# BT1 vs Steer

The clearest difference is in-app purchases: BT1 at none against Steer's 2. BT1 also leads on iOS requirement (10.0 vs 26.1). Steer's advantage is update cadence (every 2 months vs every 4 months). On price, review sentiment, 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. BT1 asks for nothing beyond the download.

BT1 ships an update every 4 months, Steer every 2 months. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | BT1 | Steer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (14 ratings)](https://appshunter.io/ios/app/bt1/id471892883/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | **47.7% of reviews** | 40.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | **Free** | Freemium |
| Size | 5 MB | 26 MB |
| Requires iOS | **10.0** | 26.1 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GoPoint Technology, Inc](https://appshunter.io/developer/351684882) | [Smarters Engineered](https://appshunter.io/developer/1821193944) |

## What reviewers say

### BT1

[App page](https://appshunter.io/ios/app/bt1/id471892883)

Decode your vehicle's Check Engine Light and check for recalls or service bulletins. Connect a compatible scanner to your device to gain insights into your car's health and avoid unexpected issues.

**Highlights:** Decode Check Engine Light, Check for vehicle recalls, Check for Special Service Bulletins, Connects via Bluetooth or cable scanner, Pairs with iPhone, iPod touch, or iPad

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 👍 Works as advertised (sometimes)
- 👍 Good hardware
- 👍 Cool technology
- 👍 Great for basic diagnostics

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Incompatible with newer iOS versions
- 🐛 Does not detect fault codes accurately
- 🐛 Limited functionality
- 🐛 Outdated software

**Reported bugs**

- App crashes when scanning vehicle
- App crashes after 30 seconds
- App not working anymore
- Cannot select make/model
- App not updated for newer vehicles

**Requested features**

- Update app for newer iOS versions
- Add more vehicle makes/models
- Improve fault code detection
- Add live data stream
- Firmware update for Bluetooth device


### 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 BT1 free?

BT1 is free to download, with no in-app purchases.

### Is Steer free?

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

### Do BT1 or Steer have ads?

Neither BT1 nor Steer shows ads.

### Which is updated more often, BT1 or Steer?

BT1 ships an update every 4 months, and Steer every 2 months. Most recently, BT1 was updated on October 21, 2026 and Steer on October 20, 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.*