I just launched Speccyfox on Product Hunt today.
Quick background: I kept finding out too late when a competitor changed a price or launched a promo, and by then the sale was already gone. Checking pages by hand did not scale, so I built Speccyfox. You paste a competitor page, pick how often to check it, and get an email the moment a price or promo changes, with a clear before and after. It is EU hosted and GDPR ready, no code, no extension, about a minute to set up.
I would love honest feedback from this community, especially on onboarding and use cases I might be missing. What competitor pages would you want to watch? speccyfox.com