I use this app for language studies, and the concept is nice. The layout is clean and the cards are highly customizable. But Traverse is basically unusable, and the website has its issues too. It basically takes ages to even load one flashcard, Traverse constantly crashes; it feels more like a struggling old web browser inside an app than an app itself. And this reflects the website too, which is not quite as bad to the point of unusable, but also very unstable and slow. Add to that I have about 5,000 flash cards and this app just can’t handle it. It’s also a nightmare just to edit a card. I have no choice but to use it since it’s linked to my curriculum, but I really wish they could improve Traverse .