Keeping track of flow

BK • Just shoot me.
Is there a way to keep track of whether your flow is extra light, light, regular, heavy, too heavy? 
It's super important for what's going on with me and I'm sure for some other women too. I'm frustrated that I can't seem to find a way to do that. If there is no such option, please, <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a>, make one!!!