Mucar vs DFirstCoder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mucar
Access professional-level automotive diagnostic functions, including reading and clearing fault codes, viewing live data, and performing special tests. Supports a wide range of vehicle manufacturers and offers a community forum for users to share insights and get support.
- OE-level professional functions
- Full OBD II diagnosis
- Maintenance light reset
- Support for 39+ manufacturers
- Automatic VIN reading
- Professional diagnostic reports
- In-app user community
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1. Profession functions refer to OE level functions, such as read/clear code, data flow diagram, read ECU, drive test, bidirectional special functions, etc. 2.Support full-function OBD II diagnosis, read data flow, freeze frame read IM/real-time data, read/clear fault code, vehicle on-board monitoring/computer system control operation and read vehicle information. 3.Support vehicle maintenance light return to normal. 4.Select any vehicle diagnostic software, covering up to 39 major automobile manufacturers. 5. Support automatic VIN reading and one-key diagnosis. 6. Clear interpretation of fault codes and generate professional diagnostic reports. 7. Be able to communicate with other users within the ThinkDiag community (share/help/support).
DFirstCoder
This app provides comprehensive vehicle diagnostics and customization for car owners. It offers one-click app features for easy operation, Bluetooth connectivity, and the ability to read/clear trouble codes, perform smog checks, and view live data. It supports a wide range of vehicle models.
- One-click apps for easy operation
- Comprehensive diagnostic features
- Bluetooth wireless connectivity
- Read and clear trouble codes
- Smog check functionality
- Live data display
- Supports VAG, BMW, Mercedes-Benz models
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DFirstCoder is an equipped with one-click apps feature professional OBDII Scanner App, designed for vehicle users who want to go beyond straightforward diagnostics. It includes comprehensive diagnostic features and customize numerous features of your vehicles with one-click, friendly to use even for beginners. Features: 1.2 in 1 OBDII coder. In addition to comprehensive diagnostic, one-click apps eliminate the need for tedious operation steps, making them easy to understand and operate, even for beginners. 2.Hot update. Updating the features or fixing bugs immediately without needing to update the app, it can respond to users needs and resolve functionality issue quickly. 3.Bluetooth connectivity, DFirstCoder's device supports wireless connection to your phone or tablet , and communicate with your vehicles rapidly. 4.Read & Clear codes, read the trouble codes of your vehicle and clear it. 5.Smog check. 6.MIL status. 7.Live data. 8.Freeze frame. 9.Mode 6 10.Covering a wide range of models, VAG Group, BMW Group, Mercedes-Benz, etc. are available. About DFirstCoder Information ———————————————————————————————————————————————————————————————————————————————————— DFirstCoder is an app to adapt DFirst device, owner of Shenzhen QIXIN Technology Co., LTD. It’s equipped with one-click apps and comprehensive diagnostic features. The app is free to download for user, and some of functions are free to use (e.g. clear temporary trouble codes,date-time synchronization and host reboot etc.). For more details, welcome to follow us, Website:www.dfirstcoder.com Facebook:https://www.facebook.com/qixinglobal Email: support@dfirstcoder.com Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Mucar at none against DFirstCoder's 8. Mucar also leads on ratings volume (382 vs 5) and iOS requirement (9.0 vs 13.0). DFirstCoder's advantage is rating (4.8 vs 4.6) and review sentiment (67% vs 50%). 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. DFirstCoder sells 8 in-app purchases, starting at $108.99 per year. Mucar asks for nothing beyond the download.
DFirstCoder holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Mucar has 382 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 50% of Mucar's written reviews are positive against 67% of DFirstCoder's.
Mucar ships an update every 2 months, DFirstCoder every 3 weeks. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.
| Parameter | Mucar | DFirstCoder |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (382 ratings) | 4.8 (5 ratings) — better |
| Positive reviews | 49.6% of reviews | 66.7% of reviews — better |
| Number of ratings | 382 — better | 5 |
| Update frequency | Every 2 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, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 500 MB | 95 MB |
| Age rating | 17+ | 17+ |
| Developer | THINKCAR INC | Shenzhen QiXin Technology Co., Ltd. |
Customer experience
Mucar
DFirstCoder
Bugs and requests
Mucar
Reported bugs
20 issues- TCM fault cannot be cleared
- App crashes during report generation
- Functions removed after updates (Hyundai, Kia, special functions)
- App crashes or freezes
- Connection errors
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- Bluetooth connectivity issues
- Login process fails
- App becomes blank or empty after update
- Cannot read errors
- App crashes when communicating with car
- Data stream issues
- Special functions not appearing
- App not working after update
- Cannot register account
- App not loading or showing white screen
- Cannot read specific car blocks (e.g., ECM)
- SAS reset not working
- App not detecting certain car models
- App not working on iPhone after update
- App not updating on iPhone
Requested features
20 requests- Add Turkish language support
- Add Perodua and Proton car support
- Improve Russian translation and fix abbreviations
- Add VAZ support for iOS
- Add Haval support for iOS
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- Add Chery support for iOS
- Add Citroen support for iOS
- Add Bulgarian language support
- Add CarPlay app support
- Add proper screen scaling for iPad
- Add daily, weekly, or yearly subscription options
- Add more car manufacturers to the iOS version
- Add support for specific car models (e.g., Jeep Renegade Flex 1.8)
- Improve data stream readability
- Add translator for iPhone
- Add full Russian localization
- Improve app interface and design
- Add payment options via phone bill
- Add support for specific car blocks (e.g., ECM)
- Add support for specific functions (e.g., SAS reset)
DFirstCoder
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Mucar
No in-app purchases
DFirstCoder
- Pro Plan Subscription$108.991 Year
- Pro Plan Subscription (Family)$158.991 Year
- 350 QD$4.99
- 700 QD$9.95
- 1400 QD$19.49
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- 3500 QD$49.99
- 7000 QD$96.99
- 10500 QD$145.99
