Every RSVP website vendor promises “easy.” The differentiators are measurable: time-to-first-paint on 4G, screen-reader labels, logical form order, and honest preview of what guests see after submit.
Your evaluation should include how the flow appears when opened from wedding digital invitations on iOS Mail, Gmail, and WhatsApp—those clients behave differently.
Cost traps
Some platforms advertise free online RSVP for weddings but charge for exports or SMS reminders. Model your total cost across the planning horizon, not just launch month.
