A link won’t open
For a Nodbase link to open in the app, Nodbase must be installed on the iPhone and you must be signed in.
Check first
- Is Nodbase installed on this iPhone, and are you signed in?
- Are you opening the link on your iPhone? Nodbase is only available for iPhone.
Nodbase isn’t installed yet
Then a page on nodbase.app opens in the browser. Get Nodbase, create your account and tap the link again. Just scan a QR code again.
The link is no longer valid
Links don’t last forever. Depending on the kind, a link ends like this:
- One-time link: valid for one person. After that it no longer opens. If nobody uses it, it ends after 30 days.
- Link for several: valid for up to 30 people and 14 days.
- Withdrawn: if the person has withdrawn their link, nobody can open it anymore.
- Community link: a community’s code changes regularly, so an old link won’t last forever. If an admin renews the code, all old links stop working immediately.
Ask the person for a new link. If you’re together, it’s quicker with Hold Together or the QR code.
It’s your own card
If you open your own link, the app shows that it’s your own card. You can’t connect with yourself.
Last checked: 11 November 2026
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- Share a link: one-time link, link for several, bio linkSend your card as a link. Depending on the kind, it connects you directly or sends you a request.
- Join a communityJoin with an 8-character code, a link or an invitation, and choose which profile the others see.
- Share your card with a QR code and scan QR codesShow your QR code, or scan someone else’s code with the camera in Nodbase.
- Exchange cards with Hold TogetherHold your iPhones together and your cards go directly from device to device. This counts as a real meeting.