BT1 vs OBD JScan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BT1
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.
- 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
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Calm Your Auto Woes! One in ten vehicles in the US have the Check Engine Light on. Is yours one of them? Was your vehicle one of the 20 million recalled in 2010? Simply connect our BT1 (Bluetooth) or GL1 (cabled) automotive scanner (sold separately) to your vehicle; pair with your iPhone or iPod touch, or iPad; and remove the risks, and surprises, from driving. - Decode the Check Engine Light - Check for vehicle recalls - Check for Special Service Bulletins Like having your own personal mechanic riding next to you!
OBD JScan
This app provides advanced diagnostics for Jeep, Chrysler, and Dodge vehicles. It allows users to read and clear trouble codes, view live sensor data, and access settings across all vehicle modules, including ABS and transmission.
- Read/Clear Diagnostic Trouble Codes
- Access Live Data from all sensors
- View vehicle settings
- Access all vehicle modules (ABS, Transmission, etc.)
- Identify module, VIN, Part Number, and Version
- Share vehicle trouble codes
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What is OBD JScan? OBD JScan is powerful Jeep & Chrysler & Dodge diagnostic application. JScan allows reading standard Diagnostic Trouble Codes (emission related), general Live Data and Adaptations and much more. Thats not all. JScan can access all modules avalable on your vehicle. ABS, Steering Column, Automatic Transimmsion, Radio, Sway Bar, Havac and many more. Some supported cars: Jeep Wrangler JK, Jeep Wrangler JL - additional hardware required to bypass security gateway* Jeep Wrangler JT - additional hardware required to bypass security gateway* Jeep Wrangler 4XE - additional hardware required to bypass security gateway* Jeep Grand Cherokee WK Jeep Grand Cherokee, WK2 11-13 Jeep Grand Cherokee WK2 14-21 - 18+ - additional hardware required to bypass security gateway* Jeep Commander XK Jeep Liberty/Cherokee KK, Jeep Compass, Jeep Patriot MK Dodge Avenger Dodge Grand Caravan RT, Dodge Journey, Dodge Caliber Dodge Durango 2004-2009 Dodge Durango 2011-2013 Dodge Durango 2014-2023* Dodge Ram Dodge Nitro Dodge Magnum Dodge Challenger - 08-14 Dodge Challenger - 14+ Dodge Charger- 06-10 Dodge Charger- 11+ Dodge Avenger Chrysler Town&Country RT Chrysler 200 Chrysler 300C Chrysler 300 Chrysler Sebring Chrysler Aspen and more.. * WK2 2018+ = requires securit bypass cable * Dodge Durango 2018+ = requires securit bypass cable * Dodge Ram 2018+ = requires securit bypass cable * JL requires security bypass cable * JT requires security bypass cable * http://jscan.net/jl-jt-security-bypass/ What can I Do with JScan? JScan allows you to access, diagnostic trouble codes and Live Data in all modules. You can easily Read, Clear, Share vehicle Trouble Codes. View Live Data from all sensors in vehicle. View vehicle settings. Identify module, Vin, Part Number, Version and more. Recommended device: - OBD ELM 327 compatible device is required to make app work as expected. Recommended adapters: - iCar Pro 4.0 Bluetooth LE (Bluetooth) - Vlinker MC+ (Bluetooth) - for newer cars - OBD Link MX+ Bluetooth (Bluetooth) More info about supported and recommended OBD adapters: http://jscan.net/supported-and-not-supported-obd-adapters/ Facebook: https://www.facebook.com/obdjscan/ Website: http://jscan.net/
Screenshots
Verdict
The clearest difference is rating: OBD JScan at 4.7 against BT1's 2.4. OBD JScan also leads on review sentiment (80% vs 48%) and update cadence (every 3 weeks vs every 4 months). BT1's advantage is in-app purchases (none vs 8) and iOS requirement (10.0 vs 13.0). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. OBD JScan sells 7 one-off in-app purchases. BT1 asks for nothing beyond the download.
OBD JScan holds the better App Store score, 4.7 against 2.4. That said, the two scores are not equally well evidenced: OBD JScan has 1.3K ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 48% of BT1's written reviews are positive against 80% of OBD JScan's.
BT1 ships an update every 4 months, OBD JScan every 3 weeks. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.
| Parameter | BT1 | OBD JScan |
|---|---|---|
| Price | Free | Free |
| Rating | 2.4 (14 ratings) | 4.7 (1.3K ratings) — better |
| Positive reviews | 47.7% of reviews | 79.6% of reviews — better |
| Number of ratings | 14 | 1.3K — better |
| Update frequency | Every 4 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 10.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 5 MB | 403 MB |
| Age rating | 4+ | 12+ |
| Developer | GoPoint Technology, Inc | Piotr Bialic |
Customer experience
BT1
OBD JScan
User reviews
BT1
From 14 App Store ratingsWhat we love
- 👍 Easy to use
- 👍 Works as advertised (sometimes)
- 👍 Good hardware
- 👍 Cool technology
- 👍 Great for basic diagnostics
Room to improve
- 🐛 Crashes frequently
- 🐛 Incompatible with newer iOS versions
- 🐛 Does not detect fault codes accurately
- 🐛 Limited functionality
- 🐛 Outdated software
OBD JScan
From 1.3K App Store ratingsWhat we love
- 🚀 Easy to use
- 🔧 Powerful customization options
- 👍 Excellent customer support
- 💡 Useful diagnostic and monitoring features
- 🔓 Enables features otherwise locked by dealer
Room to improve
- 🐛 Occasional connectivity issues
- 🔌 Requires additional hardware purchase
- ⚠️ Compatibility issues with newer vehicle models
- 🕰️ Slow performance in certain scenarios
Bugs and requests
BT1
Reported bugs
25 issues- App crashes when scanning vehicle
- App crashes after 30 seconds
- App not working anymore
- Cannot select make/model
- App not updated for newer vehicles
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- App not compatible with newer IOS versions
- Initialization failed error
- Cannot install app on older devices due to iOS requirements
- Bluetooth device has trouble connecting
- App crashes upon setup
- Blank boxes for make/model selection
- App freezes and glitches
- App locks up when entering car data
- App crashes every time
- Cannot get past create account screen
- App crashes only once (user reported)
- Difficult or time-consuming to connect
- Http error when connected
- App crashes when connected
- Doesn't clear check engine light
- No data stream info
- App asks for vehicle info and searches recalls
- Less functions than cabled version
- Software too basic
- Does not clear codes or reset trouble lights
Requested features
8 requests- Update app for newer iOS versions
- Add more vehicle makes/models
- Improve fault code detection
- Add live data stream
- Firmware update for Bluetooth device
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- More detailed vehicle stats
- Constant data recording
- More advanced features
OBD JScan
Reported bugs
2 issues- Inability to save/export diagnostic data
- Inconsistent behavior when changing vehicle settings
Requested features
4 requests- Expanded vehicle compatibility
- Improved stability and reliability
- Enhanced user interface and guidance
- Integration with other vehicle apps/services
In-app purchases
BT1
No in-app purchases
OBD JScan
- + 1 garage license2 variants$9.99
- 1 VIN license$20.99
- Add 1 VIN$20.99
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- Add 1 VIN Vehicle Slot$20.99
- 3 VIN licenses$54.99
- 5 VIN Licenses$84.99
- 10 VIN Licenses$149.99
