My family previously used a single shared AppleID for the app store, allowing us to share purchases including 1PW V4. Agile Bits frequently highlighted this capability.
With iOS 8, we have switched to Family Share -- each member has his/her own ID. The original purchaser is in the "family". This would not have been a problem, except that 1PW has switched to a freemium model.
When a Family member updates a free app, iTunes re-purchases it under their own ID. It does NOT download the update from the account of the family member who bought the app originally. I think this means that all family members except the one who bought V4 will appear as "new" users, and be subject to the 9.99 in app purchase.
Is that correct?
If it is, the update to 1PW5 will cost my family $40.
Very happy 1PW user, and sympathetic to the difficulties developers face when offering apps through app store. That said, very frustrated about transition to "Free".
AgileBits edit: Apple does not apply in-app purchases ("IAPs") to Family Sharing. Please see post #43 in this thread for further details. We apologize for the inconvenience.