# DDLock vs Richmat Sleep

The clearest difference is device support: DDLock at 3 against Richmat Sleep's —. On price, in-app purchases and iOS requirement there is nothing between them.

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

## The numbers

| Metric | DDLock | Richmat Sleep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (99 ratings)](https://appshunter.io/ios/app/ddlock/id6443749440/reviews)** | — |
| Number of ratings | **99** | — |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 4 months | — |
| Monetization | Free | — |
| Size | 407 MB | 122 MB |
| Requires iOS | 13.0 | **12.1** |
| Devices | **iPhone, iPod, Apple Watch** | — |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Kaadas Intelligent Technology Co.,Ltd](https://appshunter.io/developer/1155786021) | [Qingdao Richmat Intelligence Technology Inc.](https://appshunter.io/developer/1814751082) |

## 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


### Richmat Sleep

[App page](https://appshunter.io/ios/app/richmat-sleep/id6504215475)

**In-app purchases:** none


## Frequently asked questions

### Is DDLock free?

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

### Is Richmat Sleep free?

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

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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.*