Although the app hasnt been correct for me very much it is still a great way to keep track of my cycle. And just FYI the app bases how many days you have left in your cycle based on the average amount. And if yours is like me its never the same time each month but that doesnt mean the app is incorrect it doesnt know how your body works it is just based on the average days amount. And i kinda wish it would let you say when its over but i think its a great app!