Looks like a great and useful app. I'll definitely buy it.
Have you seen PingDoctor? https://apps.apple.com/us/app/pingdoctor/id1350044974?mt=12
I quite often login to routers/firewalls to pull the ARP and Route Tables. If there was an option to add an API Key + REGEX + HOST/s for processing with a one-click button that'd be rad