# ECU vs Steer

The clearest difference is in-app purchases: ECU at none against Steer's 2. ECU also leads on iOS requirement (11.0 vs 26.1). Steer's advantage is update cadence (every 2 months vs every 33 months). On price, ads and device support there is nothing between them.

Both are free to download. Steer sells 2 in-app purchases, starting at $9.99 per month. ECU asks for nothing beyond the download.

ECU ships an update every 33 months, Steer every 2 months. The most recent releases landed on October 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ECU | Steer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 26.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 2 months** |
| Monetization | — | Freemium |
| Size | 25 MB | 26 MB |
| Requires iOS | **11.0** | 26.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Appleby Italiana Srl](https://appshunter.io/developer/1458734548) | [Smarters Engineered](https://appshunter.io/developer/1821193944) |

## What reviewers say

### ECU

[App page](https://appshunter.io/ios/app/ecu-18-manager/id1462414446)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is ECU free?

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

### Is Steer free?

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

### Do ECU or Steer have ads?

Neither ECU nor Steer shows ads.

### Which is updated more often, ECU or Steer?

ECU ships an update every 33 months, and Steer every 2 months. Most recently, ECU was updated on October 4, 2026 and Steer on October 31, 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.*