# HF vs Smart Heat

The clearest difference is update cadence: Smart Heat at every 5 weeks against HF's every 17 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.

HF ships an update every 17 months, Smart Heat every 5 weeks. The most recent releases landed on October 26, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | HF | Smart Heat |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 5 weeks** |
| Size | 4 MB | 45 MB |
| Requires iOS | **12.0** | 12.2 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hi-Flying](https://appshunter.io/developer/588224788) | [Solareast heat pump co.,Ltd](https://appshunter.io/developer/1660560477) |

## What reviewers say

### HF

[App page](https://appshunter.io/ios/app/hf-smartlink-v8/id1093336666)

**Features:** macOS Compatibility

**In-app purchases:** none


### Smart Heat

[App page](https://appshunter.io/ios/app/smart-heat-pump/id1660560475)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HF free?

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

### Is Smart Heat free?

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

### Do HF or Smart Heat have ads?

Neither HF nor Smart Heat shows ads.

### Which is updated more often, HF or Smart Heat?

HF ships an update every 17 months, and Smart Heat every 5 weeks. Most recently, HF was updated on October 26, 2026 and Smart Heat on September 19, 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.*