Off topic, but I have to ask - what do you use the app for? In my head LinkedIn is a 'work' thing so I only use it on my laptop.
They are the worst... every few months, I will end up with like 20 emails at once asking to connect with a coworker on LinkedIn. They will be to 20 different email lists that I am on, which all get sucked up by LinkedIn and spammed. I don’t even have a LinkedIn account.
The worst is, even if you deny Linkedin access to your contacts.
Your contacts will still show up in suggestions, because others have givein LinkedIn access to their contacts.
And LinkedIn maps it with your Linkedin signup email address.
Saying that the app asks is not accurate. It's not presented as a choice and it's not clear what will happen when you continue.