# IMSC91 vs NexzDAS

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.

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.

## The numbers

| Metric | IMSC91 | NexzDAS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.1 (13 ratings)](https://appshunter.io/ios/app/nexzdas/id1462867675/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | — | 11.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | — | Free |
| Size | 148 MB | 797 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [北京金奔腾汽车科技有限公司](https://appshunter.io/developer/939116243) | [美泉 黄](https://appshunter.io/developer/1465544231) |

## What reviewers say

### IMSC91

[App page](https://appshunter.io/ios/app/imsc91/id1250310840)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### NexzDAS

[App page](https://appshunter.io/ios/app/nexzdas/id1462867675)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IMSC91 free?

IMSC91 is free to download, with no in-app purchases.

### Is NexzDAS free?

NexzDAS is free to download, with no in-app purchases.

### Do IMSC91 or NexzDAS have ads?

Neither IMSC91 nor NexzDAS shows ads.

### Which is updated more often, IMSC91 or NexzDAS?

IMSC91 ships an update every 2 months, and NexzDAS every 10 days. Most recently, IMSC91 was updated on October 29, 2026 and NexzDAS on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*