Easiest way to generate own cards

This is the only app I found where you can upload your own flashcards without the need to register somewhere. Upload is really easy, copy-paste the text of the flashcards into the upload window and download it to your device. The flashcards are private and can be deleted after the upload or can be shared within a group by providing a self-chosen code.

Gisahr about Flashcards Deluxe, v3.0.1