# Device Motion Detective vs Sofive Ref

The clearest difference is update cadence: Device Motion Detective at every 13 months against Sofive Ref's every 64 months. Device Motion Detective also leads on iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Device Motion Detective ships an update every 13 months, Sofive Ref every 64 months. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Device Motion Detective | Sofive Ref |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/device-motion-detective/id884501447/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 13 months** | Every 64 months |
| Monetization | Free | — |
| Size | 2 MB | 36 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [方 沈](https://appshunter.io/developer/882296318) | [Sofive, Inc.](https://appshunter.io/developer/969840916) |

## 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


### Sofive Ref

[App page](https://appshunter.io/ios/app/sofive-ref/id1550367094)

**Features:** macOS Compatibility

**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 Sofive Ref free?

Sofive Ref is free to download, with no in-app purchases.

### Do Device Motion Detective or Sofive Ref have ads?

Neither Device Motion Detective nor Sofive Ref shows ads.

### Which is updated more often, Device Motion Detective or Sofive Ref?

Device Motion Detective ships an update every 13 months, and Sofive Ref every 64 months. Most recently, Device Motion Detective was updated on October 7, 2026 and Sofive Ref on October 8, 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.*