Netool.io is a free iPhone app developed by Netool LLC, designed to work with the Netool network analyzer. This app is exclusively compatible with the Netool network analyzer. With Netool.io, users can detect various ethernet protocols and analyze them efficiently. The app can identify Tagged VLAN IDs, Untagged VLAN IDs via CDP or LLDP, Spanning Tree (STP), DHCP, Switch Port, Switch Address, Switch Hostname, LLDP-MED POE Power, and conduct ping tests to the internet, gateway, and custom addresses. Additionally, the app supports Dark mode and allows for easy sharing of test results via text, email, Slack, and other platforms. Users can also upload tests to the Netool remote cloud for sharing with other Netool users. Netool.io receives regular updates with new features through its Over the Air update system.