# Horizontal Accelerometer vs UD MCA

The clearest difference is ads: UD MCA at none against Horizontal Accelerometer's shown. Horizontal Accelerometer's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.6). On price, update cadence and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on September 12, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Horizontal Accelerometer | UD MCA |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Monetization | Ad-supported | — |
| Size | 6 MB | 14 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Takao Ichimura](https://appshunter.io/developer/1474061593) | [UD Trucks Corporation](https://appshunter.io/developer/708408115) |

## 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


### UD MCA

[App page](https://appshunter.io/ios/app/ud-mca/id6739557534)

**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 UD MCA free?

UD MCA is free to download, with no in-app purchases.

### Do Horizontal Accelerometer or UD MCA have ads?

Horizontal Accelerometer shows ads; UD MCA does not.

### Which is updated more often, Horizontal Accelerometer or UD MCA?

Horizontal Accelerometer ships an update every 6 weeks, and UD MCA every 6 weeks. Most recently, Horizontal Accelerometer was updated on September 12, 2026 and UD MCA on September 18, 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.*