Home Network Checker is a free Android application developed by I-O DATA DEVICE INC. It diagnoses your home network environment to ensure that products with remote access capabilities can be used without any issues. Remote access refers to the ability to access your LAN disk or network camera Qwatch from outside your home.

The app's key feature is its automatic diagnosis of the compatibility of products with remote access capabilities. With just a tap on the "Start Diagnosis" button, the app will diagnose whether your home network environment is compatible with remote access from outside your home. Based on the diagnosis, the app will recommend remote access products that are compatible with your network, allowing you to check their compatibility before purchasing. It is important to note that the app does not use any personal information for any purpose other than diagnosis.

The app is specifically designed to diagnose the compatibility of I-O DATA DEVICE INC.'s remote access products in your home network environment, making it an essential tool for those who use these products.