# Aspect Ratio X Calc vs Horizontal Accelerometer

The clearest difference is in-app purchases: Aspect Ratio X Calc at none against Horizontal Accelerometer's 1. Aspect Ratio X Calc also leads on ads (none vs shown) and review sentiment (68% vs 50%). Horizontal Accelerometer's advantage is update cadence (every 6 weeks vs every 12 months). On price and device support there is nothing between them.

Both are free to download. Horizontal Accelerometer sells 1 one-off in-app purchase. Aspect Ratio X Calc asks for nothing beyond the download.

Aspect Ratio X Calc ships an update every 12 months, Horizontal Accelerometer every 6 weeks. The most recent releases landed on October 17, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Aspect Ratio X Calc | Horizontal Accelerometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/aspect-ratio-x-calc/id426015381/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | **68.4% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Every 6 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 1 MB | 8 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [4us](https://appshunter.io/developer/320142471) | [Takao Ichimura](https://appshunter.io/developer/1474061593) |

## What reviewers say

### Aspect Ratio X Calc

[App page](https://appshunter.io/ios/app/aspect-ratio-x-calc/id426015381)

This utility calculates unknown values in aspect ratios, useful for resizing images and clipping. It simplifies the process of determining proportional dimensions for various visual applications.

**Highlights:** Calculate unknown aspect ratio values, Input numbers for calculation, Resizing images, Clipping images, Simple interface

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads & Add Features | $5.99 | one-time |


## Frequently asked questions

### Is Aspect Ratio X Calc free?

Aspect Ratio X Calc is free to download, with no in-app purchases.

### Is Horizontal Accelerometer free?

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

### Do Aspect Ratio X Calc or Horizontal Accelerometer have ads?

Horizontal Accelerometer shows ads; Aspect Ratio X Calc does not.

### Which is updated more often, Aspect Ratio X Calc or Horizontal Accelerometer?

Aspect Ratio X Calc ships an update every 12 months, and Horizontal Accelerometer every 6 weeks. Most recently, Aspect Ratio X Calc was updated on October 17, 2026 and Horizontal Accelerometer on October 26, 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.*