After you have downloaded the photovoltaics app free of charge to your smartphone or tablet via your app store (Android or iOS), a login window appears. Here you can either register free of charge or log in directly with your usual login data from the K2 Base planning software. Logging in with a user account is mandatory so that the app can directly synchronise your project data from K2 Base, for example, or so that you can share projects with others. And don't forget: One account for all digital K2 services! Because with your K2 user account you can use the planning software K2 Base as well as K2 Check and also the K2 DocuApp.
So that you can try out the K2 DocuApp first, a trial package of a total of five free documentations is automatically available to you at the start. Only from the sixth project documentation onwards will you incur costs of 3.49 euros per project. All information on payment can be found here again in detail.