Been using this app for 6 years, and it is very accurate for me! However I am not completely regular, like it said I was suposed to have ovulation yesterday, and that’s often true; but today I feel the horrible ovulation cramp one day later. It would be a nice option to add to click if you feel that you’re having one. Sometimes the ovulation cramp is on the same day as it says, but Sometimes it’s a day before or after. Still really close, but yeah would like to choose that option with another color flower or something lol