Hey, so right now while it's under development, it's free. Quite frankly, I'm not too familiar with pricing for monitoring tools, so I'd love any suggestions here.
Sorry I'm not much help here, I wouldn't know how to price it either. I'll keep it bookmarked though, in case you offer pricing that is accessible to indie devs. I'm not a big corp, but I'd love to have this kind of monitoring in my toy web projects and wouldn't mind paying for it if it is reasonably priced. Best of luck.