Smart Doorbell D02

Smart Doorbell D02

By Shenzhen Lenkeng Technology Co.

Smart Doorbell D02 is a companion app for remote visitor monitoring and group-based hardware management on iOS.

The App DNA

What makes this app unique?

The app removes the need for physical presence at the door by providing remote audio and video access to visitors.

For Homeowners and residents using the Smart Doorbell D02 hardware for visitor monitoring.

What does it look like?

Key features

Live Video/Audio Intercomstandard

Real-time communication between the app and the doorbell hardware, driving initial hardware purchase.

Visitor Recordsstandard

Log of past interactions, providing a retention mechanism for missed calls.

Group Sharingedge

QR code-based invitation system to add family members, acting as an acquisition lever.

How much does it cost?

freeFree app with no listed subscription or in-app purchase tiers

The app operates as a free companion tool for hardware, with no visible monetization surface.

Velocity

Dormant developmentopaqueShow more...

The app has seen no development activity for 2,851 days, indicating it is no longer supported. With only a single minor release in its recorded history, there is no evidence of ongoing maintenance or feature development. The project appears to be abandoned by its publisher.

See all version history

Who built it?

Shenzhen Lenkeng Technology Co.

4 apps tracked · Lifestyle

Matrix controllerMatrix controllerSmart Doorbell D01Smart Doorbell D01Polaroid Wi-Fi Photo FramePolaroid Wi-Fi Photo Frame
Explore the full publisher profile

User Sentiment

What do users think recently?

Review voice lately leans upset.

How are ratings & reviews evolving?

App Store
2.00 · 2

What users say, by theme

What Frustrates Users
  • Users report the app and associated hardware fail to function, leading to allegations of a scam

1 of 1 recent reviews analyzed · limited sample

Read the full review analysis

Competition

Competitive landscape for Smart Doorbell D02

How's the Lifestyle market?

Smart Doorbell D02 is a legacy utility with no active market presence, underscored by a 2.0-star rating and a total lack of updates for over 2,800 days.

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The rivals identified

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The Analyst's Read

Key takeaways for Smart Doorbell D02

Where is it heading?

The market for smart home utilities has consolidated around hardware-agnostic platforms, leaving single-device apps like Smart Doorbell D02 obsolete. With no updates in over seven years, the app is effectively a zombie product that poses a significant risk to the developer's reputation.

  • The seven-year development hiatus confirms the product is in terminal maintenance mode, signaling a total lack of future support.
  • User reports of broken support links and non-functional hardware suggest the service has ceased to operate as advertised.

The SWOT

Core Strengths
  • QR-based group sharing lowers household adoption friction
Critical Frictions 2 weaknesses insideMarket Threats 1 threat identified

Next best moves

1 Sunset

Sunset the product because the hardware and app are non-functional → minimize brand damage

The counter-intuitive read

The product's failure is not a technical issue but a business-model collapse…

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Bottom line

Smart Doorbell D02 is a defunct product that no longer serves its core purpose, and the PM should treat this as a sunset scenario. The lack of functional support and seven-year silence confirms the service is effectively offline for new users.

Unlock 2 critical frictions, 1 market threat and the analyst’s take.

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FAQ

Is Smart Doorbell D02 still supported?
No, the app has not received any feature updates or stability improvements since 2018, and users report that the associated hardware and support links are non-functional.
Does Smart Doorbell D02 work with modern smartphones?
Users report that the app fails to function as advertised, and given the lack of updates for over seven years, it is likely incompatible with current mobile operating systems.
What are some alternatives to Smart Doorbell D02?
Users seeking reliable visitor monitoring should look for established smart home platforms that offer active firmware support, regular app updates, and verified customer service channels.

Sources

  1. [1] App Store

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Smart Doorbell D02, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Smart Doorbell D02 Intelligence Report.” Updated Sep 18, 2026. https://marlvel.ai/apps/smart-doorbell-d02

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