ON24 vs Rozie Synopsis: Which Platform Is Built for Your Event?
ON24 and Rozie Synopsis operate at different layers of the event ecosystem.
ON24 is built for webinars and virtual events: hosting digital programmes, capturing online attendee engagement, and integrating with marketing automation. Rozie Synopsis is built for in-person conferences: capturing live sessions via AV feed, organising them into a branded Knowledge Hub, running exhibitor lead workflows, and delivering analytics that prove ROI long after the event ends.
Rozie Synopsis is trusted by
Which Tool Does Your Event Need?
The right choice depends on whether your event is primarily digital or in-person.
ON24 is a digital experience and webinar platform designed to host, manage, and distribute virtual events and webinars.
Rozie Synopsis is designed to capture, structure, and extend conference session knowledge into a searchable, post-event intelligence layer.
This guide explains how their roles differ and when each platform makes sense.
Quick Verdict
- Multi-day conferences and multi-track events
- Post-event Knowledge Hubs
- Cross-session summaries and theme analysis
- Searchable session intelligence
- Hosting virtual events and webinars
- Managing digital attendee engagement
- Running gated content experiences
ON24 runs the event experience online.
Rozie Synopsis structures and extends the knowledge created during the event.
What Is ON24?
ON24 is a digital engagement platform used to host webinars, virtual conferences, and online content experiences.
- Event hosting and streaming
- Registration and attendee management
- Interactive engagement features (polls, Q&A, CTAs)
- Analytics related to attendee behavior
- Content repurposing into on-demand experiences
ON24 is commonly used by marketing teams to run scalable virtual programs and demand-generation campaigns.
- No structured session summaries
- Limited transcription depth (focused on captions/recordings)
- No multi-speaker panel breakdown
- No event-wide knowledge extraction
- No searchable conversation intelligence across sessions
What Is Rozie Synopsis?
Rozie Synopsis is a live-event intelligence platform built for conferences, summits, and trade shows.
It captures session content (live or post-event ingestion), generates structured summaries and insights, and organises everything into a branded, searchable Knowledge Hub that supports long-term engagement and measurable post-event value .
- Live transcription of sessions with speaker attribution and session metadata.
- Support for 75+ languages, streamed in real time to venue screens, attendee mobiles, and the event app simultaneously.
- Post-event ingestion for teams that need to process recordings after the event.
- Requires no special hardware or sound booths. Rozie Synopsis connects directly to the existing event AV feed with no additional equipment needed.
- Provides full session transcripts and translated transcripts, live and post-event.
- Structured session summaries, key takeaways, recommendations, and visual insights generated automatically after each session.
- Topic clustering and trend analysis across sessions, tracks, and full event days.
- Automated branded session debriefs displayed immediately after each session closes.
- Auto-created, access-controlled Knowledge Hub with branded reports and audio summaries.
- Attendees, sponsors, and stakeholders can search by topic, speaker, session, or open question year-round.
- AI Knowledge Advisor for conversational knowledge retrieval across all event content.
- A dedicated workspace for event and marketing teams with all session data pre-loaded.
- Convert sessions, tracks, and full event days into newsletters, blogs, infographics, and social content within minutes.
- Deep engagement metrics across sessions: who engaged, with what, and for how long.
- Cross-event analytics to identify content patterns and sponsor performance across your event portfolio.
- Leads generated through Knowledge Hub sponsor placements.
Rozie Synopsis also provides an Exhibitor Lead Activation Experience
Built to help organizers demonstrate sponsor ROI and enable exhibitors to maximize returns from every event.
- Exhibitors capture leads through multiple methods: badge scan, QR code, business card, or manual entry.
- Exhibitors can also capture voice conversations with attendee consent, so every meaningful booth interaction is recorded with full context and not just a badge scan.
- AI converts those inputs into structured summaries that surface buyer intent, objections, and recommended next steps instantly.
- Data flows directly into the exhibitor's CRM in real time, with personalized email drafts ready to enable faster and more contextual follow-up.
- Organisers gain live analytics on conversations per exhibitor, trending topics, booth activity, and follow-up status, making renewal and upsell conversations far easier to support with hard data.
These workflows are distinct from webinar engagement platforms.
