Is Glow accurate about your period start date?

Question

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Answer

Glow used to be a good 3 days off for me consistently, sometimes early, sometimes late. Recently, it deleted all my data though so it's been completely inaccurate :(

Answer

Glow is late on mine but only about a day.

Answer

I've only had this app since the end of last year but it has been right every time except for one cycle when it was out by a day.

Is Glow accurate about your period start date?

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