DDLock vs HF Smart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DDLock
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.
- Unlock with smartphone
- Eliminates physical keys
- Convenient lock access
- Modern security solution
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Using the mobile phone to unlock the lock reduces the inconvenience of the user passing the entity key, and makes the lock more and more convenient to use
HF Smart
Control your smart lighting fixtures with this intelligent lighting control application. Easily manage your lights for enhanced ambiance and convenience.
- Intelligent lighting control
- Control smart lighting fixtures
- Ambiance enhancement
- Convenient light management
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This app is an intelligent lighting control app that allows you to control smart lighting fixtures.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | DDLock | HF Smart |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (99 ratings) — better | 1.7 (128 ratings) |
| Positive reviews | 20.0% of reviews — better | 13.8% of reviews |
| Number of ratings | 99 | 128 — better |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 407 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Kaadas Intelligent Technology Co.,Ltd | 鉴深 徐 |
Customer experience
DDLock
HF Smart
Bugs and requests
DDLock
Not enough reviews yet to summarise bugs or requests.
HF Smart
Reported bugs
3 issues- App not responding after recent update
- Unable to change language settings
- Pairing process not working consistently
Requested features
3 requests- Improve pairing instructions
- Add dark mode option
- Provide better language support
In-app purchases
DDLock
No in-app purchases
HF Smart
No in-app purchases
