Diaposi vs SlidoYour slides and your questions, free.
Diaposi Session puts your own PowerPoint, PDF or Word file, your polls, your quizzes and your audience's questions in one place, and every participant follows the slides on their own device. Diaposi is free. There is no paid plan today, and participants never need an account.
The bottom line
Both tools take anonymous questions from the room and let people upvote the ones they share. The difference is where your slides live and how much you can ask.
With Diaposi Session your deck is inside the session: participants see the slide you are on, go back, take notes and, with a free account, keep the session as their own learning journey. Polls and quizzes have no quota on the free account.
Slido's free Basic plan allows 3 polls and 1 quiz per event, and exports start on its paid plans. Diaposi includes both, and the report, for free.
Diaposi and Slido, side by side
| Slido | Diaposi | |
|---|---|---|
| Price to start | Slido: Basic free; Engage €15 per member per month, billed yearly, excl. VAT | Diaposi: Free. No paid plan today |
| Polls on the free plan | Slido: 3 per event | Diaposi: Six poll kinds, no poll quota |
| Quizzes on the free plan | Slido: 1 per event | Diaposi: Live quizzes built from your slides, written or imported, no quiz quota |
| Your slides | Slido: Works beside PowerPoint and Google Slides through integrations; no slide upload listed | Diaposi: Upload PowerPoint, PDF or Word; participants follow it on their own device |
| Audience Q&A | Slido: Unlimited, with upvotes | Diaposi: Anonymous on every slide; upvote a question already asked and see how many are behind it; pin and mark answered |
| Results after the session | Slido: No export on Basic; Excel, PDF and Google Sheets from Engage | Diaposi: A report slide by slide, as PDF or CSV; each participant can keep a personal report with a free account |
Your deck, inside the session
Upload the PowerPoint, PDF or Word file you already have, up to 50 MB, and present it from Diaposi. Every participant opens the slide you are on, on their own phone, tablet or laptop, can go back to any slide you have already shown, take private notes, draw on their own copy and mark each slide Got it or Review.
With Slido, the slides stay in PowerPoint or Google Slides: Slido adds its polls, quizzes and questions beside them through integrations.
Ask as much as the lecture needs
Polls come in six kinds: yes or no, true or false, multiple choice, rating scale, free answer and word cloud. Add a live quiz built from your own slides, or one you write or import, as often as the session calls for it, and read the room with Class Pulse as you go.
Slido's free Basic plan stops at 3 polls and 1 quiz per event; unlimited polls and quizzes start on Engage.
Questions from the room, and the report after
Participants ask anonymously on any slide. When someone has the same question, they upvote the one already asked, and you see how many participants are behind it. You pin a question, answer it and mark it done.
When the session ends, the report keeps it slide by slide: participation, reactions, questions, poll and quiz results. Export it as PDF or CSV, and each participant can keep a personal report with a free account. On Slido, exports to Excel, PDF or Google Sheets start on Engage.
The question the whole room is asking, on your screen
Participants ask anonymously on any slide and vote up the questions they share, and each question shows how many participants are behind it. When the room rallies behind one, it rises onto your stage on its own, with the slide it was asked on, so you can answer it before you move on.
In the questions panel, new questions wait behind a pill so the list does not jump while you read. Pin a question for later, mark it answered once you have covered it, or jump straight to its slide. Participants can also send you a private message that never enters the public list, and every question stays in your report afterwards.
See Diaposi SessionParticipants keep your lecture, not just their answers
Because your deck is inside the session, every participant has the slides on their own device: they go back to what you have shown, draw on their own copy and keep notes you never see. With a free account, they open a summary of the presentation and, on each slide you have reached, a Learn more card that explains it simply, gives another example and lists what to know first.
When they leave signed in, the session becomes their own learning journey: your slides, their notes and their Got it and Review marks, ready to resume. From there they can quiz themselves chapter by chapter and come back to the pages they marked Review, long after the room has emptied.
See how following a lecture worksEverything Diaposi does with the same deck
Diaposi Session is one part of Diaposi, the EdTech platform for interactive and measurable learning. The PowerPoint, PDF or Word file you present can also be followed by learners at their own pace, turned into a mock exam built from the same course files, and measured from one session to the next, all with one free account. Participants never need an account or an app to join.
