Process for updating existing iOS App

We have an existing iOS App that we need to update (we’ve already gone through the process to update the Android App). For Android, we needed to find the original certificates from when we first created the App (a long time ago) in order to update the existing App. I just wanted to see if for Apple we can start from stratch with Voltsigner in order to update the existing app, or if we NEED to have the originals (like Android). If we need the originals, which files do I need at a minimum.

You can start from scratch using VoltSigner. You’ll need to get the stuff from the Apple Developer site - VoltSigner will help with that.