Cards, Social and Review.
The tap already points at your TAPSYNC. Edit the profile or the destination. Next tap opens the new thing. No new chip. No new print.
Straight answer
How do I change details on an NFC card?
Log in at tapsync.in. Change the number, the handle or the listing. About a minute. The chip stays — it stores TAPSYNC, not Instagram. You do not reprint the card.
Smart Wi-Fi is different, on purpose.
A webpage cannot rewrite a Wi-Fi chip over the air. Scan the QR on the back of the card — or the same login — and we queue a re-encode of the face. Guests keep the old join until that happens. How both sides work.
Why this is the product.
Paper dies when the number changes. A visiting-card NFC that locks the chip to Instagram dies when you switch to YouTube. TAPSYNC is the layer in the middle.
A question we missed — hello@tapsync.in.