# Horizontal Accelerometer vs Accelerometer ∞

The clearest difference is in-app purchases: Horizontal Accelerometer at none against Accelerometer ∞'s 2. Horizontal Accelerometer also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). Accelerometer ∞'s advantage is update cadence (every 2 weeks vs every 6 weeks). On price, review sentiment and ads there is nothing between them.

Both are free to download. Accelerometer ∞ sells 2 in-app purchases, starting at $1.99 per month. Horizontal Accelerometer asks for nothing beyond the download.

Horizontal Accelerometer ships an update every 6 weeks, Accelerometer ∞ every 2 weeks. The most recent releases landed on September 12, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Horizontal Accelerometer | Accelerometer ∞ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (61 ratings)](https://appshunter.io/ios/app/accelerometer/id6621273087/reviews)** |
| Number of ratings | — | **61** |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 6 MB | 16 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Takao Ichimura](https://appshunter.io/developer/1474061593) | [Fawkes Wei](https://appshunter.io/developer/432767536) |

## 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


### Accelerometer ∞

[App page](https://appshunter.io/ios/app/accelerometer/id6621273087)

Visualize device motion data in real-time with dynamic graphs. Analyze sensor information, calibrate your device, and explore various possibilities. This utility app offers a unique perspective on your device's movement.

**Highlights:** Real-time motion data visualization, Stunning graph displays, Sensor calibration, Data analysis, Explore endless possibilities

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |
| Pro Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Horizontal Accelerometer free?

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

### Is Accelerometer ∞ free?

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

### Do Horizontal Accelerometer or Accelerometer ∞ have ads?

Both Horizontal Accelerometer and Accelerometer ∞ show ads.

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

Horizontal Accelerometer ships an update every 6 weeks, and Accelerometer ∞ every 2 weeks. Most recently, Horizontal Accelerometer was updated on September 12, 2026 and Accelerometer ∞ on September 17, 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.*