# BT1 vs OBDocker

The clearest difference is rating: OBDocker at 4.2 against BT1's 2.4. OBDocker also leads on update cadence (fortnightly vs every 4 months). BT1's advantage is in-app purchases (none vs 7) and iOS requirement (10.0 vs 13.0). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. OBDocker sells 7 in-app purchases, starting at $2.99 per month. BT1 asks for nothing beyond the download.

OBDocker holds the better App Store score, 4.2 against 2.4. Both are backed by a comparable volume of ratings — 14 and 17 respectively. Written reviews split almost evenly too, at 48% and 47% positive.

BT1 ships an update every 4 months, OBDocker fortnightly. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | BT1 | OBDocker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.4 (14 ratings)](https://appshunter.io/ios/app/bt1/id471892883/reviews) | **[4.2 (17 ratings)](https://appshunter.io/ios/app/obdocker-obd2-car-scanner/id6466999549/reviews)** |
| Number of ratings | 14 | **17** |
| Positive reviews | **47.7% of reviews** | 46.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | **Free** | Freemium |
| Size | 5 MB | 238 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GoPoint Technology, Inc](https://appshunter.io/developer/351684882) | [Motorsure. Inc](https://appshunter.io/developer/1707281085) |

## 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- 🐛 Outdated software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


### OBDocker

[App page](https://appshunter.io/ios/app/obdocker-obd2-car-scanner/id6466999549)

This app acts as a professional OBD2 car scanner, enabling users to diagnose, service, and customize their vehicles. It offers comprehensive diagnostic modes, real-time data monitoring, and various service functions like oil resets and battery registration.

**Highlights:** Triple-mode diagnostics (Full-Systems, Multi-Systems, Quick Scan), Triple-mode live data monitoring (Health, Engine, Dash), Full-cycle service functions (Emissions Pre-Check, Control Tests, Oil Reset, Battery Registration), One-click car setting adjustments and retrofits, Supports a wide range of car brands and models

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OBD Pro (Monthly) | $2.99 | per month |
| OBD Pro Max (Monthly) | $7.99 | per month |
| OBD2 Pro (6 Months) | $14.99 | per 6 months |
| OBD Pro (Annual) | $17.99 | per year |
| Mechanic Access (Quarterly) | $19.99 | per 3 months |
| OBD Pro Max (Annual) | $47.99 | per year |
| OBD Pro Max (Permanent) | $119.99 | one-time |


## Frequently asked questions

### Is BT1 free?

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

### Is OBDocker free?

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

### Which has better reviews, BT1 or OBDocker?

OBDocker is rated higher. BT1 averages 2.4 out of 5 from 14 ratings, while OBDocker averages 4.2 from 17 ratings.

### Do BT1 or OBDocker have ads?

Neither BT1 nor OBDocker shows ads.

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

BT1 ships an update every 4 months, and OBDocker fortnightly. Most recently, BT1 was updated on October 5, 2026 and OBDocker on October 15, 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.*