2 different ovulation dates

Anyone else have two or more different apps that predict ovulation on different days? This month me and DH Decided not to use opk or temping just because the stress factor it’s been putting on us. we’ve been trying to conceive for 8months! I figure if we cover all fertile days on both apps and IF I ovulated this month we have a awesome chance! I’m sure hoping this works because I’m tiredddddd😂🤞🏾🤞🏾Just curious if anyone’s in the same boat? Lol sending tons of baby dust🤩💫👣