No. You will not be charged automatically after your first 30 days of Heedy.
You do not need to provide a payment card to start your 30 days free.
What happens after 30 days?
If you do not choose a paid subscription, you automatically continue with Heedy Free.
There is no automatic upgrade to Heedy Family and no automatic paid subscription.
When will I be charged?
You will only start a paid subscription if the family admin chooses to upgrade to Heedy Family and completes the subscription process in the Heedy mobile app.