Yes, your free trial includes a free smrtPhone subscription - currently for 30 days. During that time you do not have to pay the subscription fees.
We also give you $7 of credit to secure your first phone number and have funds remaining to make test calls and texts to get hands-on experience with smrtPhone.
The free trial subscription is limited because it is intended for trying out the system. Activating the subscription will remove all limitations and will charge your first month's subscription.