It reads your frame, live.
Faces, horizon and shake are analysed on your iPhone several times a second. Nothing leaves the device.
Small tips, in plain words.
“Move right a little.” “Level your phone.” No jargon, no settings to learn. Only when it helps, never nagging.
Then it tells you to hold still.
A shaky hand is the most common reason a photo is soft. Ocello notices before you press.
The ring locks. You shoot.
When the framing is right, the ring tightens and turns amber, with a gentle haptic. The shot is yours.