Knocksser
Knocksser is made and published by TUSSER SYSTEMS SOCIEDAD LIMITADA. AppBrain is an independent app data site and isn't affiliated with TUSSER SYSTEMS SOCIEDAD LIMITADA. The app name, icon, screenshots and description belong to TUSSER SYSTEMS SOCIEDAD LIMITADA. and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- May 27, 2026
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Releases
Updates seen on the App Store- Version
- 1.0
- Launched
- May 2026
No changelog data
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Technology
Found in the app by AppBrain- Price
- Free
- App size
- 28.8 MB
- Content rating
- Everyone
Technologies used by Knocksser
About the app and developer
About Knocksser
Knocksser is a productivity app developed by TUSSER SYSTEMS SOCIEDAD LIMITADA.
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The app has no ratings yet.
App Information
Knocksser is freely available from the App Store. The app size is 28.76 MB. The latest version available is 1.0. The last update was on May 27, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since May 2026.
Developer information for TUSSER SYSTEMS SOCIEDAD LIMITADA.
TUSSER SYSTEMS SOCIEDAD LIMITADA.
Address:
Store listing
By TUSSER SYSTEMS SOCIEDAD LIMITADA., from the App Store
Description by TUSSER SYSTEMS SOCIEDAD LIMITADA. Written by the developer, not by AppBrain. Click to read.
Stick your personal QR on the door. When someone scans it and taps "Call", your phone rings with a real call — dedicated ringtone, full screen. You'll know it apart from any other notification.
No drilling. No wires. No app for the visitor.
HOW IT WORKS
1. Create your QR.
2. Stick it on your door (print on paper or sticker).
3. When someone presses it, your phone rings. Done.
GREAT FOR
· You live on a high floor and don't hear the doorbell.
· Your doorbell has been broken for years.
· You wear headphones while working or gaming at home.
· You run a shop with a back office or several rooms.
· You're older and have trouble hearing the door.
· You manage an Airbnb without front desk.
· Your office gets visitors but no doorperson.
· Your warehouse has several floors and no one at the entrance.
· You're a building concierge and don't want to publish your personal phone number.
BUILT FOR REAL USE
· Distinctive ringtone: you hear it apart from any other alert.
· Only rings from the door: the app verifies the visitor is physically standing in front of your QR, within a radius you choose. No prank calls from across town.
· Quiet hours: define when you don't want it to ring (night, meetings, etc.).
· Multiple phones: the alert reaches every device connected to your account.
· Multiple QRs per account: one for home, one for the shop, one for the office.
· Team mode: invite your partner, family or team. Everyone gets the call, anyone can answer.
· History: see when they called, from where, and whether you picked up.
PRIVACY
Visitors only see a button to call you. They don't see your phone number, your email, or who you are. We don't publish your location. We don't sell your data.
KNOCKSSER IS NOT
· A phone. There is no two-way voice call.
· A video intercom. No video or audio from the visitor.
· A smart lock. It doesn't open the door.
It's a real alert when someone is at your door. Nothing more, nothing less.
CONTACT
Missing something or got an idea? Write to support@knocksser.app. Knocksser is in active development and grows with its community.