It is week nine. Four of you sit in the same lecture, take the same notes and build the same summary from the same forty slides. Nobody compares anything until the night before the exam, when it turns out one of you misread the chapter on hypothesis tests.
Studyflash lets you study together on one set of material. One person builds the deck for the module, shares it as a link, and everyone else saves a copy of their own in one click. After that you can see how far the others have got, and settle what you disagree on in a live quiz.
What you can share
One deck
Any deck goes out as a link. Whoever opens it previews the cards, then saves their own copy in one click.
A whole course
A course travels the same way, with every deck inside it. Send that one when a module has been running since October.
A live quiz
A quiz duel is real-time multiplayer on any topic, or on a deck you already have, with a leaderboard moving while everyone answers.
What changes when four of you share one deck
The building happens once instead of four times, and the three who did not do it still have the cards on the morning of the exam. What you do with the hours you get back is the real gain: answering from memory is what sticks, and a quiz duel is that with somebody watching. Inside a study group you also see each member's progress on a leaderboard, and you choose whether it ranks by cards reviewed today, minutes studied today or current streak. The streak is usually the one people argue about.
Where it works
Groups, shared links and duels run in the browser and in the iPhone, iPad and Android apps. A deck you save from a link is your own copy: edit it, add cards, study it on your own schedule.
When a group is worth setting up
A first-year statistics module, where the slides are dense and nobody wants to make the same flashcards four times over.
A language course before the oral exam, where a vocabulary list is easier to keep going with someone else on the board.
The last fortnight before the January exams, when a duel takes less organising than agreeing on a room and a time.
What this does not do
The free plan limits how many study groups you can be in, and Premium takes that limit off.
Nothing you share is published to a public library. A deck travels by link, between people who already know each other, and it never lands in a browsable collection.
Free to start
Building a deck, sharing it and playing a duel all work on the free plan, which comes with a monthly allowance of AI generations. The pricing page sets out what each plan includes.
Questions and answers
Yes. Sharing works on the link, not on the group, so anyone you send it to can open it and preview it before deciding to keep it.
No. Everyone who opens a shared link saves a copy of their own, so your edits and your review history stay on your side. If you want the group working from one corrected version, share the deck again once you have fixed it.
You can. A duel runs on a topic you name as well as on a deck, which suits the seminar nobody has written cards for yet.
Once it is saved it behaves like any deck you made yourself. Spaced repetition schedules it card by card over the term, or cram mode runs the whole thing the night before, and your progress counts towards your own daily goals.