The cycle timer gets stuck to the last day you look at it. So if you looked at it 5 days ago, it will keep telling showing you you're 10 days away from your period. Then check your Lady Timer 5 days later, it will say you're 10 days away from your period. It will only give you accurate information on the cycle timer page if you refresh the screen. On top of that the app is pretty hard to navigate.
Ladytimer Ovulation Calendar at Google Play market analyse
