How long does it take for Apple to review apps for publishing in the app store?

Question

Apple App Store

We made applications on Android and iOS, the client publishes them himself from his accounts.
The Android application has already been published, iOS has been quiet for the 3rd day, should I worry? ...Deadline for which applications should be in the market in a week.
How long does it take for Apple to review apps for publishing in the app store?
And how fast do they consider app updates?
Thanks for the answer. If you don’t kick something, I’m new to the Toaster, with the search for something I couldn’t find up-to-date information (

Answer 1

How long does it take for Apple to review apps for publishing in the app store?
It took us an average of 4 days.

Answer 2

Maybe a month

Answer 3

As a result, about 4 days also passed, after which it was rejected for us due to the fact that we did not indicate in the description that we use Apple Health, we made changes to the description, re-sent it, and the application appeared in the market 4 days later.