Isn't a similar thing possible through ELK stack for those who are already maintaining one, the logs should be sent to Elastic Search for indexing. It might not be as customisable as this product.
Definitely possible but as is the case with most Saas products, It's much easier and convenient to just pay someone $10 a month to do it for you rather than hosting an entire ELK stack somewhere (And having to upskill to get it all working efficiently).
