Vanity turns every customer into a brand ambassador. Add a QR code to your packaging or send a post-purchase email — customers upload a photo and instantly get a personalized promo code from their name. Approve submissions from your dashboard, then showcase user-generated content in a social proof gallery on your store. Each shared code tracks referral conversions so you measure real ROI. Set discount percentage, expiry, and usage limits. Installs in two minutes with no coding required.