There are are two fees you'll have to pay monthly for use of the mobile messaging tool. The first fee is a partnership with Action Network to access the mobile messaging features, which is based on how many messages you send per month, similar to a partnership for email features.
Twilio also charges for the services that you use. Pricing is based on the destination and type of message you are sending. They follow a pay-as-you-go pricing model to ensure a fair price no matter what you build. This pricing should be used as a guide. It does not include everything you might be charged for, depending on the features you use, and includes discounts Action Network has negotiated on your behalf. For a full pricing chart, click here.