# LNDU+ vs 凌度钥匙Plus

The clearest difference is update cadence: 凌度钥匙Plus at every 3 weeks against LNDU+'s every 6 months. 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.

LNDU+ ships an update every 6 months, 凌度钥匙Plus every 3 weeks. The most recent releases landed on September 9, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | LNDU+ | 凌度钥匙Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.6 (7 ratings)](https://appshunter.io/ios/app/lndu-plus/id6447084380/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 64 MB | 38 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [东莞卡卡电子科技有限公司](https://appshunter.io/developer/1140439649) | [Shenzhen Lingdu Auto Electronics Co., Ltd.](https://appshunter.io/developer/1727524224) |

## What reviewers say

### LNDU+

[App page](https://appshunter.io/ios/app/lndu-plus/id6447084380)

Control your smart home devices like doorbells, locks, and cameras from anywhere. This app offers a simple interface for enhanced home security and convenience with robust privacy protection.

**Highlights:** Remote doorbell management, Smart lock control, Camera monitoring, One-click operation, Simple interface, Privacy protection

**Features:** macOS Compatibility

**In-app purchases:** none


### 凌度钥匙Plus

[App page](https://appshunter.io/ios/app/plus/id6448126824)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LNDU+ free?

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

### Is 凌度钥匙Plus free?

凌度钥匙Plus is free to download, with no in-app purchases.

### Do LNDU+ or 凌度钥匙Plus have ads?

Neither LNDU+ nor 凌度钥匙Plus shows ads.

### Which is updated more often, LNDU+ or 凌度钥匙Plus?

LNDU+ ships an update every 6 months, and 凌度钥匙Plus every 3 weeks. Most recently, LNDU+ was updated on September 9, 2026 and 凌度钥匙Plus on September 17, 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.*