OBD JScan vs Flashcal+
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
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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/
Flashcal+
This utility calibrates your Jeep Wrangler's speedometer after tire or gear changes. It offers TPMS adjustment and is designed for JK, JL, and JT models.
- Speedometer calibration
- Tire size adjustment
- Gear ratio adjustment
- TPMS on/off
- Supports JK, JL, JT models
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Jeep® Wrangler and Ford Bronco® are among the most highly modified vehicles on the road today. Whether you're upgrading tires, changing wheels, or personalizing vehicle settings, proper calibration is essential for accurate vehicle data and overall drivability. Flashcal+ makes it easy with tire size calibration, speedometer correction, TPMS adjustments, and a wide range of vehicle customization options. Built for enthusiasts who want more control over their vehicle, Flashcal+ helps you personalize your driving experience both on and off the road. Compatible with Jeep® Wrangler JK and JL, Jeep® Gladiator JT, and Ford Bronco® models, Flashcal+ delivers the features you need in one simple, easy-to-use tool. To review the privacy policy visit https://superchips.com/flashcal-privacy/
Screenshots
Verdict
The clearest difference is rating: OBD JScan at 4.7 against Flashcal+'s 2.3. OBD JScan also leads on review sentiment (79% vs 50%) and ratings volume (1.3K vs 6). Flashcal+'s advantage is monetization model (free vs free with in-app purchases). On price, update cadence, ads and in-app purchases 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 and Flashcal+ sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
OBD JScan holds the better App Store score, 4.7 against 2.3. That said, the two scores are not equally well evidenced: OBD JScan has 1.3K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 79% of OBD JScan's written reviews are positive against 50% of Flashcal+'s.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 25, 2026 and September 11, 2026 respectively.
| Parameter | OBD JScan | Flashcal+ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.3K ratings) — better | 2.3 (6 ratings) |
| Positive reviews | 79.5% of reviews — better | 50.0% of reviews |
| Number of ratings | 1.3K — better | 6 |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 403 MB | 124 MB |
| Age rating | 12+ | 4+ |
| Developer | Piotr Bialic | Holley Performance Products |
Customer experience
OBD JScan
Flashcal+
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
Flashcal+
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
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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
Flashcal+
- Pedal Booster$24.99
- Power Tuning$124.99
- Features and Options$124.99
Show 1 moreShow fewer
- PCM Cross Ship2 variants$274.99
Questions
Is OBD JScan free?
Is Flashcal+ free?
Which has better reviews, OBD JScan or Flashcal+?
Do OBD JScan or Flashcal+ have ads?
Which is updated more often, OBD JScan or Flashcal+?
Other comparisons
