Fertility tracking apps to prevent pregnancy

Has anybody on here used any kind of fertility tracking app like Daysy solely to prevent pregnancy? I’ve always hated using birth control and putting the extra hormones in my body and have always wanted a more natural way to prevent pregnancy aside from always using and relying on condoms. I want to eventually use fertility awareness as birth control but I just want to see what others experiences are with it! I really don’t want to get pregnant until I’m at the very least 25, which is 3 years from now. Thanks in advance!