curious!!

How accurate is this <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> ? I'm planning on trying to have a baby starting this year. this seems like a great app to use. I was wondering of any advice on this <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a>. 🤷‍♀️