How accurate is Glow with AF prediction?

Question

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Is glow super accurate with predicting when your period should start?

Answer

They’re usually pretty close if I know when I ovulated. Although I’ve never been 100% sure of  when I ovulated. My cycle ranges from 23 to 27 days so if I don’t input opk info they just predict a 25 day cycle. Anyway, my point is the accuracy depends on how much info you input.

Answer

Mine is almost always spot on. Once it was a week off because I ovulated late but 99% of the time I'll start on the day or the day after it predicts.