Present your deck, live
- Your PowerPoint, PDF or Word file as it is; a Word document scrolls like a document
- Six kinds of polls, and quizzes built from your slides, written or imported
- Anonymous questions the room votes up; the one it rallies behind rises onto your screen
- Your ink, laser dot and whiteboard pages appear live on every participant's screen
- Open with the room's expectations, close by asking whether they were met
Follow at every participant's pace
- Participants follow your slide, go back to any slide shown and keep notes you never see
- With a free account: a summary, and a Learn more card on each slide you have reached
- Signed in, each participant keeps the session as their own learning journey
- Learners can also upload your deck and follow it alone, with Quiz me and chapter checks
Practise under exam conditions
- Up to 6 course files become one mock exam, with chapters found in your own documents
- Run it with your class: one clock, private extra time, every paper handed in at its deadline
- Written answers marked criterion by criterion; one that cannot be marked waits for you
- Learners practise alone too: a grade out of 20 and the pages to reread
Measure what was learned
- A report slide by slide after every session, as PDF or CSV
- Quiet signals: the slides participants went back to after you had moved on
- Your lecture evidence: every session in one view, compared with the period before
- Mock exams graded out of 20, by question, by chapter and for each participant
Pricing and free-plan limits
Slido's plans as its pricing page lists them for European visitors in September 2026, beside Diaposi's.
Slido
- Basic€0
- 100 participants, 3 polls and 1 quiz per event, unlimited Q&A. No exports, no moderation.
- Engage€15
- Per member per month, billed yearly, excl. VAT. Unlimited polls and quizzes, exports, up to 200 participants.
- Professional€60
- Per month, billed yearly, excl. VAT, 2 members included. Adds moderation.
- One-time events€60 to €499
- A single event, paid once.
Diaposi
- Free account€0
- Every live feature, with no monthly participant cap and no quota on polls or questions. There is no paid plan today.
- No account€0
- Try it straight away, up to 3 sessions a day, one at a time, to present and take questions. Polls, quizzes, Class Pulse and saved reports come with the free account.
- Participants€0
- Never need an account or an app. They join with a QR code or a six-character code.
How Slido's free plan works in practice: a lecture with a warm-up poll, two checks along the way, a word cloud and a closing quiz already needs 4 polls and 1 quiz, one poll more than Basic allows in a single event.
Switch in three steps
- 1
Take the file you already have
Your PowerPoint, PDF or Word file. Nothing to rebuild, no template to fit into.
- 2
Upload it
Up to 50 MB. While it converts, choose how far ahead participants can look and whether to open with their expectations. Polls and quizzes launch live, from your slides or from a quiz you import.
- 3
Share the code
Participants scan the QR code or type the six-character code in their browser. No account, no app.
Questions people ask
Is Slido free?
- Slido's Basic plan is free with no end date. It allows 100 participants, 3 polls and 1 quiz per event, with unlimited Q&A, but no data exports and no question moderation (September 2026).
What are the Slido free version limitations?
- 3 polls and 1 quiz per event, 100 participants, no export to Excel, PDF or Google Sheets, no moderation and no custom poll images. Paid annual plans start at €15 per member per month, excl. VAT, for European visitors.
Can I upload my slides to Slido?
- Slido works beside your deck: it adds polls, quizzes and Q&A to PowerPoint, Google Slides, Teams and Zoom through integrations. In Diaposi you upload the PowerPoint, PDF or Word file itself, and participants follow it on their own device.
What is a free Slido alternative for Q&A?
- Diaposi Session includes anonymous Q&A on every slide at no cost: participants upvote a question already asked, and you see how many participants are behind it. It is part of Diaposi, the EdTech platform for interactive and measurable learning.
What else does Diaposi do?
- Diaposi is the EdTech platform for interactive and measurable learning. Besides live sessions, learners can follow a deck at their own pace with an explanation on every page, you can run a mock exam graded out of 20 with your class, learners can practise alone from their own course files, and every session adds to one record of your teaching. It is free, with no paid plan today.
Is Diaposi free?
- Yes. Diaposi is free, and there is no paid plan today. A free account opens every live feature. Without an account you can try it for up to 3 sessions a day, one at a time, with presenting and questions; polls, quizzes, Class Pulse and saved reports come with the free account. Participants never need an account or an app.
Try it with your own deck
Drop a PowerPoint, PDF or Word file and your session opens. No account needed to try it, and nothing to pay.
By uploading, you accept Diaposi’s and .