- Runs in the browser with nothing to install, on LiveKit, a WebRTC media server. Camera video is sent in layers up to 360p, so a student on a weak connection gets a smaller picture rather than a frozen one. Everyone chooses their own microphone, camera and speaker, and can blur their background.
- Two modes. Screen or document keeps text sharp (1080p at 15 frames a second) for slides, websites and documents. Movie or video keeps motion smooth (720p at 30 frames a second) and sends the sound as stereo music rather than as a voice. Sound comes from a shared browser tab in Chrome and Edge, or from the whole system on Windows.
- Pen, line, arrow, rectangle, ellipse, text, move and eraser, in four colours, on a board every participant sees at the same proportions whatever their screen. It is yours alone by default; unlock it and your students can write on it too. Save it as an image or copy it, and it is saved with the lesson when it ends.
- Show a PDF or an image from the class's files, or upload one on the spot, and turn its pages for everyone; you and your students can write on each page. The plain board is one step before page one, so you can step out to work something through and come back to the slide you were on. Writing on a document lasts while it is on the board.
- Mute one student or everyone at once, switch a student's camera off, or remove a student, who then stays out until you let them back in. Students switch their own microphone and camera back on when they need to.
- Chat, raised hands in the order they went up, emoji reactions, and quizzes and polls with multiple-choice or open answers. Results come in live; students do not see the correct answer until they have given theirs, and your own answer never counts. There is also a countdown timer everyone sees, and a random picker that picks nobody twice until everyone present has had a turn.
- A lesson on the timetable is open to the whole class. A lesson you start off the timetable is invitation-only: invite students, or let them ask to join and admit or refuse each one. You can open it to the class at any time.
- Record audio only or audio and video; recordings are kept for 90 days and then deleted. A lesson can be transcribed, and the AI assistant can write a recap of it. Recording and the AI recap depend on your plan.
- For every student in a lesson: how long they spoke, how long their camera was on, the messages they sent in chat, the hands they raised and their quiz answers. Progress reports take these into account.
- Every lesson leaves a record: when it ran, who came, the board as it was left, and its recordings, transcript and recap.
- Live lesson time is counted against your plan for each period. The room tells you 20 minutes before your plan's time runs out, counts down, and closes when it does. A new lesson cannot start with less than a minute left.