# G vs SensorLogger

The clearest difference is price: G at Free against SensorLogger's $0.99. G also leads on update cadence (every 4 days vs every 3 weeks) and device support (4 vs 1). SensorLogger's advantage is rating (4.5 vs 3.9) and in-app purchases (none vs 2). On ratings volume and ads there is nothing between them.

G is free to download; SensorLogger costs $0.99 up front. G sells 2 one-off in-app purchases. SensorLogger asks for nothing beyond the download.

SensorLogger holds the better App Store score, 4.5 against 3.9. Both are backed by a comparable volume of ratings — 7 and 11 respectively. Written reviews point the same way: 50% of G's written reviews are positive against 78% of SensorLogger's.

G ships an update every 4 days, SensorLogger every 3 weeks. The most recent releases landed on July 4, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | G | SensorLogger |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [3.9 (7 ratings)](https://appshunter.io/ios/app/g-field-recorder/id1154585693/reviews) | **[4.5 (11 ratings)](https://appshunter.io/ios/app/sensorlogger-csv-export/id1505203547/reviews)** |
| Number of ratings | 7 | **11** |
| Positive reviews | 50.0% of reviews | **78.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 35 MB | 2 MB |
| Requires iOS | **14.7** | 16.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stratos Perception, LLC](https://appshunter.io/developer/721934057) | [Kazumasa Wakamori](https://appshunter.io/developer/1505203546) |

## What reviewers say

### G

[App page](https://appshunter.io/ios/app/g-field-recorder/id1154585693)

This app records and analyzes motion data from your device's sensors, including acceleration, rotation, and GPS information. It's designed for experiments, performance analysis, and tracking various movements. Data can be exported in CSV format and is resistant to loss.

**Highlights:** Logs and plots motion data (acceleration, rotation), Records ground speed, altitude, distance, and displacement, Virtually unlimited recording time, Programmable data acquisition control, Remote control via Apple Watch, Configurable acceleration reference frame, Export data in CSV format

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Multi-Plot | $0.99 | one-time |
| Professional | $3.99 | one-time |


### 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


## Frequently asked questions

### Is G free?

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

### Is SensorLogger free?

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

### Which has better reviews, G or SensorLogger?

SensorLogger is rated higher. G averages 3.9 out of 5 from 7 ratings, while SensorLogger averages 4.5 from 11 ratings.

### Do G or SensorLogger have ads?

Neither G nor SensorLogger shows ads.

### Which is updated more often, G or SensorLogger?

G ships an update every 4 days, and SensorLogger every 3 weeks. Most recently, G was updated on July 4, 2026 and SensorLogger 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.*