Selling an App Store app on an exchange?

Question

iOS

Hello.
Not so long ago, Apple introduced the ability to transfer your application to iTunes Connect.
A week ago, I came across an advertisement for the ios / android application exchange - Apptopia.
I have been thinking about selling my toy for a long time, but a question arose - when registering, the exchange asks you to give it access to your iTunes Connect account.
Is it safe? Has anyone already worked with this (or other) exchange/exchanges? Will this violate any clauses of the agreement with Apple? What pitfalls can arise when transferring an application through this exchange?
I searched and didn't find anything on this topic.
Thanks in advance for your reply!

Answer 1

For Android, if you do everything manually (not much more complicated than automatic), you can do it without a password, just add the developer, specifying the generated address from the atopia in the email and that's it. I don’t know about the Apple agreement and just do itunes connect. But I think that they somehow resolved this issue, since, in my opinion, there are even more Appstore applications than from Google play.