Use on iPhone?

I bought this on my mac with the intent of using it on my iPhone. It does not look like I can use it on either my iPad or iPhone because it does not show up on purchased apps on those devices. This looks like a good record keeping program and I was drawn to it because I could keep multiple journals (ie, one for each family member) -- but it is of no use to me if I cant use it on my phone. Disappointed, but technology-challenged so I assume the fact it cant be used on a phone is clear on the purchase page, but it was not clear to me.

Rightwinger31 about Blood Pressure Diary