How accurate are these apps?

Question

I have 3 fertility apps and they all say I ovulated on the 16th. How accurate are they?

Answer

But opk aren’t 100% accurate either right? What’s the best way to know?

Answer

I ovulate early so the apps are usually off but after filling in data from my AM temp, ovulation tests and CM it began to correct itself. I think that was Ovia. Glow doesn't do it.

Answer

They’re only as accurate as the information you give it

Answer

Not overly accurate. They give an average.

Answer

They only tell you when the average woman on your cycle length would ovulate. So obviously it’s not going to be right for everyone. I didn’t test ovulation but got pregnant by looking at when the app told me I was fertile

Answer

I have 3 apps and they where all off by 3-2 days

How accurate are these apps?

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