Although the iTranslate app is labeled as compatible for Family Sharing and it's automatically added to the Family Library of apps unfortunately in-app products such as a subscription are not eligible for being shared in this format.

You can, however, share your PRO subscription with other iOS devices using the same Apple ID by restoring the purchase in the settings menu of the app.

You can also share it with other Apple and Android devices via an iTranslate account. Please find more information in our accounts section.