FOTA or FOTA lite is a desktop application, that can be used on a PC to update devices in a similar way like FOTAWEB. FOTA lite needs to be installed and configured so there is a little more preparation work to do before using it.
FOTA WEB is a WEB application that does not require any installation and configuration and is much easier to use and supports all of our newest devices.
Our devices are configured by default to connect to FOTAWEB every 720 minutes, if there are any updates assigned they start updating automatically.
If you have any specific questions about FOTA or FOTA WEB please ask.