月事LunaCue：經期提醒

Log the start and end of your period — two dates, nothing else. LunaCue works out when the next one is due, reminds you on the day, and can send that same reminder to your person. LOGGING Tap a day on the calendar to mark it; tap again to undo. Past days are fine. After two complete records, cycle length becomes the median of your last six intervals. REMINDERS FOR YOU Four local notifications: estimated first day, estimated last day, three days past the estimate, and the start of the estimated fertile window. 8:00 by default, each with its own switch. The fertile window stays off until you turn it on; it is worked out from dates alone and is not a method of contraception. REMINDERS FOR THEM Pick a message or write your own, generate a link, send it through any messaging app. They can add it to Google Calendar or the iPhone calendar, and it goes off on the day. The link carries only the…