratings.

### Do SensorLog or IMU Research have ads?

Neither SensorLog nor IMU Research shows ads.

### Which is updated more often, SensorLog or IMU Research?

SensorLog ships an update every 2 months, and IMU Research every 3 months. Most recently, SensorLog was updated on September 30, 2026 and IMU Research on July 3, 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.*