With the default iCalendar format, the iPhone Camera app offers to add the event to Calendar. On Android it depends on the camera app; Google Lens and most scanner apps can add it. The person checks the details before saving.

If you pick Google, Outlook, Office 365 or Yahoo instead, the code is a link that opens that calendar’s “add event” page in the browser.

• A save-the-date on an invitation.
• A class, workshop or club night on a poster.
• A shop opening or sale.

• Print the date and place in text too, because people decide whether to scan from what they can read.
• Keep the description short so the code stays easy to scan.

• Check the start and end times against your invitation. Swapped am and pm is the usual mistake.
• Pick a time zone if guests may be elsewhere. Floating time shows the same clock time wherever the code is scanned.
• Put the full address in the location field so the calendar can show it on a map.

The event details are put into the code in your browser. QRCraftly receives nothing and keeps no guest list. Anyone who scans can read the details.