GWSCAN vs CarMD Connect
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GWSCAN
Unlock your vehicle's potential with advanced diagnostics. Scan and clear engine codes, view live data, and reset maintenance lights from your driveway. Covers over 85 manufacturers with a 2-year warranty and free updates.
- OBDII Diagnostics
- In-depth system scans
- Live engine data display
- Maintenance light reset
- Covers 85+ manufacturers
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GWSCAN DIAGNOSTICS THAT BREAK ALL THE RULES! Unlock your inner mechanic with the tool that shows you what the pro knows. A must-have for every vehicle owner. The GWSCAN offers essential diagnostics with advanced features, covering 85+ manufacturers, a 2-year warranty, and free software updates—without breaking the bank. Diagnose and reset check engine lights from your driveway, saving time and money. Take control of your car care with confidence and convenience—choose GWSCAN. Detailed Features: 1) OBDII Diagnostics Offers standard OBDII diagnostics for engines, including scanning and clearing of Diagnostic Trouble Codes (DTCs). 2)In-depth Check Performs comprehensive system scans on vehicles, including the chassis and body, to display manufacturer fault codes, provide definitions, and enable code clearing. 3)Live Data Displays live engine data during idle, operational, or full load conditions, including real-time information on RPM, battery voltage, air and fluid temperatures, and engine load. 4)Maintenance Light Reset Reset the maintenance counter and turn off the maintenance light after finishing maintenance.
CarMD Connect
This app connects to a plug-in device to provide real-time vehicle health alerts, location sharing, and car tracking. It offers AI-powered car advice, maintenance reminders, and repair cost estimates, helping you manage your vehicle's health and your family's safety.
- Real-time vehicle health alerts
- Location sharing and car tracking
- AI chatbot for car questions
- Repair cost estimation
- Maintenance reminders
- Trip logging and export
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CarMD Connect is the car care app that helps you understand your vehicle, make smarter repair decisions, earn rewards, and stay connected to the people and vehicles you care about. Use the app on its own or pair it with the optional CarMD Connect device for continuous vehicle monitoring, repair shop-level scans, and advanced vehicle insights. No subscriptions. No hidden fees. ** Earn Rewards for Taking Care of Your Vehicle ** Earn rewards on eligible maintenance and repair services through CarMD's trusted repair network. Schedule appointments directly in the app and get rewarded for smarter car care. ** Know What's Going on with Your Vehicle ** Understand warning lights, vehicle symptoms, sounds, and smells before they become bigger problems. Get repair insights, estimated costs, and information to help you make confident repair decisions. Backed by the industry's most trusted vehicle health data. ** Ask CarMD ** Need help understanding a warning light, repair recommendation, maintenance need, or vehicle symptom? Ask CarMD provides personalized answers based on your specific vehicle and decades of real-world repair expertise. ** Stay on Top of Maintenance ** Track maintenance and repair history, receive service reminders, monitor vehicle health, and maintain records that can help maximize resale value. ** Keep Family Safe and Connected ** Share locations, receive safe arrival notifications, create geofencing alerts, get vehicle health updates, and manage emergency contacts for family members and household vehicles. Ideal for teen drivers, aging parents, and multi-vehicle households. ** Use CarMD Your Way ** Many CarMD Connect features work without a device, including rewards, service scheduling, Ask CarMD, maintenance reminders, and location sharing. Add the optional CarMD Connect device to unlock proactive vehicle health monitoring, repair shop-level diagnostic scans, advanced alerts and reports, and enhanced location accuracy. Since 2006, CarMD has helped millions of drivers diagnose vehicle problems, monitor vehicle health, and save money on car repairs.
Screenshots
Verdict
GWSCAN and CarMD Connect both sit at 4.4 stars, but that hides the real split: 68% of GWSCAN's written reviews are positive against 0% of CarMD Connect's. GWSCAN also leads on ratings volume (117 vs 8) and iOS requirement (13.0 vs 15.6). CarMD Connect's advantage is update cadence (every 3 weeks vs every 2 months). On price, rating, 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.4 for GWSCAN against 4.5 for CarMD Connect. That said, the two scores are not equally well evidenced: GWSCAN has 117 ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 68% of GWSCAN's written reviews are positive against 0% of CarMD Connect's.
GWSCAN ships an update every 2 months, CarMD Connect every 3 weeks. The most recent releases landed on November 12, 2026 and November 4, 2026 respectively.
| Parameter | GWSCAN | CarMD Connect |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (117 ratings) | 4.5 (8 ratings) — better |
| Positive reviews | 68.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 117 — better | 8 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 517 MB | 58 MB |
| Age rating | 12+ | 4+ |
| Developer | Apex Tool Group | CarMD.com Corporation |
Customer experience
GWSCAN
CarMD Connect
In-app purchases
GWSCAN
No in-app purchases
CarMD Connect
No in-app purchases









