Yes the table editor doesn't work well from mobile devices so we're restricting to larger screen sizes at the moment - we're working on adding mobile support as soon as possible. Thanks for the feedback
You could show at least some screenshots/marketing materials/videos/pricing etc in this case. I usually quickly check on my phone and this is one of them where, if not for the comments, I would never check again (the world is mobile first...). But maybe not for this tool which is perfectly fine, however this message is just 'go away you small screen user!'.