The Roku app connects your smartphone to your Roku device via Wi-Fi. Once connected, your phone functions as a remote, allowing you to navigate channels, adjust volume, and control playback. It removes the need for a physical remote and offers convenience if the original remote is misplaced or forgotten.

The app is compatible with most Roku devices, including Roku TVs and streaming sticks. Compatibility requires that the Roku device has a working Wi-Fi connection and is on the same network as the smartphone. Checking the app description for model restrictions is recommended.

Setup is simple: after downloading the app, ensure both your smartphone and Roku are on the same Wi-Fi network. Launch the app, which will detect your Roku device automatically. Follow the on-screen instructions to complete setup without needing additional hardware or complex configurations.

The app is generally free to download and provides basic remote functions. Advanced features or an ad-free experience might require in-app purchases or subscriptions. Reviewing the app's pricing details in the store is advisable if cost is a concern.

Key features include channel navigation, volume control, and playback management. Many versions also offer a keyboard for text input, voice control for hands-free operation, and the ability to stream media directly from the phone to the TV, enhancing overall usability.