# Steer vs Optimal Audio

The clearest difference is price: Steer at Free against Optimal Audio's $9.99. Optimal Audio's advantage is in-app purchases (none vs 2) and iOS requirement (18.6 vs 26.1). On ads and device support there is nothing between them.

Steer is free to download; Optimal Audio costs $9.99 up front. Steer sells 2 in-app purchases, starting at $9.99 per month. Optimal Audio asks for nothing beyond the download.

## The numbers

| Metric | Steer | Optimal Audio |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Freemium | — |
| Size | 26 MB | 18 MB |
| Requires iOS | 26.1 | **18.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Smarters Engineered](https://appshunter.io/developer/1821193944) | [Thomas Richardson](https://appshunter.io/developer/1887851473) |

## What reviewers say

### Steer

[App page](https://appshunter.io/ios/app/steer-obd2-car-scanner/id6461049378)

Transform your smartphone into a powerful OBD2 diagnostic tool. Read and clear fault codes, monitor real-time performance metrics, and test your vehicle's acceleration and emissions. Compatible with a wide range of car brands and OBD2 scanners.

**Highlights:** Universal OBD2 scanner compatibility, Read and erase fault codes, Real-time performance metrics, Acceleration and performance testing, Emission compliance checks, Supports various car brands

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OBD2 Pro | $9.99 | per month |
| OBD2 Pro | $19.99 | per year |


### Optimal Audio

[App page](https://appshunter.io/ios/app/optimal-audio/id6762044458)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Steer free?

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

### Is Optimal Audio free?

Optimal Audio costs $9.99, with no in-app purchases.

### Do Steer or Optimal Audio have ads?

Neither Steer nor Optimal Audio shows ads.

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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.*