Slido is a well-established audience interaction tool owned by Cisco. Amphioo is a modern alternative built from the ground up with real-time SSE-based updates, six distinct session types, and simpler per-organizer pricing. Here's an honest comparison.
| Feature | Amphioo | Slido |
|---|---|---|
| Live Polls | Yes — animated bar charts | Yes |
| Q&A with moderation | Yes — upvoting, pinning, comments | Yes |
| Quizzes with leaderboard | Yes — live leaderboard, medals | Yes (paid) |
| Surveys | Yes | Yes |
| Word Clouds | Yes — frequency-based visualization | Yes |
| Rapid Fire rounds | Yes — admin-driven sync flow | No |
| Projector mode | Built-in, real-time SSE | Yes |
| Free plan | 2 events, 50 participants | 100 participants, limited features |
| Pro pricing | $19/mo (yearly) | $15+/mo |
| Business tier | $59/mo — 2,000 participants | Custom quote |
| App download needed | No — QR code join | No — join via slido.com |
Amphioo includes a unique Rapid Fire session that Slido doesn't offer. The admin pushes each question synchronously to every attendee's screen and the projector, with per-question timing and a live leaderboard ranked by score then average response time. It's built for fast-paced team events, icebreakers, and training quizzes.
Amphioo's pricing is flat: $19/month yearly for Pro, $59/month yearly for Business. Slido's pricing scales with participant count and billing can get complex for enterprise buyers. If you run events regularly as a single organizer, Amphioo is typically cheaper.
Amphioo uses Server-Sent Events (SSE) for every live update: poll votes, quiz answers, Q&A approvals, word cloud submissions, and reactions. No polling, no refresh, no lag. Built on a modern React 19 + Express stack optimized for low-latency delivery.
Events in Amphioo have explicit states (draft, live, ended), status badges, auto-end logic, and a "view after end" mode for read-only Q&A access. Cloning an event copies all sessions with a fresh passcode — useful for recurring town halls or weekly workshops.
Slido has deep integrations with Microsoft Teams, PowerPoint, Webex, and Google Slides. If your organization lives inside these tools, Slido's embed-in-slide workflow is smoother than opening a separate tab.
Slido has been around since 2012 and has been battle-tested at large conferences, TED events, and enterprise town halls. If you need a vendor with a long track record and enterprise procurement, Slido has the edge today.
Choose Amphioo if you want modern real-time performance, Rapid Fire quiz rounds, simple flat pricing, and a platform that doesn't nickel-and-dime on session types.
Choose Slido if Microsoft Teams or PowerPoint is the center of your workflow and you need deep native integration there.
Join the Amphioo waitlist →