Yes Fulgaz is an app in it’s own right, it’s more solo rides thought they do events everynow and then with a leaderboard. The rides are video’s of real rides from around the world, new rides every Tuesday and plenty of hills and mountains :)
I’ve used it for 18 months now, I joined Zwift in May for a bit lockdown variety, I’ll run both apps for now as I like bits from both for now, if I have to cut costs I’d drop Zwift, do like the group aspect, adds a different dimension to virtual riding.
My legs are battered but I am still planning to be on tonight’s ride :)