The first 50 members join at the founding member rate: €62/month or €620/year, instead of €89/month or €890/year.
The rate is locked for life. As long as your subscription stays active, your price never changes, whatever new members pay later.
There's no code to enter. If the founding member offer is live when you sign up, the rate applies automatically.
Everything else is the same: full product, up to 5 seats, 14-day free trial.