All these Apps!

Rachel • Have a beautiful and spunky 4 year old Tucker and expecting his little sis April 23rd 2018!
So TTC #2! I have three apps tracking my "fertile week". All different! Same info! It's a no brainer to try every other day from the stop of ur AF until u start AF again. So u don't miss a beat but I want to know the optimal time! If I didn't concieve this cycle I'm going with the opk. But who thinks what App was the most spot on?!?