ezOBD vs Viecar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ezOBD
Access detailed information about your car's health and performance. Monitor real-time engine parameters, fuel consumption, and diagnostic trouble codes. Features a customizable dashboard and graphing capabilities, with VIN decoding and emission test readiness checks.
- Real-time dashboard display
- Customizable gauges
- Real-time graphing
- Read and clear DTC codes
- Monitor fuel consumption
- VIN decoder
- Emission test readiness
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Get access information from the computer(s) in your car about its health and performance Important features and improvements will be based on feedback from our fast growing community Works with Wi-Fi or Bluetooth BLE (4.0) VIN decoder reads car info without having to type in Context sensitive help system Real-time dashboard display with fully customizable gauges Real-time user defined graphing of multiple signals Supports all standard PIDs Monitor fuel consumption while you drive and save money on gas Generate and email logs and diagnostic/repair reports Real-time engine & vehicle parameters Read and clear DTC engine codes Multiple ECU support Free unlimited updates Ad-free Emission test: make sure if your car will pass or fail an emission test View RPMs, coolant temperature, oxygen sensor readings All the OBD II protocols are supported Very simple to use! You don't even have to select your car model Works with inexpensive Bluetooth BLE or Wi-Fi OBD2 devices In graphs you can send a png file of graph along with the csv file We are working hard to enhance the product and will be releasing frequent updates. If you have feedback or questions, please reach out to us directly at support@ezobd.com
Viecar
This app connects to your vehicle's ECU via Bluetooth to perform comprehensive diagnostics and health checks. It helps identify potential issues early, analyze fuel consumption, and track driving behavior for improved efficiency and safety.
- 360° vehicle physical examination
- Early detection of vehicle sub-health
- Historical fuel consumption analysis
- Driving behavior recording and analysis
- Bluetooth 4.0 dual-mode connectivity
- Low power consumption
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Viecar 4.0 is a "software + hardware" multi-functional, all-round vehicle high-tech car detection tool. It adopts Bluetooth 4.0 dual-mode design, perfectly supports iOS devices, supports high-speed data transmission, and has low power consumption and ultra-power saving. advantage. By connecting the car ECU computer interface to achieve 360° full vehicle physical examination, early detection of vehicle sub-health can also ensure that the vehicle is found to be faulty as early as possible during the warranty period, so as to timely deal with the relevant interests and protect the interests of the owner; Historical fuel consumption and other multi-dimensional fuel consumption analysis and evaluation, so that owners can save money and save money; can also record driving behavior, analyze vehicle condition data, propose improvements, timely correct bad driving habits, and enable drivers to use their own car more humane. .
Screenshots
Verdict
The clearest difference is review sentiment: ezOBD at 75% against Viecar's 20%. ezOBD also leads on ratings volume (6 vs 1). Viecar's advantage is rating (4.0 vs 3.3). 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. Neither carries in-app purchases, so what you see is what you pay.
Viecar holds the better App Store score, 4.0 against 3.3. That said, the two scores are not equally well evidenced: ezOBD has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 75% of ezOBD's written reviews are positive against 20% of Viecar's, so the app with the better star average is not the one people write more warmly about.
ezOBD ships an update monthly, Viecar every 4 weeks. The most recent releases landed on October 25, 2026 and October 11, 2026 respectively.
| Parameter | ezOBD | Viecar |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (6 ratings) | 4.0 (1 ratings) — better |
| Positive reviews | 75.0% of reviews — better | 20.0% of reviews |
| Number of ratings | 6 — better | 1 |
| Update frequency | Monthly | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.1 — better | 9.0 |
| Further details — not scored | ||
| Size | 4 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | UP & RUNNING | Shenzhen Chaoyue Technology Development Co.,Ltd |
Customer experience
ezOBD
Viecar
In-app purchases
ezOBD
No in-app purchases
Viecar
No in-app purchases









