“I downloaded several apps for NFP and this has been the best (and it’s free!). I almost paid for a subscription to natural cycles and am glad I waited to test them both out at the same time. I put all the same information in both apps and lady cycle accurately determined when my period would start and was only a day off estimating an ovulation date. I’ve researched how symptothermal methods work and I could see the program utilizing the same methods, including advising to abstain from sex the three days after your temperature spikes. I’m only about two months in, but very pleased as someone with regular cycles trying to use NFP to avoid pregnancy.”