Yes, the CHANI app supports Apple’s Family Sharing feature on iOS devices. This allows you to share your subscription with your family.
Please note that Apple requires all family members to use the same country or region settings in order to use Family Sharing. Sharing subscriptions only works for subscription periods when the billing cycle starts after the time you added your family members. It doesn't retroactively give access to subscriptions that were billed prior to setting up your Family Sharing group. If you or a family member encounter the paywall while using a shared subscription, look for and select the option at the bottom that says, “Restore my purchase.”
If you need help setting up Family Sharing, please contact Apple Support by calling 1-800-275-2273.