Period tracking apps: How accurate are they for cycle predictions?

Period tracking apps provide cycle predictions based on past data, but these are not medical assessments and may be inaccurate for women with conditions like PCOS, diabetes, or thyroid disorders. Experts warn against relying on them for contraception or pregnancy planning. The apps can be useful for maintaining records and monitoring symptoms such as cramps and PMS, but ovulation varies month to month, making predictions unreliable. Gynecologists advise consulting a doctor for pregnancy planning and natural contraception methods, as apps cannot interpret the full health story behind a cycle. Dr. Deepali Nirawane of Ankura Hospital recommends using apps as a diary, not a doctor, noting they are valuable for sharing records during gynecologist visits. The apps are less accurate during perimenopause, breastfeeding, and stress.