How does my Jellies subscription work?
Jellies starts with a 30-day free trial. The trial offers access to all features of Jellies and more specifically, it enables "Kids Mode" to watch videos.
At the end of the trial, you will be subscribed to the Jellies Subscription service. You will not be able to cancel the subscription for the current period once activated. We cannot refund any portion since payment is controlled via Apple and Amazon. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period.
For iOS
Subscriptions will be charged to your iTunes account. Manage your subscriptions in your iTunes Account Settings after purchase. Tap the link to immediately be taken there.
https://support.apple.com/en-us/HT202039
For Amazon Appstore
Manage your subscription through the Amazon Appstore under "My Apps" and then "Subscriptions."