Does the app work in airplane mode? June 07, 2023 16:30 Updated Follow As long as you have access to Wi-Fi, your app will work in airplane mode. Related articles Can I log data for previous days I missed? (e.g. period, symptoms, ovulation, etc.) If my cycle length changes each month, will the app still be able to predict my next cycle? Can I sync my data with Apple Health? Can I sync my data with Apple Health? Can I use the same account and login information for the website and app?