Each of the basic features on Spiral are free and will remain free to individual teacher accounts forever. What this means is that everything you can see when you first sign up is free and will remain free forever.
We will be launching the Spiral PRO upgrade soon, which, for a very small annual fee, will give access to our flipped learning features and extra features in the apps.
Spiral School/District licensing is also available, which includes integration with your school's systems (eg. Moodle).
For corporate use, please contact us for pricing and more information on our "Spiral Training" services.