In various places on the webpage, it brags about the design, and how you can do things with "only a few taps". That'd be great, but the first screenshot shows how I have to "Speak to FitnessAI". Do I really have to have an ELIZA-style chat, and spell out the muscle groups I want to work out today? This just looks lazy. A pseudo-English command line is a terrible design for this.

You have the official "Download on the App Store" badge, but it links to a web form that requests my phone number. That's not an acceptable use of Apple's badge, according to their rules on the webpage you downloaded it from.

Using algorithms to optimize my workouts sounds like a good idea in principle, but I see no proof that it works as advertised, and everything else about this app is mildly distasteful.