Pearson API is pretty nice for different innovative mobile apps.
But there is the issue with paid apps and in-app purchase business models and Pearson API business model. When the user pay for the application or buy something inside he would like to own and use it as much as he want, similar as he does with paper Pearson products(buying a paper dictionary for example). According to Pearson API terms and condition the data on the mobile phone of particular user could be stored up to 7 days. That means that paid feature or app should dissapear from user phone in 7 days or app owners should pay forever for Pearson API while user uses it.
Seems like paid apps or in-app purchase models for apps based on Pearson content will be unprofitable. Also looks like it is impossible to use app with Pearson content offline(or just 7 days).
However, there are no any issues with ads business model(free apps with ads inside) and subscribtion model.
But the problem is that many innovative apps require offline usage and paid/in-app purchase business model.
Could you please help if exist any solution around it?