# Steer vs Selsystem

The clearest difference is in-app purchases: Selsystem at none against Steer's 2. Selsystem also leads on update cadence (every 8 days vs every 6 months) and iOS requirement (16.0 vs 26.1). 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. Selsystem asks for nothing beyond the download.

Steer ships an update every 6 months, Selsystem every 8 days. The most recent releases landed on September 2, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Steer | Selsystem |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 8 days** |
| Monetization | Freemium | — |
| Size | 25 MB | 99 MB |
| Requires iOS | 26.1 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Smarters Engineered](https://appshunter.io/developer/1821193944) | [PURPLESOFT SRL](https://appshunter.io/developer/1473279616) |

## 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 |


### Selsystem

[App page](https://appshunter.io/ios/app/selsystem/id6747822782)

**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 Selsystem free?

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

### Do Steer or Selsystem have ads?

Neither Steer nor Selsystem shows ads.

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

Steer ships an update every 6 months, and Selsystem every 8 days. Most recently, Steer was updated on September 2, 2026 and Selsystem on September 24, 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.*