# HVAC Smart vs cosytech

The clearest difference is update cadence: cosytech at every 3 weeks against HVAC Smart's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

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

HVAC Smart ships an update every 9 months, cosytech every 3 weeks. The most recent releases landed on September 10, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | HVAC Smart | cosytech |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Size | 26 MB | 36 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [ZHUHAI VDATA TECHNOLOGY CO., LTD](https://appshunter.io/developer/1239657281) | [Shenzhen Bibaoyuan Technology Co.,Ltd.](https://appshunter.io/developer/1106797455) |

## What reviewers say

### HVAC Smart

[App page](https://appshunter.io/ios/app/hvac-smart/id1511650678)

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

**In-app purchases:** none


### cosytech

[App page](https://appshunter.io/ios/app/cosytech/id6744680006)

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

**In-app purchases:** none


## Frequently asked questions

### Is HVAC Smart free?

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

### Is cosytech free?

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

### Do HVAC Smart or cosytech have ads?

Neither HVAC Smart nor cosytech shows ads.

### Which is updated more often, HVAC Smart or cosytech?

HVAC Smart ships an update every 9 months, and cosytech every 3 weeks. Most recently, HVAC Smart was updated on September 10, 2026 and cosytech on September 13, 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.*