# K vs HF Smart

The clearest difference is update cadence: HF Smart at every 2 months against K's every 21 months. K's advantage is iOS requirement (13.0 vs 15.6). 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.

K ships an update every 21 months, HF Smart every 2 months. The most recent releases landed on September 22, 2026 and September 4, 2026 respectively.

## The numbers

| Metric | K | HF Smart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.7 (128 ratings)](https://appshunter.io/ios/app/hf-smart/id6448104103/reviews)** |
| Number of ratings | — | **128** |
| Positive reviews | — | 13.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 230 MB | 21 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Guangdong KSTE lighting industry Co.,Ltd](https://appshunter.io/developer/1604704962) | [鉴深 徐](https://appshunter.io/developer/1649273564) |

## What reviewers say

### K

[App page](https://appshunter.io/ios/app/k-smart/id1604704960)

**Features:** macOS Compatibility

**In-app purchases:** none


### HF Smart

[App page](https://appshunter.io/ios/app/hf-smart/id6448104103)

Control your smart lighting fixtures with this intelligent lighting control application. Easily manage your lights for enhanced ambiance and convenience.

**Highlights:** Intelligent lighting control, Control smart lighting fixtures, Ambiance enhancement, Convenient light management

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Works as intended
- 🚀 Easy pairing process
- 💡 Useful app functionality

**What reviewers complain about**

- 🐛 App not working after updates
- 🐛 Pairing issues
- 🐛 Language settings not working
- 🐛 App not connecting to device

**Reported bugs**

- App not responding after recent update
- Unable to change language settings
- Pairing process not working consistently

**Requested features**

- Improve pairing instructions
- Add dark mode option
- Provide better language support


## Frequently asked questions

### Is K free?

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

### Is HF Smart free?

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

### Do K or HF Smart have ads?

Neither K nor HF Smart shows ads.

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

K ships an update every 21 months, and HF Smart every 2 months. Most recently, K was updated on September 22, 2026 and HF Smart on September 4, 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.*