I purchased the pro-feature and have Family Sharing but my wife, who is on my account cannot access to hat feature. How can this be fixed?
Posted on September 3, 2018
Sorry, but Apple is not support in app purchases in Family Sharing.
Read more: https://support.apple.com/en-us/HT203046
You can try login with your account on the second device and make «Restore purchase» in app.