OBD JScan vs GWSMARTBT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Read full descriptionHide full description
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/
GWSMARTBT
This diagnostic tool offers advanced vehicle system scanning and bidirectional control for automotive technicians. It provides 23 professional reset functions and live data mapping, eliminating the need for expensive alternatives. Enjoy comprehensive coverage, a 2-year warranty, and free lifetime software updates.
- Full system diagnostics
- Bidirectional programming
- 23 pro reset functions
- Live data mapping
- OE level diagnostics
- Free lifetime software updates
Read full descriptionHide full description
DIAGNOSTICS THAT BREAK ALL THE RULES! For too long, techs have had to choose between unreliable tools that fall short of their needs and overpriced name-brand options that can lead to unnecessary debt. GEARWRENCH is changing that. Our GWSMARTBT provides advanced functionality with full system diagnostics, bidirectional programming, 23 pro reset functions, and live data mapping eliminating the need for compromise. No more missing features, no more hidden costs, and no more financial strain. With comprehensive coverage for over 180+ vehicle manufacturers, a 2-year warranty, and free lifetime software updates, we deliver a powerful solution that offers unparalleled value and performance—setting a new standard that other brands simply can’t match Detailed Features: · Read & clear codes for all available systems · OE level diagnostics enables full system scans, showing manufacturer fault codes and definitions · Full bidirectional control sends commands to the vehicle ECU to execute active tests on different vehicle components and subsystems · 23 pro vehicle reset/relearn functions throttle matching, ABS bleeding, TPMS reset, etc. · FREE software updates no subscriptions, no fees — EVER
Screenshots
Verdict
The clearest difference is rating: OBD JScan at 4.7 against GWSMARTBT's 3.3. OBD JScan also leads on review sentiment (80% vs 46%) and ratings volume (1.3K vs 66). GWSMARTBT's advantage is in-app purchases (none vs 8). On price, update cadence, 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. GWSMARTBT asks for nothing beyond the download.
OBD JScan holds the better App Store score, 4.7 against 3.3. That said, the two scores are not equally well evidenced: OBD JScan has 1.3K ratings behind it against 66, so its average is the more settled of the two. Written reviews point the same way: 80% of OBD JScan's written reviews are positive against 46% of GWSMARTBT's.
OBD JScan ships an update every 3 weeks, GWSMARTBT every 5 weeks. The most recent releases landed on October 19, 2026 and October 21, 2026 respectively.
| Parameter | OBD JScan | GWSMARTBT |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.3K ratings) — better | 3.3 (66 ratings) |
| Positive reviews | 79.6% of reviews — better | 46.3% of reviews |
| Number of ratings | 1.3K — better | 66 |
| Update frequency | Every 3 weeks — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 403 MB | 1.3 GB |
| Age rating | 12+ | 4+ |
| Developer | Piotr Bialic | Apex Tool Group |
Customer experience
OBD JScan
GWSMARTBT
Bugs and requests
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
GWSMARTBT
Not enough reviews yet to summarise bugs or requests.
In-app purchases
OBD JScan
- + 1 garage license2 variants$9.99
- 1 VIN license$20.99
- Add 1 VIN$20.99
Show 4 moreShow fewer
- Add 1 VIN Vehicle Slot$20.99
- 3 VIN licenses$54.99
- 5 VIN Licenses$84.99
- 10 VIN Licenses$149.99
GWSMARTBT
No in-app purchases









