# SunSaviour vs 空气MQTT

The clearest difference is device support: 空气MQTT at 2 against SunSaviour's —. On price, in-app purchases and iOS requirement there is nothing between them.

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

## The numbers

| Metric | SunSaviour | 空气MQTT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | Yes |
| Size | 106 MB | 32 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Siseli New Energy Cooperative Enterprise](https://appshunter.io/developer/1673700559) | [远大洁净空气科技有限公司](https://appshunter.io/developer/1510525132) |

## What reviewers say

### SunSaviour

[App page](https://appshunter.io/ios/app/sunsaviour/id6479504313)

**In-app purchases:** none


### 空气MQTT

[App page](https://appshunter.io/ios/app/mqtt/id6499257886)

**In-app purchases:** none


## Frequently asked questions

### Is SunSaviour free?

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

### Is 空气MQTT free?

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

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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.*