Best ovulation/ fertility tracking app ever

Im using it for about 2.5 years now and it definitely is the one with the best accuracy as well as easy to use.
I tried nearly most of all the free ovulation/ menstrual cycle apps and some of the buyable ones too, but I never found one as great as this. For times I used up to 4 apps parallel, which really showed the massive differences between those apps.
Simply love it & in combination with the online platform I just can highly recommend it ;O)

crimson clyde about Fertility Friend FF App, v2.03