# DDLock vs HF Smart

The clearest difference is rating: DDLock at 2.9 against HF Smart's 1.7. DDLock also leads on iOS requirement (13.0 vs 15.6). HF Smart's advantage is update cadence (every 2 months vs every 4 months). On price, review sentiment, ratings volume and ads there is nothing between them.

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

DDLock holds the better App Store score, 2.9 against 1.7. Both are backed by a comparable volume of ratings — 99 and 128 respectively. Written reviews point the same way: 20% of DDLock's written reviews are positive against 14% of HF Smart's.

DDLock ships an update every 4 months, HF Smart every 2 months. The most recent releases landed on September 20, 2026 and September 4, 2026 respectively.

## The numbers

| Metric | DDLock | HF Smart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (99 ratings)](https://appshunter.io/ios/app/ddlock/id6443749440/reviews)** | [1.7 (128 ratings)](https://appshunter.io/ios/app/hf-smart/id6448104103/reviews) |
| Number of ratings | 99 | **128** |
| Positive reviews | **20.0% of reviews** | 13.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 407 MB | 21 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Kaadas Intelligent Technology Co.,Ltd](https://appshunter.io/developer/1155786021) | [鉴深 徐](https://appshunter.io/developer/1649273564) |

## What reviewers say

### DDLock

[App page](https://appshunter.io/ios/app/ddlock/id6443749440)

Unlock your doors using your smartphone, eliminating the need for physical keys. This app offers a more convenient and modern way to manage access to your locks.

**Highlights:** Unlock with smartphone, Eliminates physical keys, Convenient lock access, Modern security solution

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**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 DDLock free?

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

### Is HF Smart free?

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

### Which has better reviews, DDLock or HF Smart?

DDLock is rated higher. DDLock averages 2.9 out of 5 from 99 ratings, while HF Smart averages 1.7 from 128 ratings.

### Do DDLock or HF Smart have ads?

Neither DDLock nor HF Smart shows ads.

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

DDLock ships an update every 4 months, and HF Smart every 2 months. Most recently, DDLock was updated on September 20, 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.*