Unfortunately, we currently do not offer any family plan at the moment.
However, family members can now share purchased apps and subscriptions with their loved ones by using the Family Sharing (iOS) and Family Library (Google) feature. You can set up anytime with the below procedure:
iOS: https://support.apple.com/en-us/HT201088
Android: https://support.google.com/googleplay/answer/7007852?hl=en