Never miss another birthday.

Sincerio remembers the dates, writes the words, and sends a beautiful card on your behalf — right on time.

Every card is digital: it arrives by email, or you send the card's own private link yourself — WhatsApp, Messages, wherever you already talk. Nothing is posted and no address is needed.

$2 to send a single card, no account needed. $6 a month for autopilot — 10 cards included, every birthday and anniversary remembered automatically.

How it works

Add your people — names and dates, once.
Sincerio writes a personal card in your tone and shows you a preview 3 days before it sends.
It lands in their inbox on the day, from you.

390 card designs across every occasion — birthdays, anniversaries, weddings, graduations, holidays, and an apology when you need one.