Crashlytics got acquired for > $100M. It wouldn't be unthinkable for Buglife to reach a similar valuation if they execute well.
My original comment was in regards to the well known fact that YC tends to invest in companies that have the opportunity to be billion dollar companies. In fact, it's a known question during interviews[1].
So, my question is what do these founders say when asked this question? What possible paths are there to a billion dollars for this type of company?