Hypo Shield
Hypo Shield watches your nighttime glucose and, once it's learned your nights, suggests a long-acting dose change if yours looks set too high or too low. It never changes anything until you confirm.
Over your first 7 Luna sessions, Luna learns your overnight patterns and doses conservatively. The sessions don't need to be consecutive.
When your long-acting dose looks mis-set, Hypo Shield suggests a change and explains why. Nothing happens until you confirm.
You take the new dose yourself; if you allow it, Luna updates your long-acting insulin setting in the app. You can turn Hypo Shield off any time using the switch above.