You can ride FulGaz 100% offline IF you have downloaded the ride video beforehand. This goes for all regular FulGaz rides and training plan workouts.
You will need to be connected to the internet to download the ride video file, but once the download is complete you can then ride (either right away or later) without any internet connection.
If you ride offline, you will need to reconnect to the internet in order to upload your ride and receive the post-ride email or sync the ride to any connected sites (eg: Strava). Once connected again, simply head to your Ride History and upload the ride.
FulGaz does require an internet connection to regularly update the ride library, install important updates, validate your subscription status, and upload your ride data. It is important to use FulGaz online from time to time so that your app stays up to date.
Group rides and events: Group rides and races on FulGaz require an internet connection. Your position on the course, the relative position of other riders, and online leaderboards are all continually updated back and forth from our servers during events. A fast internet connection is highly recommended when riding any events, races, or private group rides on FulGaz.