Guide
5 free conference engagement tools
You don't need a big budget to make a conference interactive. Here are five tools you can use for free, with the real limits spelled out, so there are no surprises on event day.
Last verified: March 2026
"Free" means different things across these tools. Some offer an ongoing free tier; others cap questions, polls, or participants; one isn't a live tool at all but is still useful. We've noted the catch for each so you can plan around it.
We build EVOCA and list it first, but the limits below are described honestly, including where a free plan will run out before your event does.
Free up to 100 attendees
EVOCA's free tier includes live Q&A, polls, and real-time emoji reactions for events up to 100 attendees, with no credit card and no app download. It's a genuine free tier for small conferences and meetups, not a time-limited trial.
Free with per-event feature caps
Slido's free plan lets you run polls and Q&A with caps on the number of polls per event. It's enough to trial the format; heavy use pushes you to a paid plan.
Free with a question limit
Mentimeter's free tier is great for visual polls but limits the number of questions per presentation. Good for a single interactive session rather than a full multi-talk event.
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AhaSlides
Free with a participant cap
AhaSlides offers quizzes and polls for free up to a set number of participants per event. Confirm the current cap, as it changes and can be low for a conference room.
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Google Forms
Completely free
Not built for live engagement, but genuinely free and reliable for pre- and post-event surveys. Pair it with a live tool for in-the-moment reactions and Q&A.
Frequently asked questions
Free for events up to 100 attendees
Free for events up to 100 attendees. No credit card, no app download, and your audience joins in seconds.