# SensorLogger vs QR Direct

The clearest difference is price: QR Direct at Free against SensorLogger's $0.99. QR Direct also leads on device support (3 vs 1). SensorLogger's advantage is in-app purchases (none vs 1) and update cadence (every 3 weeks vs every 28 months). On ads and iOS requirement there is nothing between them.

QR Direct is free to download; SensorLogger costs $0.99 up front. QR Direct sells 1 one-off in-app purchase. SensorLogger asks for nothing beyond the download.

SensorLogger ships an update every 3 weeks, QR Direct every 28 months. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | SensorLogger | QR Direct |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.5 (10 ratings)](https://appshunter.io/ios/app/sensorlogger-csv-export/id1505203547/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 78.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 28 months |
| Monetization | Paid | — |
| Size | 2 MB | 2 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kazumasa Wakamori](https://appshunter.io/developer/1505203546) | [萍萍 席](https://appshunter.io/developer/1072576872) |

## What reviewers say

### SensorLogger

[App page](https://appshunter.io/ios/app/sensorlogger-csv-export/id1505203547)

Record acceleration, gyroscope, and magnetic field data in real-time or at higher frequencies. Export your sensor readings as a CSV file for further analysis. Optimize data collection by toggling visualization settings.

**Highlights:** Log acceleration, gyroscope, and magnetic field, Synchronous sensor measurement, Real-time data visualization, Adjustable sampling frequency, Export data as CSV file

**Features:** Vision Pro support

**In-app purchases:** none


### QR Direct

[App page](https://appshunter.io/ios/app/qr-direct/id1614831658)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 流畅版 | $0.99 | one-time |


## Frequently asked questions

### Is SensorLogger free?

SensorLogger costs $0.99, with no in-app purchases.

### Is QR Direct free?

QR Direct is free to download, with in-app purchases available.

### Do SensorLogger or QR Direct have ads?

Neither SensorLogger nor QR Direct shows ads.

### Which is updated more often, SensorLogger or QR Direct?

SensorLogger ships an update every 3 weeks, and QR Direct every 28 months. Most recently, SensorLogger was updated on October 24, 2026 and QR Direct on October 23, 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.*