Mentimeter turns passive audiences into active participants. PureBrain turns passive professionals into people whose AI knows them deeply. Engagement in the moment — versus intelligence that accumulates between moments.
Mentimeter's entire design philosophy centers on anonymity and session-by-session freshness — participants join with a code, respond, and leave. That's a feature, not a bug. PureBrain's entire design philosophy centers on the opposite: persistent identity, remembered context, and an AI relationship that deepens over months and years. They're not competing for the same value.
Side by side across every dimension that matters. Two tools for two different parts of professional life.
| Dimension | Mentimeter | PureBrain |
|---|---|---|
| Core Purpose | Make presentations interactive — transform passive audiences into active participants | AI partnership An AI that learns who you are and builds on every conversation |
| Memory Model | None Anonymous by design. Responses reset each session. No user profiles. | Persistent Memory of your goals, history, preferences, and growth across all sessions |
| User Relationship | Audience member — passive to active within a session. Relationship ends when session ends. | Ongoing partnership AI that knows you grows more valuable with every interaction |
| AI Capabilities | AI Menti Builder (slide generation from prompts), AI Grouping (response clustering) | Core product Conversational intelligence, strategic support, compound memory, decision context |
| Switching Cost | Near zero Participants join with a code each time. No relationship to maintain. | Grows with use The deeper PureBrain knows you, the more valuable — and the less you'd want to leave |
| Pricing | Free (50 participants/month) to ~$27/mo/presenter (annual only). Enterprise custom pricing. | From $197/month. All-inclusive. No per-presenter pricing. No surprise annual commitments. |
| Primary Use Case | Corporate meetings, L&D training sessions, university lectures, conferences | Always on Daily professional thinking, strategic decisions, knowledge retention, ongoing coaching |
| Value Timing | During the presentation. Value ends when the session closes. | Compounds over time Every session builds on the last. Value increases with use. |
| Data Collected | Aggregate anonymous responses — useful for the presenter, invisible to the individual | Individual longitudinal Your personal context, history, and intelligence — yours, not aggregated away |
| Enterprise Penetration | Very high 95% Fortune 500 penetration. 500M+ registered users. | Growing. The personal AI layer that even Fortune 500 employees need individually. |
| Onboarding | Extremely fast for participants (code/QR, no app). Presenter setup takes minutes. | 5 minutes Guided onboarding. Your AI introduces itself to you. Immediate value. |
| Competitive Threats | Slido (Cisco), Kahoot, Poll Everywhere, AhaSlides, Wooclap | ChatGPT Teams, Microsoft 365 Copilot, Glean (enterprise layer only) |
| Where They Overlap | Corporate L&D and training contexts. Mentimeter for live session engagement. PureBrain for ongoing development and knowledge retention between sessions. Potentially complementary. | |
| Ideal For | Presenters who want two-way engagement during live sessions with audiences of any size | Individuals who want a persistent AI that knows them and compounds their professional intelligence |
These tools serve genuinely different needs. Some professionals need both — for different parts of their work.
Mentimeter owns the moment. PureBrain owns everything between moments. Here is what that means in practice.
Mentimeter's anonymity is a feature: no persistent user profiles, responses reset each session. PureBrain's persistent memory is the entire product. Your AI learns your goals, remembers your decisions, and builds a model of you that gets more accurate with every conversation.
Mentimeter delivers value during a session — when it ends, the value is in the aggregate data report. PureBrain delivers value that compounds. Session 100 is dramatically more useful than session 1 because your AI knows 100 sessions' worth of who you are.
Mentimeter helps you manage an audience in the moment. PureBrain helps you think, decide, and grow as a professional across years. One is a presentation tool. The other is an intelligence partner. Different jobs for different parts of your work.
Mentimeter sees aggregate responses from anonymous participants. PureBrain sees you — individually, persistently, and with context that only deepens over time. The AI that knows you is fundamentally different from the tool that collects from a crowd.
Mentimeter helps you run a more engaging workshop. PureBrain helps you think through what that workshop should be about, remember what the last three taught you, and build a strategy for the next twelve. Strategy before execution, always.
Mentimeter has near-zero switching cost — participants join fresh each time with a code. PureBrain's switching cost is a feature: the deeper your AI knows you, the more valuable it becomes and the less you'd consider leaving. Intelligence is the moat.
500M+ users and 95% Fortune 500 penetration are not accidents. Mentimeter is genuinely excellent at what it does.
No app download for participants. Join with a code or QR scan from any device. This zero-friction participation model is the right answer for live event contexts and is genuinely ahead of most alternatives.
Anonymous participation encourages honest responses that named polling doesn't get. For corporate training and employee feedback, anonymity is not a limitation — it's the feature that makes the data valuable.
95% Fortune 500 penetration is a remarkable stat. Mentimeter is the known quantity in enterprise presentation engagement — easy to expense, familiar to IT, trusted by procurement teams. That brand position is a real asset.
Word clouds, live poll results, quiz leaderboards — the real-time visualization that turns raw responses into compelling shared experiences during presentations. This immediate feedback loop is genuinely effective for group learning.
Profitable since 2016. $69M raised across rounds. Revenue growing fast. For a Swedish startup serving 500M users, the financial discipline is remarkable and reflects a product that people actually pay for.
Polls, quizzes, word clouds, Q&A with upvoting, open-ended with AI clustering, surveys — 13+ question types cover most presentation engagement scenarios. The variety is meaningful for facilitators with different session structures.
Use Mentimeter when you need live audience engagement during a presentation. Use PureBrain for everything that happens between presentations — the thinking, the strategy, the growth, and the AI that knows you well enough to make it all smarter.