Dislike.

The only reason I give two is because it seems like it could be accurate. It does not store data so what is the point of using this? I will forget the day I put in and forget when I had my last period so it would be better to just write it down. Its such a simple app and its sad that it cant maintain the date you put in it. Deleting now.

MamaCatastrophe about Safe Sex Calculator, v2.0