# Horizontal Accelerometer vs GFG GridGuru

The clearest difference is ads: GFG GridGuru at none against Horizontal Accelerometer's shown. Horizontal Accelerometer's advantage is update cadence (every 6 weeks vs every 7 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Horizontal Accelerometer ships an update every 6 weeks, GFG GridGuru every 7 months. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Horizontal Accelerometer | GFG GridGuru |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 7 months |
| Monetization | Ad-supported | — |
| Size | 6 MB | 60 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Takao Ichimura](https://appshunter.io/developer/1474061593) | [GFG Power](https://appshunter.io/developer/1806093315) |

## What reviewers say

### 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


### GFG GridGuru

[App page](https://appshunter.io/ios/app/gfg-gridguru/id6744109040)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Horizontal Accelerometer free?

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

### Is GFG GridGuru free?

GFG GridGuru is free to download, with no in-app purchases.

### Do Horizontal Accelerometer or GFG GridGuru have ads?

Horizontal Accelerometer shows ads; GFG GridGuru does not.

### Which is updated more often, Horizontal Accelerometer or GFG GridGuru?

Horizontal Accelerometer ships an update every 6 weeks, and GFG GridGuru every 7 months. Most recently, Horizontal Accelerometer was updated on October 7, 2026 and GFG GridGuru on October 2, 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.*