I have used this app for 6 years and now because of the update is all gone. I don’t know when my next period is. Teaches me a good lesson to not depend on an app for such important information. This could have happened to anyone and now all my data is lost. Note to self it is easier to log it in your calendar. You never lose it and it is always there and you never have to worry about someone deleting your information. If you are using this app to just record periods I would not waste your time putting it in two places.