ON24 vs Rozie Synopsis Through a Workflow Lens
- Create event or webinar
- Build registration pages
- Host live or on-demand sessions
- Enable engagement features (polls, Q&A)
- Capture attendee behavior data
The workflow focuses on digital event delivery and marketing engagement.
- Capture sessions live via AV connection, with live transcription, translation, and speaker attribution streamed to venue screens, attendee mobiles, and event apps across 75+ languages.
- Generate structured summaries, key takeaways, visual insights, trends, and recommendations across tracks automatically after each session.
- Organise everything into a branded, access-controlled Knowledge Hub with an AI Knowledge Advisor for year-round attendee and sponsor engagement.
- Give event and marketing teams all session data pre-loaded to repurpose into blogs, newsletters, social posts, and other formats within minutes.
- Provide detailed engagement and cross-event analytics so organizers and sponsors can see how content is searched, accessed, and reused over time.
- Extend the same platform to the show floor with workflow automation from booth conversation and lead capture through CRM integration and personalized follow-up.
- Give organizers live analytics on conversations per exhibitor, trending topics, booth activity, and follow-up status to support renewal discussions.
Best suited for extending the value of session content beyond event days.
Feature Comparison: ON24 vs Rozie Synopsis
Primary Focus
Virtual event hosting
Registration & gated access
Live engagement tools (polls, Q&A)
Multi-track in-person event capture
Cross-session theme clustering
Event-wide search & AI Q&A
Post-event engagement analytics
Webinar & digital event hosting
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Event experience
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customers speak
"Love the product and so pleased with the output, now powered by Gemini! Getting near real time summaries of sessions from our events in user friendly interface that integrates with our event app Whova. Look forward to our continued partnership for future events."
"Synopsis for events has really been a game changer for us."
"This tool for real time extraction of speaker insights is really amazing! Totally recommend this for any future conference."
“The summary will be a good thing to share with the rest of the team so they can have the same feeling that we had for the last three days.”
“The after‑event material will be really handy for memory recall—remembering which partners we wanted to speak to and what they talked about in their sessions.”
“At the end of it, being able to get everything put together in almost like an executive summary – that, to me, was gold.”
"Synopsis for events has really helped us with what we can offer delegates from a pre and post-event perspective. Delegates these days need to be able to show quantifiable takeaways from what they've gathered."
"The fact that it could get some complex insights into one or two lines impressed me."
“Rozie Synopsis I would love to see at every event...Outstanding technology, great product.”
“When I look at the synopsis output, it was really summarizing the whole discussion into a very brief one, very accurate to the point and picking up the right context.”
Frequently Asked Questions
ON24 hosts webinars and virtual events, capturing digital attendee engagement and integrating with CRM and marketing automation. Rozie Synopsis captures in-person conference sessions via AV feed, structures them into summaries and insights, and organises everything into a branded Knowledge Hub. They operate in different environments and solve different problems.
Rozie Synopsis. It generates structured session summaries and topic clustering automatically, organised into a branded Knowledge Hub that persists year-round. Attendees search by session, speaker, or topic. ON24 repurposes webinar recordings into on-demand content, which suits digital programmes but does not produce a structured knowledge layer from in-person sessions.
Rozie Synopsis. It gives organisers and sponsors cross-event analytics showing which sessions drove the most engagement and how content was accessed in the post-event Knowledge Hub over time. ON24 provides webinar-level analytics for digital attendees. For in-person conference organisers demonstrating ROI to sponsors, Rozie Synopsis is the purpose-built choice. Talk to our team to see what sponsor reporting looks like.
Yes. Rozie Synopsis includes a dedicated Exhibitor Lead Activation Experience with structured booth conversation capture, AI-generated summaries, and CRM-ready lead outputs. ON24 has no in-person exhibitor floor workflow. Talk to our team about the Exhibitor Lead Activation Experience.
Yes. Rozie Synopsis gives each sponsor session-level analytics from the post-event Knowledge Hub and structured lead outputs from booth conversations. ON24 provides digital engagement analytics from webinar audiences but has no in-person sponsor or exhibitor intelligence layer.
Ready to run your next event on Rozie Synopsis?
