The best by far!

I like it so far, Ive only had it for a few days. All along Ive been charting on paper. This is way better. Its great that my husband can have it on his phone and know my fertility too. One draw back Ive noticed so far is about the cervical position. The method Ive been using all along has more fertility symptoms concerning the cervix. Not only is there level, opening and firmness, but also the position (like straight or tilted). But to make up for this Ive added an optional menu. Another downside is that there are so many cervical fluid sensation and appearance options. I wish that these were customizable. I think it would be good to keep whats there for women who are new to NFP, but for those of us who have been charting for a while it would be nice to use our usual descriptions. All that being said, this NFP app is by far the best. I was reluctant at first to purchase it, but after looking into the others I found that Lily while it had a few drawbacks (the two I mentioned all all Ive found), had way more to offer than the others.

NFPer123 about Lily - Fertility Calculator, v1.0.6