4.6
82 reviews
5K+
Downloads
Content rating
Everyone
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About this app

Turn a spare Android device into a smart motion sensor and security camera.
Yakk is a lightweight companion app designed for wall-mounted or stationary devices used in home automation setups.

Perfect for tablets or phones running alongside apps like Home Assistant, Yakk adds motion detection, device wake-up, and MJPEG streaming — all while staying out of the way.

Why Yakk?

♻️ Reuse old Android devices as motion sensors or security cameras
🔋 Low power operation with automatic wake-on-motion
🏠 Built for home automation (works great with Home Assistant)
⚙️ Runs quietly in the background without interfering with your main app

Key Features

📷 Motion Detection & Wake-on-Motion
Let the screen turn off to save power. Yakk monitors motion and wakes the device instantly when activity is detected — ideal for kiosk-style or wall-mounted setups.

🚀 Auto Start on Boot
Automatically launch Yakk (and optionally your companion app) after a device reboot. Perfect for unattended or always-on installations.

🌐 MJPEG Camera Streaming
Turn your device into an MJPEG-compatible security camera.
Access the stream at: http://:2112 and integrate it easily with platforms like Home Assistant.


Designed to Work Alongside Your Existing Setup

Yakk doesn’t replace your dashboard or UI.
It complements your existing apps by handling motion detection, power management, and streaming — leaving visualization to tools that already do it best.


Important Notes

Motion-based wake requires an unsecured lock screen (no PIN, pattern, or password)
Some devices may need additional system-level configuration for best results
Please review the documentation and FAQ on our website for setup tips


Who is Yakk for?
- Home Assistant users
- Wall-mounted dashboard setups
- Kiosk-style Android devices
- Anyone with spare Android hardware they want to repurpose


Yakk stands for Yet Another Kiosk Companion — a simple name for a focused tool that does one thing well.
Updated on
Dec 21, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App activity and App info and performance
This app may collect these data types
App activity and App info and performance
Data is encrypted in transit
Data can’t be deleted

What’s new

New features:
* Add Webview Kiosk and View Assist Companion App to list of supported companion apps

Improvements:
* Reduce Yakk background service startup/shutdown overhead

Bug Fixes:
* Fix Preview screen not loading on some devices
* Fix ANR when changing camera settings if MJPEG stream is enabled

App support

About the developer
Balint Kurnasz
info@bkappz.com
1124 Applerock Leander, TX 78641-2401 United States