Monthly Rose 推出無帳戶、廣告或分析 SDK 的經期追蹤器，並指出相關取捨

Monthly Rose went live on 7 October. No account system, no ad or analytics SDKs, no shop inside it. All the logging works offline, and if you turn on Apple Health it syncs both ways.

That sounds like a clean win. It isn't free. No accounts means no cross-device push campaign, no "you logged late this month" nudge, no funnel to stare at when the numbers dip. If someone's notifications go quiet, I find out when they email me — or don't.

What's left is the unglamorous stuff. Cycle predictions are a most-likely day plus a range instead of one confident date, because irregular cycles exist and pretending otherwise is how you get people to distrust the whole app. Reminders say which rule fired, so turning one off is a decision instead of a shrug. And at the end of each cycle there's a one-page summary, mostly because the alternative was screenshotting five screens in a doctor's waiting room.

Rosie is an AI companion inside the app for the days that are rough. It's not a medical service and it doesn't diagnose anything.

Free 7-day trial, then $5.99/month. Plus is optional.

iOS: https://apps.apple.com/us/app/monthly-rose-period-tracker/id6816627178
Android: https://play.google.com/store/apps/details?id=cn.iyunci.yueji.gp