If I build a chart generator for use in one of my sites, hosted on that domain, with no published API whatsoever, it would be odd to see some random productivit

If I build a chart generator for use in one of my sites, hosted on that domain, with no published API whatsoever, it would be odd to see some random productivity app using that straight from peoples phones to chart their stuff. Not illegal, Apple or the developer isn’t claiming that my API is theirs. And maybe it’s open on my robots.txt and maybe my terms of service say nothing about it. But it’s weird. You just pushed an app out to a billion devices allows users to hit my chart generator directly. That’s plain weird.