Ovulation days on eve

For women trying to conceive, if you’ve used the apps ovulation days, has that worked for you? I have a 5 year old and not getting pregnant as easy this time around. I am 28 and I do have a fibroid. But my gyno said that that should not interfere with me being able to conceive. Anyway, I’m just wondering if anyone was able to conceive based on the ovulation days here.