Frasiah, I tried one of the free services, and then when the version changed, I lost all the data I'd been saving. [:(]
I was really happy when I bought the downloaded verson of the ovusoft fertility software (affiliated with the Taking Charge of your Fertility book) because it was a program I could use on the computer without having to be online. I've had it since July of 2000 and I'm on my 31st cycle. I use it even when I'm not TTC, because it's such a great way to keep track of my history. Hope you find what works best for you!!
Administrator/AK Area Coordinator
Alicia (severe PE) 5/98 ~ Camille (htn, oligo) 4/03