# DDLock vs ROPVACNIC

The clearest difference is update cadence: DDLock at every 4 months against ROPVACNIC's every 21 months. DDLock also leads on rating (2.9 vs 2.6). 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 2.6. Both are backed by a comparable volume of ratings — 99 and 52 respectively. Written reviews complicate that: 20% of DDLock's written reviews are positive against 26% of ROPVACNIC's, so the app with the better star average is not the one people write more warmly about.

DDLock ships an update every 4 months, ROPVACNIC every 21 months. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | DDLock | ROPVACNIC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (99 ratings)](https://appshunter.io/ios/app/ddlock/id6443749440/reviews)** | [2.6 (52 ratings)](https://appshunter.io/ios/app/ropvacnic/id6447345112/reviews) |
| Number of ratings | **99** | 52 |
| Positive reviews | 20.0% of reviews | **25.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 21 months |
| Monetization | Free | Free |
| Size | 407 MB | 230 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Shenzhen Kaadas Intelligent Technology Co.,Ltd](https://appshunter.io/developer/1155786021) | [Foshan Hongxiaoqiang Commerce and Trade Co., Ltd.](https://appshunter.io/developer/1681038889) |

## 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


### ROPVACNIC

[App page](https://appshunter.io/ios/app/ropvacnic/id6447345112)

Control your robot vacuum with customizable cleaning modes and scheduling. Monitor cleaning status, battery life, and consumables remotely. Easily start, recharge, or locate your device with simple controls.

**Highlights:** Customizable cleaning modes, One-key start/recharge, Remote monitoring of status, Scheduled cleaning, Robot locator function

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

**In-app purchases:** none


## Frequently asked questions

### Is DDLock free?

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

### Is ROPVACNIC free?

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

### Which has better reviews, DDLock or ROPVACNIC?

DDLock is rated higher. DDLock averages 2.9 out of 5 from 99 ratings, while ROPVACNIC averages 2.6 from 52 ratings.

### Do DDLock or ROPVACNIC have ads?

Neither DDLock nor ROPVACNIC shows ads.

### Which is updated more often, DDLock or ROPVACNIC?

DDLock ships an update every 4 months, and ROPVACNIC every 21 months. Most recently, DDLock was updated on October 10, 2026 and ROPVACNIC on October 11, 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.*