# Device Motion Detective vs AutoX Data Logger

The clearest difference is review sentiment: AutoX Data Logger at 100% against Device Motion Detective's 0%. AutoX Data Logger also leads on rating (5.0 vs 1.0) and update cadence (fortnightly vs every 13 months). Device Motion Detective's advantage is price (Free vs $9.99) and iOS requirement (12.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

Device Motion Detective is free to download; AutoX Data Logger costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AutoX Data Logger holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: AutoX Data Logger has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Device Motion Detective's written reviews are positive against 100% of AutoX Data Logger's.

Device Motion Detective ships an update every 13 months, AutoX Data Logger fortnightly. The most recent releases landed on September 20, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Device Motion Detective | AutoX Data Logger |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/device-motion-detective/id884501447/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/autox-data-logger/id6742694051/reviews)** |
| Number of ratings | 1 | **8** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Fortnightly** |
| Monetization | **Free** | Paid |
| Size | 2 MB | 13 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [方 沈](https://appshunter.io/developer/882296318) | [Florian Muellerklein](https://appshunter.io/developer/1780914038) |

## What reviewers say

### Device Motion Detective

[App page](https://appshunter.io/ios/app/device-motion-detective/id884501447)

This utility app captures and stores detailed device motion data, including accelerometer, gyroscope, and magnetometer readings. Users can view real-time motion graphs or past records saved to the database. Data is recorded every second for up to 20 minutes per session.

**Highlights:** Raw accelerometer data recording, Raw gyroscope data recording, Raw magnetometer data recording, Processed device-motion data, Real-time motion graphs, Past motion record viewing, Data saved to database

**Features:** Vision Pro support

**In-app purchases:** none


### AutoX Data Logger

[App page](https://appshunter.io/ios/app/autox-data-logger/id6742694051)

Record and analyze autocross runs with video, GPS, and accelerometer data. Map courses, visualize performance with GPS traces and plots, and automatically start/stop recordings for hands-free logging. Export and import run data for comprehensive performance review.

**Highlights:** Course mapping with cone placement, Video, GPS, and accelerometer run recording, GPS traces and speed/g-force plots, Automatic start/stop recording, Data export and import, Optional sensor fusion for internal GPS

**In-app purchases:** none


## Frequently asked questions

### Is Device Motion Detective free?

Device Motion Detective is free to download, with no in-app purchases.

### Is AutoX Data Logger free?

AutoX Data Logger costs $9.99, with no in-app purchases.

### Which has better reviews, Device Motion Detective or AutoX Data Logger?

AutoX Data Logger is rated higher. Device Motion Detective averages 1.0 out of 5 from 1 ratings, while AutoX Data Logger averages 5.0 from 8 ratings.

### Do Device Motion Detective or AutoX Data Logger have ads?

Neither Device Motion Detective nor AutoX Data Logger shows ads.

### Which is updated more often, Device Motion Detective or AutoX Data Logger?

Device Motion Detective ships an update every 13 months, and AutoX Data Logger fortnightly. Most recently, Device Motion Detective was updated on September 20, 2026 and AutoX Data Logger on September 21, 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.*