Privacy
The website
If you leave your email to hear when the app is out, we keep the address and the language of the page, only to write to you when Cardillon is on the App Store. The list is stored with Resend (Resend, Inc., United States), which sends our emails under the European Commission’s standard contractual clauses.
You can unsubscribe from any email, or write to info@bytelegion.site to have your address deleted. We don’t sell or share it.
This site uses no cookies and no analytics.
The cards
The recipient’s name, the message and the signature travel inside the card’s link. We don’t store them: to open the card, the page reads them from the link on the device that opens it. Like any website, our host (Vercel) may log requested addresses for a few days for technical reasons.
Anyone with the link can open the card: send it only to the person it’s for.
The app
Cardillon has no account and no analytics. Cards are bought through the App Store: Apple handles the payment and we receive no personal data. The number of cards you have left is stored on your device and in your own iCloud, which we can’t access.
Who we are
Cardillon is made by Valerio Donfrancesco (Bytelegion), Italy. Contact: info@bytelegion.site.
Last updated: 25 October 2026.