Could have been a great product …
… but instead it’s junk. The developer is completely software incompetent and had decided to use a proprietary framebuffer streaming protocol rather than something standard like VNC. Result is that none of the many clients they need to maintain work in entirely different ways. This iOS client is probably the worst of the bunch. And now with April 23, 2024 update, it doesn’t even try any more, just crashes after 500ms of starting the app.