Bookmarks
Keep other people's cards on file.
The exchange moves your details outward; bookmarks are the traffic coming the other way. When someone shows you their eKard — at a stall, across a desk — you can keep the card itself, live and current, instead of a screenshot of it.
Save a card
Every public card has a bookmark icon at the top right of the card — its tooltip reads "Bookmark this kard". Signed in, one tap saves it and the outline fills in solid. Signed out, the tap sends you through Google sign-in and the bookmark is added on your way back — finish within five minutes, or it's forgotten and you tap again.
Your shelf
"Bookmarks" in the sidebar opens everything you've kept — "Kards you saved", with the count. Each tile shows the photo or initials, the name and the tagline; tap one and the public card opens in a new tab, as current as its owner last left it. Order the shelf two ways: "Default", latest saved first, or "A-Z", grouped by first letter with numbers filed under "#". An empty shelf tells you what to do — open any Kard someone shares with you and tap its bookmark button.
Let one go
Tap the bookmark on a tile — or on the card itself — and confirm when it asks "Are you sure you want to remove this bookmark?". That's the whole feature: the cards you collect at an event, the vendor you'll call next month, kept where you'll find them.