Help/Support Modifying functionality of an APP

[xoxoqtpai 6.4k iPhone 6s Plus 11.0b4]

Hi there,

I would like to add & modify functionality of an IOS app.

 

This includes:

• Adding buttons
• Hooking to an existing WEBSOCKET connection to eavesdrop and possibly intercept & modify what's being sent out.
• Modifying layout and so on a bit.

Now, I had my eyes on Objection and Frida using Windows. Since, I do not own an apple device and my phone isn't jailbroken.

 

Any hints ?

 

I'm very proficient in lots of languages. Rust is my main language that I am very confident in. So, writing code in another shouldn't be the issue.

 

My question more is:

 

Best way of doing this?

 

Any tips and tricks ?