CompTIA FlashCard App

Networking_Student

I'm making a CompTIA flash-card application.
What I want to know, is what do you think is a fair price for in-app content?
20 preset flash cards will be free for each certification of 901, 902, and the Network+ and Security+ exams, but how much to expand to say 100 cards for an exam?
What is a fair cost? What would you be willing to pay?
I was also going to include a study notes section as well.

Would subscription version be better? If so, how much?

ITSpectre

Honestly Most of the apps that are out already are free. But I would pay 3-5.00 for a flashcard app.