card2brain is available as a single license in Basic, Premium and Teacher versions. The Basic plan is free of charge. With the Premium and Teacher paid subscriptions, you can use even more functions and make advanced privacy settings. We offer corporate subscriptions for classes, teams, departments or entire schools and companies. card2brain Corporate is available as an Enterprise license for companies and as an Educational license for schools. The price calculator on the respective info page will tell you how much these volume licenses cost. The annual fee for the individual licenses can be found in the subscription overview. Downloading the card2brain apps is free of charge. You can also purchase a Premium or Teacher subscription on the iOS app and on the Android app as an in-app purchase at the prices indicated there.