LNDU vs Lockin Smart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LNDU
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.
- Intelligent device distribution network access
- Remote real-time monitoring
- Two-way voice intercom
- Device sharing with family
- Remote authorization
- Device configuration settings
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1、Support the distribution network and access of intelligent devices such as door locks, doorbells and cameras 2、Support remote real-time monitoring and two-way voice intercom 3、Support sharing devices and remote authorisation of family members. 4、Support relevant configuration settings for devices
Lockin Smart
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.
- 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
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"Welcome to Lockin Smart App - your smart manager, help you guard and monitor your home anytime, anywhere! -Smart unlocking, my device my master! ①Multiple smart key options, easy to realize a safe and fast unlocking experience. ②Support one-time password, periodic password, convenient for visitors to enter and exit safely. -APP in hand, easy control ①Can remotely view the lock dynamics, realize one-key remote door opening and closing. ②Two-way voice intercom, remote communication without obstacles. -Intelligent detection, safe and intelligent control Precise detection of people and packages helps you capture important information at the first time. -Compatible with your smart home system Access to the Matter ecosystem, easy access to Alexa, Google Home and other voice-controlled devices -Privacy protection for peace of mind Fingerprints, palm veins and other biometric information are stored in the door lock and not uploaded in the cloud, protecting your privacy and providing peace of mind. If you have any questions, please contact support@lockin.com"
Screenshots
Verdict
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.
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.
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. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.
| Parameter | LNDU | Lockin Smart |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 3.1 (27 ratings) |
| Positive reviews | — | 42.9% of reviews |
| Number of ratings | 1 | 27 — better |
| Update frequency | Every 2 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 608 MB | 280 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Lingdu Auto Electronics Co., Ltd. | LOCKIN (U.S.) INC. |
Customer experience
LNDU
Lockin Smart
In-app purchases
LNDU
No in-app purchases
Lockin Smart
No in-app purchases
