Mariage Audio is a digital audio guestbook service designed to help couples preserve the voices and memories of their wedding guests. Instead of writing in a traditional book or using a rented phone, guests scan a QR code with their own smartphone, enter their name and record a voice message directly in a browser, with no app download or guest account required. They can also attach a photo to their message when the couple enables the photo option.

Couples create a personalized recording page with their names, wedding date, photo and choice of design. The QR code is available immediately to share or print, and the setup can be tested for free, including up to 10 audio messages. The paid activation costs €29.99 as a one-time payment and includes unlimited messages, downloads and access for one year after the wedding. An optional photo feature costs an additional €10. Messages and photos are collected in a private space where couples can listen again and download their keepsakes.