It looks like you have iOS Safari debugging turned on. Here’s the instructions I found from Apple to toggle it:

1. Open the Settings app.
2. Go to Safari.
3. Scroll down to Advanced.
4. Disable the Web Inspector toggle.

I found this info on this Apple developer documentation page: https://developer.apple.com/documentation/safari-developer-tools/inspecting-ios

To be fair Apple also does this with the iPhone. The Pro is just the Premium one really, nothing really professional about it.

Apple doesn’t review it that thoroughly. They could easily send people’s credentials up to some server and Apple would likely not catch it.

What I mean is don’t just trust it because it’s in the App Store.

I personally use it because it has an active GitHub and is one of the more popular mobile clients. Also I don’t really care if my accounts get hacked in the first place lol so I’m also trying out Mlem beta and Wefwef. But even with that said I wouldn’t just try out any random new client that came along.

Also if it’s a desktop app they could just put the malicious code in the binary download 99% of people will use, or if it’s a web app, they just put it in their hosted version, etc.