# LNDU vs Lockin  Smart

The clearest difference is rating: LNDU at 5.0 against Lockin  Smart's 3.1. Lockin  Smart's advantage is ratings volume (27 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

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

LNDU holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: Lockin  Smart has 27 ratings behind it against 1, so its average is the more settled of the two.

LNDU ships an update every 2 weeks, Lockin  Smart fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | LNDU | Lockin  Smart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lndu/id6477341732/reviews)** | [3.1 (27 ratings)](https://appshunter.io/ios/app/lockin-smart/id6739702442/reviews) |
| Number of ratings | 1 | **27** |
| Positive reviews | — | 42.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 608 MB | 280 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Lingdu Auto Electronics Co., Ltd.](https://appshunter.io/developer/1727524224) | [LOCKIN (U.S.) INC.](https://appshunter.io/developer/1502077789) |

## What reviewers say

### LNDU

[App page](https://appshunter.io/ios/app/lndu/id6477341732)

This app enables remote monitoring and control of intelligent devices like door locks, doorbells, and cameras. It supports real-time viewing, two-way audio, and device sharing with family members.

**Highlights:** Intelligent device distribution network access, Remote real-time monitoring, Two-way voice intercom, Device sharing with family, Remote authorization, Device configuration settings

**In-app purchases:** none


### Lockin  Smart

[App page](https://appshunter.io/ios/app/lockin-smart/id6739702442)

Manage and monitor your home remotely with smart unlocking, real-time lock dynamics, and two-way voice intercom. Features intelligent detection for people and packages, and integrates with smart home systems like Alexa and Google Home. Your privacy is protected with cloud-free biometric data storage.

**Highlights:** Smart unlocking with multiple key options, One-time and periodic password generation, Remote lock status viewing and control, Two-way voice intercom, Intelligent people and package detection, Matter ecosystem compatibility (Alexa, Google Home), Cloud-free biometric data storage

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

**In-app purchases:** none


## Frequently asked questions

### Is LNDU free?

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

### Is Lockin  Smart free?

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

### Which has better reviews, LNDU or Lockin  Smart?

LNDU is rated higher. LNDU averages 5.0 out of 5 from 1 ratings, while Lockin  Smart averages 3.1 from 27 ratings.

### Do LNDU or Lockin  Smart have ads?

Neither LNDU nor Lockin  Smart shows ads.

### Which is updated more often, LNDU or Lockin  Smart?

LNDU ships an update every 2 weeks, and Lockin  Smart fortnightly. Most recently, LNDU was updated on October 24, 2026 and Lockin  Smart on October 24, 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.*