If you have enabled family sharing for subscriptions, in your Apple account settings, then your family members should immediately get access to Kiddopia subscription without the need for a Kiddopia account.
Please follow the below steps to turn ON Family Sharing -
Alternatively, you can also share your subscription on another device by following the below steps -
Once you have signed in, please follow these steps on the devices that you’d like to share the app using the same account to sign in that you used above.