# BT1 vs OBD2 Car Scanner

The clearest difference is review sentiment: BT1 at 48% against OBD2 Car Scanner's 4%. BT1 also leads on in-app purchases (none vs 3) and ads (none vs shown). OBD2 Car Scanner's advantage is rating (3.8 vs 2.4) and ratings volume (1.3K vs 14). On price and device support there is nothing between them.

Both are free to download. OBD2 Car Scanner sells 3 in-app purchases, starting at $4.99 per 7 days. BT1 asks for nothing beyond the download.

OBD2 Car Scanner holds the better App Store score, 3.8 against 2.4. That said, the two scores are not equally well evidenced: OBD2 Car Scanner has 1.3K ratings behind it against 14, so its average is the more settled of the two. Written reviews complicate that: 48% of BT1's written reviews are positive against 4% of OBD2 Car Scanner's, so the app with the better star average is not the one people write more warmly about.

BT1 ships an update every 4 months, OBD2 Car Scanner every 5 weeks. The most recent releases landed on October 13, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | BT1 | OBD2 Car Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.4 (14 ratings)](https://appshunter.io/ios/app/bt1/id471892883/reviews) | **[3.8 (1.3K ratings)](https://appshunter.io/ios/app/obd2-car-scanner-torque-fixd/id6479870894/reviews)** |
| Number of ratings | 14 | **1.3K** |
| Positive reviews | **47.7% of reviews** | 3.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 76 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [GoPoint Technology, Inc](https://appshunter.io/developer/351684882) | [Digital Car Key LLC](https://appshunter.io/developer/1693551925) |

## 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


### OBD2 Car Scanner

[App page](https://appshunter.io/ios/app/obd2-car-scanner-torque-fixd/id6479870894)

Diagnose your car's engine and transmission with real-time data, customizable dashboards, and emissions readiness checks. This app connects to your vehicle's OBD2 system via Wi-Fi or Bluetooth for comprehensive maintenance and performance insights.

**Highlights:** Comprehensive diagnostics, Customizable dashboard, Real-time monitoring, Emissions readiness check, ECU self-monitoring test, HUD mode

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Subscription | $4.99 | per 7 days |
| Monthly Premium Subscription | $11.99 | per month |
| Lifetime Premium | $49.99 | one-time |

**What reviewers like**

- 👍 Easy to use

**What reviewers complain about**

- 🚫 Doesn't work as expected
- 💰 Expensive subscription
- 🛑 Difficult to cancel subscription
- 🤖 Intrusive ads
- 🔌 Connectivity issues

**Reported bugs**

- App crashes frequently
- Unable to register device
- Inaccurate diagnostic readings

**Requested features**

- Free trial option
- Compatibility with more vehicle models


## Frequently asked questions

### Is BT1 free?

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

### Is OBD2 Car Scanner free?

OBD2 Car Scanner is free to download, with in-app purchases available.

### Which has better reviews, BT1 or OBD2 Car Scanner?

OBD2 Car Scanner is rated higher. BT1 averages 2.4 out of 5 from 14 ratings, while OBD2 Car Scanner averages 3.8 from 1.3K ratings.

### Do BT1 or OBD2 Car Scanner have ads?

OBD2 Car Scanner shows ads; BT1 does not.

### Which is updated more often, BT1 or OBD2 Car Scanner?

BT1 ships an update every 4 months, and OBD2 Car Scanner every 5 weeks. Most recently, BT1 was updated on October 13, 2026 and OBD2 Car Scanner on October 19, 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.*