Sharing Apps between 2 ID's
I have shared my Apple ID with my wife for at least 15 years, sharing calendars, contacts, notes, iCloud, etc. We decided to use separate ID’s now while still retaining the shared apps, but when she added her new ID, we ran into problems. I need to know how to get back our shared apps. We are on iOS 11.2.5 and Sierra and El Capitan. Thanks.
MacBook Pro with Retina display, macOS Sierra (10.12.6)