IMSC91 vs NexzDAS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IMSC91
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C91是国内首款基于iOS系统开发，专门支持“防盗匹配”、“里程表调校”、“保养灯归零”、“电子刹车匹配”、“电子节气门匹配”、“电子转向匹配”、“胎压灯复位”、“齿讯学习”的手机版智能匹配平台。 （防盗匹配、遥控器手工匹配、里程表调校 功能率先发布，其他功能后续更新，敬请期待）
NexzDAS
This app provides comprehensive vehicle diagnostics, including full-system scanning and specialized functions like service resets and brake adjustments. It offers detailed diagnostic reports and an extensive online database for trouble code inquiries, all accessible via a portable Bluetooth device.
- Full-system vehicle diagnosis
- OBD2 code reading and clearing
- Specialized reset and calibration functions
- Online trouble code inquiry
- Bluetooth 4.2 connectivity
- Professional diagnostic reports
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### Highlights & Advantages - Cost-effective and portable configuration combining VCI and App - Bluetooth 4.2 connection with dual-mode compatibility - Wide coverage of vehicle brands across Asia, Europe, Americas, with free download available - Full-system diagnosis for quick scanning of all vehicle electronic control systems - Professional diagnostic reports providing detailed interpretations of trouble codes - Customizable special functions, such as service reset, tire pressure monitoring, electronic parking brake, etc. - Robust database supporting online trouble code inquiry - Intelligent operation: one-click feedback/upgrade/screenshot within the App ### Function Display 1. **Full-system Diagnosis** Vehicle selection → Model selection → Year selection → Automatic scan → Full-system scan → Diagnostic report 2. **OBD2 Diagnosis** Code reading, code clearing, live data, freeze frame, smoke test, oxygen sensor test, mode 6, MIL status, vehicle information, battery test 3. **Special Functions** Service reset, tire pressure reset, electronic parking brake adjustment, battery reset, injector coding, ABS bleeding, steering angle calibration, throttle body adaptation, DPF regeneration 4. **Auxiliary Functions** - One-click trouble code inquiry: Search code definitions and descriptions online via the robust database - One-click data management: Check stored information (including images and videos) anytime, anywhere - One-click vehicle inquiry: Look up vehicle information online by manually entering VIN or scanning directly - One-click feedback: Contact us promptly to report issues via the top-right button - One-click update: Quick in-App updates without the need for a computer
Screenshots
Verdict
The clearest difference is update cadence: NexzDAS at every 10 days against IMSC91's every 2 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
IMSC91 ships an update every 2 months, NexzDAS every 10 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.
| Parameter | IMSC91 | NexzDAS |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.1 (13 ratings) — better |
| Positive reviews | — | 11.1% of reviews |
| Number of ratings | — | 13 — better |
| Update frequency | Every 2 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 148 MB | 797 MB |
| Age rating | 4+ | 4+ |
| Developer | 北京金奔腾汽车科技有限公司 | 美泉 黄 |
In-app purchases
IMSC91
No in-app purchases
NexzDAS
No in-app purchases
