# i温暖 vs Zisun无尘空调

The clearest difference is iOS requirement: Zisun无尘空调 at 13.0 against i温暖's 16. On price, update cadence, 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.

i温暖 ships an update every 6 weeks, Zisun无尘空调 every 5 weeks. The most recent releases landed on October 8, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | i温暖 | Zisun无尘空调 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Size | 23 MB | 17 MB |
| Requires iOS | 16 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [温州市博奕成套设备工程有限公司](https://appshunter.io/developer/1726143288) | [Chongqing Zaisheng Purifying Equipment Co., Ltd.](https://appshunter.io/developer/1798897518) |

## What reviewers say

### i温暖

[App page](https://appshunter.io/ios/app/i/id6476188427)

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

**In-app purchases:** none


### Zisun无尘空调

[App page](https://appshunter.io/ios/app/zisun/id6742537079)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is i温暖 free?

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

### Is Zisun无尘空调 free?

Zisun无尘空调 is free to download, with no in-app purchases.

### Do i温暖 or Zisun无尘空调 have ads?

Neither i温暖 nor Zisun无尘空调 shows ads.

### Which is updated more often, i温暖 or Zisun无尘空调?

i温暖 ships an update every 6 weeks, and Zisun无尘空调 every 5 weeks. Most recently, i温暖 was updated on October 8, 2026 and Zisun无尘空调 on October 17, 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.*