Free live Q&A and reaction tools for talks, compared

We build EVOCA, so read this with that in mind. We've tried to describe every tool from its own website, and where a vendor's page didn't say something clearly, we say so instead of guessing.

The quick version: Audience Reacts is emoji reactions only. QuestionWall and PostoBox are Q&A-first tools that also do polls. PollsLive is a polling tool (a Slido/Mentimeter-style deck) that also includes Q&A. LiveSpeakr is for speakers collecting ratings after a talk. EVOCA is upvoted Q&A plus live emoji reactions, made for conference talks. EVOCA does not include live polls.

One-line summaries

• Audience Reacts (by stagetimer.io): A free, no-signup page where the audience taps emoji that float across a screen or stream overlay. No Q&A.
• QuestionWall: A free, browser-based live Q&A tool with anonymous questions, upvotes, moderation, plus polls and quizzes. The free plan covers 3 events a month.
• PollsLive: A live polling and quiz tool (11 question types, including upvoted Q&A) with a small free tier and a pay-once Event Pass.
• PostoBox: Live Q&A, polls and questionnaires for events, with a projector/OBS display page. The free plan covers 3 events and 50 questions per event.
• LiveSpeakr: Speaker feedback through a QR code: NPS-style ratings, comments and PDF reports for getting rebooked. Q&A and polls are on Pro.
• EVOCA: Live upvoted Q&A and emoji reactions for conference talks. People join from a QR code or link in the browser with no app. Free for speakers (5 talks) and for organizer events up to 100 attendees. No polls.

Comparison at a glance

Prices are what each vendor's own page showed on 2 November 2026. Prices change, so check before you budget.

The tools

1. EVOCA

Best for: Conference and meetup talks where you want a lively room and good questions, not slide polls.

Attendees scan a QR code or open a link and can send emoji reactions and ask or upvote questions from their phone browser. They don't need to install anything. The speaker gets a live view, and organizers can put a live wall on the projector. Speakers can also upload PDF/PPTX slides or embed them, and use their phone as a slide remote. EVOCA does not include live polls, quizzes or word clouds. If you need those, one of the tools below is a better fit.

Speakers get 5 talks free forever, and Speaker Pro is €5/month billed yearly for unlimited talks with no watermark. Organizers can run an event free for up to 100 attendees and one admin. A One-time Event is €49 for a 7-day window with unlimited attendees, Growth is €29/month with call for papers and 3 admins, and Scale is €89/month billed yearly. Current plans are on the pricing page.

2. Audience Reacts (by stagetimer.io)

Best for: Adding emoji reactions to a stream or a confidence monitor for free, in under a minute.

Audience Reacts is a small free tool from the makers of Stagetimer. You create a room with one click and no signup, share the link or QR code, and reactions float across an output screen. The output has a transparent background, so it works as an OBS or vMix browser source. You can choose your emojis (2 to 6 per room) and backgrounds. It has spam cooldowns and a live analytics chart, and the site says it's built for thousands of participants at once.

What it doesn't do: questions. There's no Q&A, moderation or speaker view. If reactions are all you need, it's hard to beat free and no signup. If you also want the room's questions, you'll need a second tool. EVOCA does reactions and upvoted Q&A from the same QR code.

3. QuestionWall

Best for: A free, no-frills live Q&A for a few events a month.

QuestionWall is a browser-based Q&A platform. Attendees join from a link or QR code with no app and no login, and can ask questions anonymously or with their name. Questions are ranked by votes, and hosts can pin, hide, delete, tag and filter them. It has a presenter mode for the big screen and a stream mode, and it also runs multiple-choice polls and quizzes. The free plan allows 3 events a month with unlimited questions. Pro (20 events a month) and Business (unlimited) add AI features, custom branding, moderator access, export and YouTube chat sync.

Pick QuestionWall if you mainly need Q&A plus the occasional poll. Pick EVOCA if you want emoji reactions next to the Q&A and a setup built around conference talks and speakers. QuestionWall's site doesn't list emoji reactions.

4. PollsLive

Best for: Slido/Mentimeter-style polls and quizzes on a smaller budget, or a single paid event.

PollsLive is a polling deck tool. It has 11 question types, including multiple choice, scored quizzes with a leaderboard, word clouds, ranking, rating scales, planning poker, brainstorm, and Q&A with audience upvotes. People join with a 6-digit PIN or QR code, with no app and no account. The free plan covers 3 published polls, 500 responses each, 50 live participants and 3 live sessions a month. Q&A moderation (approving questions before they show) is on the paid plans. Its Event Pass is a one-off payment for one event day: $19 for up to 300 people, $49 for 1,000, or $99 for 1,500. The site also says it's hosted in the EU.

PollsLive and EVOCA overlap only on Q&A. If polls are the point, PollsLive is the better fit, since EVOCA has none. If the point is questions and reactions across a multi-day conference, compare PollsLive's per-day Event Pass with EVOCA's €49 One-time Event, which covers a 7-day window.

5. PostoBox

Best for: Event organizers who want Q&A, polls and questionnaires in one link, with an OBS-friendly display.

PostoBox (from sudo127) covers live Q&A with upvotes, anonymous or signed-in questions, optional moderation, and external moderator links that need no account. It also has single and multiple choice polls, multi-question questionnaires that can be presenter-led or self-paced with timers, CSV export, and an API. Attendees open one event link and see each poll or questionnaire as you launch it. The free plan includes 3 events, 50 questions per event, 1 poll and 1 questionnaire per event, and up to 3 team members. Paid plans raise those limits, but we couldn't find the paid prices on the pages we read.

Pick PostoBox for town halls and corporate events that mix Q&A with surveys. Pick EVOCA for talks where you want reactions and questions without polls.

6. LiveSpeakr

Best for: Professional speakers who want ratings and a report to show organizers.

LiveSpeakr is built around the end of the talk. You put a QR code on your last slide, the audience rates the session (NPS-style on the free plan), and you get a live dashboard and a PDF report to share with organizers. The free plan includes NPS-style feedback, up to 3 events, email collection and CSV export. Pro adds unlimited events, polls (multiple choice, emoji, word cloud), moderated audience Q&A, raffles and freebies for feedback, and branded PDF reports. Enterprise adds a conference mode with speaker leaderboards.

It answers a different question than EVOCA. LiveSpeakr asks "how did I do?" after the talk, while EVOCA keeps the room talking during it. Note that LiveSpeakr's Q&A is on Pro, while EVOCA's free speaker plan includes Q&A and reactions.

When to pick EVOCA

• You're running talks at a conference, meetup or hackathon, and you want upvoted questions and live emoji reactions from one QR code.
• Your audience won't install anything. EVOCA runs in the phone browser.
• You want a free start: 5 talks free forever for speakers, or up to 100 attendees free for an organizer event.
• You'd rather pay once for a conference weekend (€49 for 7 days, unlimited attendees) than buy a subscription.

Pick something else when you need polls, quizzes or word clouds (PollsLive, QuestionWall or PostoBox), only want free emoji on a stream (Audience Reacts), or mainly want post-talk ratings for your speaker portfolio (LiveSpeakr). If you're comparing Mentimeter in particular, the Mentimeter alternatives guide is the longer list. The established products are on their own pages: EVOCA vs Pigeonhole Live for conferences, EVOCA vs AhaSlides for meetups and talks, and live engagement tools for hackathons for Devpost and Discord.