This app allows to wake up computers and other devices that support the WOL (Wake On LAN) standard. Most modern computers do support this, however, you may need to enable Wake-On-LAN in BIOS and sometimes in network card driver preferences. Although the app itself is very easy to use some networking knowledge may be required to set up your devices, especially if you are walking up over the Internet. To wake up a computer on your local network, all you need to provide is your device's MAC addres