# Sensor Data Recorder vs Accident Diagram DB

The clearest difference is in-app purchases: Sensor Data Recorder at none against Accident Diagram DB's 3. Accident Diagram DB's advantage is update cadence (fortnightly vs every 26 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Accident Diagram DB sells 3 in-app purchases, starting at $9.99 per month. Sensor Data Recorder asks for nothing beyond the download.

Sensor Data Recorder ships an update every 26 months, Accident Diagram DB fortnightly. The most recent releases landed on June 6, 2026 and December 23, 2025 respectively.

## The numbers

| Metric | Sensor Data Recorder | Accident Diagram DB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/sensor-data-recorder/id1438400138/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 26 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 8 MB | 75 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nils Ackermann](https://appshunter.io/developer/1308556492) | [Dark Bear Web Solutions LLC](https://appshunter.io/developer/1003167140) |

## What reviewers say

### 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


### Accident Diagram DB

[App page](https://appshunter.io/ios/app/accident-diagram-db/id1645317500)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Six Months | $49.99 | per 6 months |
| One Years Subscription | $89.99 | per year |


## Frequently asked questions

### Is Sensor Data Recorder free?

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

### Is Accident Diagram DB free?

Accident Diagram DB is free to download, with in-app purchases available.

### Do Sensor Data Recorder or Accident Diagram DB have ads?

Neither Sensor Data Recorder nor Accident Diagram DB shows ads.

### Which is updated more often, Sensor Data Recorder or Accident Diagram DB?

Sensor Data Recorder ships an update every 26 months, and Accident Diagram DB fortnightly. Most recently, Sensor Data Recorder was updated on June 6, 2026 and Accident Diagram DB on December 23, 2025.

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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.*