# NexzScan vs EasyDiag4

The clearest difference is rating: EasyDiag4 at 2.9 against NexzScan's 2.1. EasyDiag4 also leads on iOS requirement (11.0 vs 15.6). NexzScan's advantage is update cadence (every 3 weeks vs every 18 months). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

EasyDiag4 holds the better App Store score, 2.9 against 2.1. Both are backed by a comparable volume of ratings — 27 and 19 respectively. Written reviews complicate that: 7% of NexzScan's written reviews are positive against 0% of EasyDiag4's, so the app with the better star average is not the one people write more warmly about.

NexzScan ships an update every 3 weeks, EasyDiag4 every 18 months. The most recent releases landed on September 19, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | NexzScan | EasyDiag4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.1 (27 ratings)](https://appshunter.io/ios/app/nexzscan/id1450589621/reviews) | **[2.9 (19 ratings)](https://appshunter.io/ios/app/easydiag4/id1505477232/reviews)** |
| Number of ratings | **27** | 19 |
| Positive reviews | **7.1% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 18 months |
| Monetization | Free | Free |
| Size | 141 MB | 114 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [美泉 黄](https://appshunter.io/developer/1465544231) | [Launch Tech Co., Ltd](https://appshunter.io/developer/447568418) |

## What reviewers say

### NexzScan

[App page](https://appshunter.io/ios/app/nexzscan/id1450589621)

This tool helps diagnose car engine issues by connecting to your vehicle's OBD port. It provides detailed reports on error codes, their causes, and live data, making car repair more efficient and accessible. The app offers a user-friendly interface and comprehensive vehicle support.

**Highlights:** Read and clear engine codes, Detailed diagnosis reports, Customized live data display, Powerful DTC definition database, One-key app updates, Bluetooth 4.2 connection

**Features:** macOS Compatibility

**In-app purchases:** none


### EasyDiag4

[App page](https://appshunter.io/ios/app/easydiag4/id1505477232)

This application connects to your vehicle via Bluetooth to perform comprehensive fault diagnosis across various systems. It supports reading and clearing diagnostic trouble codes, viewing data streams, and resetting service lamps, catering to the needs of the vehicle maintenance market.

**Highlights:** Bluetooth vehicle data interaction, One-click intelligent diagnosis, Full system fault diagnosis, Read DTCs, Read Data Streams, Clear DTCs, Reset Service Lamp

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NexzScan free?

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

### Is EasyDiag4 free?

EasyDiag4 is free to download, with no in-app purchases.

### Which has better reviews, NexzScan or EasyDiag4?

EasyDiag4 is rated higher. NexzScan averages 2.1 out of 5 from 27 ratings, while EasyDiag4 averages 2.9 from 19 ratings.

### Do NexzScan or EasyDiag4 have ads?

Neither NexzScan nor EasyDiag4 shows ads.

### Which is updated more often, NexzScan or EasyDiag4?

NexzScan ships an update every 3 weeks, and EasyDiag4 every 18 months. Most recently, NexzScan was updated on September 19, 2026 and EasyDiag4 on September 20, 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.*