Studio
Everything you need is right here on this page. A small Skini program runs in the background on your computer and changes the design on your iPhone through the cable, with no complicated setup.
Connected ✓
The helper app isn't running. Download and launch it once, and this page will detect it on its own.
Connect your iPhone with the cable and tap "Trust This Computer".
Choose a card from the list. Your cards are saved on this computer, so there's no need to detect them every time. To add a new card, click "Detect a new card", open Wallet and open the card. You can give each card a name with ✎ to tell them apart.