# 车联网+智管 vs Quantum Messages

The clearest difference is in-app purchases: 车联网+智管 at none against Quantum Messages's 1. 车联网+智管 also leads on iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Quantum Messages sells 1 one-off in-app purchase. 车联网+智管 asks for nothing beyond the download.

## The numbers

| Metric | 车联网+智管 | Quantum Messages |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 121 MB | 2 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [伟骏 吴](https://appshunter.io/developer/1116031949) | [嘉胜 陈](https://appshunter.io/developer/1508884749) |

## What reviewers say

### 车联网+智管

[App page](https://appshunter.io/ios/app/plus/id6747071039)

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

**In-app purchases:** none


### Quantum Messages

[App page](https://appshunter.io/ios/app/quantum-messages/id6747940707)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $19.99 | one-time |


## Frequently asked questions

### Is 车联网+智管 free?

车联网+智管 is free to download, with no in-app purchases.

### Is Quantum Messages free?

Quantum Messages is free to download, with in-app purchases available.

### Do 车联网+智管 or Quantum Messages have ads?

Neither 车联网+智管 nor Quantum Messages shows ads.

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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.*