# AIT LAUNCH vs Diag

The clearest difference is rating: Diag at 5.0 against AIT LAUNCH's 1.0. Diag also leads on review sentiment (33% vs 0%) and update cadence (every 2 months vs every 4 months). AIT LAUNCH's advantage is iOS requirement (8.0 vs 13.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Diag holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews point the same way: 0% of AIT LAUNCH's written reviews are positive against 33% of Diag's.

AIT LAUNCH ships an update every 4 months, Diag every 2 months. The most recent releases landed on November 12, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | AIT LAUNCH | Diag |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/ait-launch/id1236643578/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/diag-china/id1434670517/reviews)** |
| Number of ratings | 2 | **3** |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 20 MB | 249 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Launch Tech Co., Ltd](https://appshunter.io/developer/447568418) | [Autel Intelligent Technology Co., Ltd.](https://appshunter.io/developer/770747094) |

## What reviewers say

### AIT LAUNCH

[App page](https://appshunter.io/ios/app/ait-launch/id1236643578)

This app provides a smart solution for automotive inspections, allowing users to perform full vehicle system checks without manual interaction. View detailed inspection reports on your mobile device after plugging the terminal into your car's data link connector.

**Highlights:** Full vehicle system inspection, Professional inspection reports, Remote diagnosis capability, Value-added service for businesses, Push notifications for car owners, Share inspection reports

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

**In-app purchases:** none


### Diag

[App page](https://appshunter.io/ios/app/diag-china/id1434670517)

This diagnostic software package works with the MaxiAP200 to provide diagnostic functions for China vehicles. It offers a comprehensive suite of tools for vehicle maintenance and troubleshooting.

**Highlights:** Vehicle diagnostics, China vehicle support, Requires MaxiAP200, Maintenance tools, Troubleshooting functions

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

**In-app purchases:** none


## Frequently asked questions

### Is AIT LAUNCH free?

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

### Is Diag free?

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

### Which has better reviews, AIT LAUNCH or Diag?

Diag is rated higher. AIT LAUNCH averages 1.0 out of 5 from 2 ratings, while Diag averages 5.0 from 3 ratings.

### Do AIT LAUNCH or Diag have ads?

Neither AIT LAUNCH nor Diag shows ads.

### Which is updated more often, AIT LAUNCH or Diag?

AIT LAUNCH ships an update every 4 months, and Diag every 2 months. Most recently, AIT LAUNCH was updated on November 12, 2026 and Diag on November 4, 2026.

---

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