Please see the listing for regular HubMobile for more details on the application itself.
This version of HubMobile is updated at a much faster pace than the regular version.
This means that new features and configuration options are introduced more quickly, before gradually being introduced into the regular version.
If you choose to install the "Fast updates" version, you may wish to keep the regular version installed as well.
This version receives new features as soon as they are implemented and tested, whereas the regular version only receives features after weeks of use in the field, so in the event that a new feature causes an issue, the regular version should serve as a backup.