# RIO Data View vs Horizontal Accelerometer

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

Both are free to download. Horizontal Accelerometer sells 1 one-off in-app purchase. RIO Data View asks for nothing beyond the download.

RIO Data View ships an update every 3 months, Horizontal Accelerometer every 6 weeks. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | RIO Data View | Horizontal Accelerometer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | — | Ad-supported |
| Size | 4 MB | 8 MB |
| Requires iOS | **14.5** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Japan Vacuum Instruments Ltd.](https://appshunter.io/developer/556391381) | [Takao Ichimura](https://appshunter.io/developer/1474061593) |

## What reviewers say

### RIO Data View

[App page](https://appshunter.io/ios/app/rio-data-view/id1325922186)

**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 RIO Data View free?

RIO Data View 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 RIO Data View or Horizontal Accelerometer have ads?

Horizontal Accelerometer shows ads; RIO Data View does not.

### Which is updated more often, RIO Data View or Horizontal Accelerometer?

RIO Data View ships an update every 3 months, and Horizontal Accelerometer every 6 weeks. Most recently, RIO Data View was updated on November 11, 2026 and Horizontal Accelerometer on November 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.*