Mentimeter vs Slido: Which Is Better for Presentations?

Overview: two different products for similar audiences

Mentimeter and Slido are the two dominant paid polling platforms for live presentations. They share a target customer — conference organizers, corporate trainers, professional presenters — but differ in focus. Mentimeter is built around visual presentation design; Slido is built around Q&A and audience interaction at scale.

Both have free tiers that are meaningful entry points but hit hard limits quickly. Understanding where each product draws the free-tier line is essential before choosing one for regular use.

Mentimeter: strengths and limits

Mentimeter's visual design is the best in the category. Results displays are polished, customizable, and presentation-ready. The question type library is extensive: word clouds, scales, open-ended, image choices, and more. For presenters who want professional-looking poll results, Mentimeter is the standard.

The free tier limits you to 2 questions per presentation. Any slide deck with more than two interactive elements requires a paid subscription starting at around $12/month. Audience members also need to navigate to a URL — there's no QR code display in the free tier. These limits make the free tier impractical for anything beyond a single demo question.

Slido: strengths and limits

Slido is better for large-scale events and Q&A moderation. The audience upvoting feature — where respondents vote on questions submitted by others — helps surface the most popular questions at conferences where hundreds of people are submitting simultaneously. The moderation interface is cleaner than Mentimeter's for managing high question volume.

The free tier requires account creation for the presenter and significantly limits the number of participants. For events above 100 attendees, Slido requires a paid plan. The audience interface is functional but less polished than Mentimeter's results displays.

The free alternative: rifts.to

For presenters who want genuinely unlimited free polling without either platform's constraints, rifts.to fills the gap. No account required (for you or your audience), no question limits, no response limits. Your audience fills in an anonymous form — no login required. The tradeoff is a simpler visual design than Mentimeter's premium tier, but for most presentations, clean and functional beats polished but paywalled.

The bottom line: if you present professionally and need maximum design quality, Mentimeter is worth the subscription. If Q&A moderation at scale is the priority, evaluate Slido. If your constraint is cost or setup friction, rifts.to is the right starting point.