I recently updated an app for a client and it's now ready for submission to the App Store. But after a talk with my client they told me that the previous version (not developed or submitted by me) had a kind of "password protection" on the App Store. They explained it as anyone could find the app on App Store but when you click "download" the user would need to enter a password (not the Apple ID password, more of a predefined password specifically for this app) to continue the download process.
I am used to submitting apps to the App Store, both paid and free, but I have never done this and don't honestly know how. My closest guess is that we need to upgrade the plan to an enterprise account, but from my understanding (and please correct me if I'm wrong) this will remove the app from the App Store search and only allow download from a link or file?
What way would you guys recommend?
Thanks in advance!