Ratesync play online

Automatically switches your display's refresh rate to match the frame rate of what you're watching. This makes motion slightly smoother and clearer.

Only works on NVIDIA Shield TV with the Netflix app.

This project is abandoned. If you are a developer and interested in completing it, you can find the source code and technical documentation here: https://gitlab.com/sampalmer/ratesync.

Permissions
Internet: to connect to device debugger to detect video frame rates
Foreground service: to prevent Android from stopping this app while you're using it
Appear over other apps: to set the display refresh rate
Usage statistics: to see if a media app is open
Run at startup: to start this app when you restart your device