I really wish this sort of thing had been available to me back when these things were... predictable. Care to create a variant for the peri-menopause?

Actually, I never needed anything like this. I know exactly when I ovulate from a range of physical and emotional factors. If you would find it helpful to refine the tool by allowing women to enter those elements (and make the app 'learn' a woman's particular cycle rather than just take the averages) let me know. Probably better done over PM though - would ick out most of the readers here. Or scare them.

Great idea though. I believe it was suggested way back when before n900 was launched. I'm a little alarmed at the idea of a gentleman keeping a selection of women's cycles in his phone. Not sure I want to be around anyone like that!