See any nails on your own hands, live. Pick a shade, or upload a photo of a set you like.
Your camera stays on your phone — that view is never sent anywhere.
Upload any photo with nails in it — a hand wearing them, a few loose press-ons, whatever you've got. You pick out each nail yourself, so it works no matter how the photo looks. If you crop nails out by hand, that photo and your crops are kept to help improve nail detection.
Drag the dots to trace the nail, then tap the finger it goes on.
Hold your hand in frame while you slide. Your settings are remembered.