QwatchView is a free Android app developed by I-O DATA DEVICE INC. that allows you to monitor your network cameras straight from your smartphone. With this app, you can easily register cameras and watch live streaming video. You can also monitor up to four cameras simultaneously.

The app also offers additional features like two-way communication, which allows you to speak through the camera's speaker and hear the response on your phone. You can also save images to your smartphone or record them on an SD card or NAS. In addition, the app provides push notifications to alert you to any changes or movements detected by the camera.

QwatchView also includes a "Home Network Checker" function that lets you check if your home network environment is compatible with the Qwatch series before purchasing it.

Please note that this app cannot be used alone and requires the Qwatch series network camera. For more information about the app's features and compatible devices, please visit the I-O DATA DEVICE INC. website.