Life & fun · alternatives · 2026

24 alternatives to Knocker

Unlock building doors with your voice – no hardware needed

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Knocker launched in 2024; newer entries below may have overtaken it.

1
Doorport▲72
Unlock your door using your smartphone
2019 · its alternatives →
2
DoorBuzzing▲86
Turn your existing door buzzer into a smart device
2015 · its alternatives →
3
Buzzcut▲9
The smart buzzer for apartments & condos
2024 · protobuzz.com · its alternatives →
4
KnockKnock!▲187
Minimal circular video calls that start with a "door" knock
Dec 2025 · apps.apple.com · its alternatives →
5
I built an app to use a QR code as my doorbell▲140
I didn’t have a doorbell before (multiple reasons) and my house feels unwelcoming without one. So I built a doorbell app that uses a QR code - visitors scan the QR code to ring the doorbell and I get notified on my phone. Here is an example of the QR code I have on my door. You can scan it and say hello: https://www.thebacklog.net/img/2024/10/show-hn.png This was also a great excuse to build my first app for Android and iPhone. I’d love to get some feedback before I spend more time polishing the app. Please try it out and feel free to ask me any questions! No…
2024 · dingdongdoorbell.com · its alternatives →
6
Knock▲168
Knock-Knock.net is a live honeypot dashboard showing real-time bot attacks by protocol, source country, ISP, username, password, and IP across SSH, Telnet, FTP, RDP, SMB, SIP, HTTP, and SMTP services.
Mar 2026 · tryknock.app · its alternatives →
7
AutoIntercom▲79
Make your ordinary apartment buzzer smarter
2021 · autointercom.com · its alternatives →
8
Knock▲35
A safer login. Knock your iPhone to unlock your Mac
2014 · knocktounlock.com · its alternatives →
9
Doorbot▲73
The Wi-Fi enabled doorbell for smartphones
2014 · its alternatives →
10
Lockitron Bolt▲174
Unlock your door with your phone for only $99
2015 · its alternatives →
11
Dialed▲148
AI pep talks: inspiration, just for you
2024 · apps.apple.com · its alternatives →
12
Nest Hello▲272
Nest's new smart doorbell with HD video monitoring
2017 · store.google.com · its alternatives →
13
Knock▲342
Notification infrastructure for developers
2022 · knock.app · its alternatives →
14
Clicko Trigger▲79
One click to unlock any door from all over the world
2014 · its alternatives →
15
August Smart Lock (3rd Generation)▲105
Control your door & give access through your smartphone.
2017 · august.com · its alternatives →
16
Knock▲71
Making your connected life better for you and your family
2016 · myknock.com · its alternatives →
17
Airbounce for Mac▲230
One magic button for easier calls
2024 · airbounce.co · its alternatives →
18
Remootio▲75
Make your gates & garage doors smart with Bluetooth & Wi-Fi
2019 · indiegogo.com · its alternatives →
19
I built a "Do not disturb" Device for my home office▲99
I created a custom hardware solution to prevent my parents from walking in on my meetings. Because a locked door is just a suggestion.
Jan 2026 · apoorv.page · its alternatives →
20
Peck▲75
Create for web, mobile and voice instantly 😎
2017 · peck.me · its alternatives →
21
DOORWING Door Lock and Finger Guard▲82
Door proofing solution to keep your kids and pets safe
2021 · kickstarter.com · its alternatives →
22
Hacker's Doorbell▲37
A one button device that emulates a keyboard and mutes audio to alert a headphone wearing user of another person's physical presence. - GitHub - joer14/hackers-doorbell: A one button device that emulates a keyboard and mutes audio to alert a headphone wearing user of another person's physical presen
2017 · github.com · its alternatives →
23
Voxer SDK Beta▲86
The talk button for your app
2021 · get.voxer.com · its alternatives →
24
Knock▲119
Between a call and a text!
2014 · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →