# G vs Horizontal Accelerometer

The clearest difference is in-app purchases: Horizontal Accelerometer at none against G's 2. G's advantage is ads (none vs shown) and update cadence (every 4 days vs every 6 weeks). On price, review sentiment, device support and iOS requirement there is nothing between them.

Both are free to download. G sells 2 one-off in-app purchases. Horizontal Accelerometer asks for nothing beyond the download.

G ships an update every 4 days, Horizontal Accelerometer every 6 weeks. The most recent releases landed on September 26, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | G | Horizontal Accelerometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (7 ratings)](https://appshunter.io/ios/app/g-field-recorder/id1154585693/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 35 MB | 6 MB |
| Requires iOS | 14.7 | **13.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stratos Perception, LLC](https://appshunter.io/developer/721934057) | [Takao Ichimura](https://appshunter.io/developer/1474061593) |

## 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 |


### Horizontal Accelerometer

[App page](https://appshunter.io/ios/app/horizontal-accelerometer/id6444095874)

This tool measures real-time horizontal acceleration, deceleration, and lateral G-force for automobiles. It features color-coded zones and sounds for easy understanding while driving and can also be used for engineering education and evaluating structural rigidity.

**Highlights:** Real-time horizontal acceleration measurement, Measures deceleration and lateral G-force, Color zones and sound alerts for values, Calibration for accurate readings, Peak hold and max value tracking, Adjustable color zone thresholds and sound

**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 Horizontal Accelerometer free?

Horizontal Accelerometer is free to download, with no in-app purchases.

### Do G or Horizontal Accelerometer have ads?

Horizontal Accelerometer shows ads; G does not.

### Which is updated more often, G or Horizontal Accelerometer?

G ships an update every 4 days, and Horizontal Accelerometer every 6 weeks. Most recently, G was updated on September 26, 2026 and Horizontal Accelerometer on October 7, 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.*