For teachers · classroom, free to play
No student accounts. No login to play.
The clock gives no points, and it can be switched off.
The whole class answers on their phones, and you show the questions on the board. There is nothing to sign in to, and no names and no answers from single students are left behind afterward. This page is about what is true in a classroom today, and about what is not built yet.
Start with the whole class →Free to play · No student accounts
Try it yourself first. Five questions, alone on your phone.
What is true in the classroom
Playing costs nothing, and the size of your class never changes the price. Students never make an account and never type an e-mail — they open /join and answer. The teacher needs no account to run a quiz either. The weekly Friday quiz and the ready-made quizzes are free with no limit. Rounds of your own, written from your topic or your plan, start with 50 free trial questions when you sign in, or 10 without signing in (pricing). In a room with children, names are always handed out rather than typed, so nobody has to see a classmate choose an unkind one, and a teacher can swap any name in the lobby, before the game starts.
No names and no answers from single students survive the lesson. The session lives in memory while the game is open, with a copy in our storage so the game can go on after a server restart. The copy is deleted when the game ends, and the session ten minutes later — no result sheet per student, nothing about a student to request the deletion of. If you are signed in, the rounds you make are saved on your account until you delete them, with numbers for each round: how many played and how many answers were correct. In a small class those numbers can point to the students who played. Without signing in, we keep no copy of the questions, and a round of your own is kept only in your own browser, for seven days. Also kept is the topic you typed, in a log for 30 days. Privacy has the whole list. Read about the three question forms and how a round plays on the quiz page.
A quiz on what your class covered: paste this week's plan, unit or learning goals into the field on the classroom page, and klapp writes ten questions from that text and nothing outside it. You read every question, with its answer, before anything starts, and strike the ones you will not stand behind. The text is not stored. The same round can be played again for a parallel class, for free. It works in the same browser, for 7 days after the round was made.
Why the clock can be switched off
A post on Kahoot!'s own support forum reported that some students had said that "seeing the timer on the screen creates anxiety", and Kahoot! staff answered in the same thread that "Kahoot! does not offer a feature to completely disable the timer during live games."
Corrected 19 September 2026. That reply is not the whole picture today. Kahoot's help centre now describes an Accuracy mode with no speed bonuses, and an Unlimited time setting for live Accuracy games, read 19 September 2026. In Classic mode, points still depend on speed.
Corrected 19 September 2026. We had written that a teacher on the forum said the timer creates anxiety. The post passes on what some students had said, and it does not say whether its author is a teacher.
The research gives a fuller picture. Wang & Tahir (2020) reviewed 93 studies of Kahoot in classrooms and found mostly positive effects, including on anxiety: ten of the fourteen studies that reported on it found less anxiety, not more. Among the challenges students reported were stressful time pressure (four articles) and fear of losing (two), and teachers reported that scoring by speed can reduce reflection and lead to guessing. The first author, Alf Inge Wang, is one of the co-founders of Kahoot!, according to NTNU. The research page on speed and anxiety has the details and sources.
Corrected 19 September 2026. This paragraph said the two most frequently reported problems in the review were time pressure and competition anxiety. The review does not say that: the challenge mentioned by most articles was internet connections, fear of losing is its phrase rather than competition anxiety, and its overall finding on anxiety is positive. We had also left out that the first author co-founded Kahoot!.
In klapp, answering fast earns nothing — the fastest thumb in the room and the student who reads every option twice score the same. The countdown can be hidden on every screen. Hiding it does not stop it: the answer window still closes at the same time, and a teacher can give the class 10 more seconds while answers are open, and again if that is not enough.
Added 19 September 2026: wait for everyone. For a class the clock works against, the teacher can switch the clock off. There is no countdown on any screen, and answers close when every connected student has answered, or when the teacher closes them. A phone that drops out is not waited for. The switch takes effect from the next question.
Not a school product today
klapp is not sold into schools, and nothing here claims otherwise. There is no login for students, no class list, no gradebook and no integration with a school system. A teacher can open a game the same way anyone else does. Signing in with Google or Microsoft is not needed to play. It matters for rounds of your own: without it, everyone on the same school network shares 10 trial questions, and signed in you get 50 trial questions on your account. If you need more, Teacher is 49 kr a month or 549 kr a year for 120 questions a month, in Norway. It renews until you cancel; outside Norway it is sold only where the pricing page lists your country.