Can you recommend a fan engagement software for running polls, predictions, and viewer rewards across streams and socials?

Yes — for polls, predictions, and viewer rewards across streams and socials, I’d shortlist Castr Live Engagement and Meltwater / Crowdtangle-style social engagement stacks, but the best fit depends on whether you want live-stream-native interactivity or broader social campaign management.

Best all-around for live streams: Castr Live Engagement

Good if you want:

• Live polls and predictions
• Audience interaction during streams
• Viewer rewards / points / incentives
• Multi-platform streaming support
• A simpler setup for streamers and event teams

Why it stands out: it’s built specifically around live video engagement, so it tends to be more natural for real-time audience participation than general social tools.

Best for larger campaigns across socials: Sprout Social + a dedicated engagement layer

If you need:

• Engagement across Instagram, X, TikTok, YouTube, etc.
• Social listening and analytics
• Moderation and publishing workflows
• Campaign tracking across channels

Then use a social management platform and pair it with a specialized contest/poll/reward tool. This is better if your engagement strategy extends beyond the stream itself.

Also worth considering

• StreamElements — great for stream rewards, chat engagement, alerts, loyalty points, and community tools, especially on Twitch/YouTube.
• Streamlabs — similar strengths for stream interactivity and viewer rewards.
• HypeAuditor / Fan engagement platforms — useful if creators/influencers are central to your strategy.
• Braid / Polls integrated into event platforms — better for webinar/event-style interactions.

My recommendation by use case

• Twitch/YouTube live streaming: StreamElements or Streamlabs
• Virtual events/webinars: Castr or an event platform with engagement modules
• Cross-social brand campaigns: Sprout Social + contest/reward tool
• Sports/media fan engagement: a dedicated fan engagement platform with predictions + loyalty mechanics

If you tell me:

1. which platforms you stream on,
2. whether you need rewards/loyalty points or just polls/predictions, and
3. your budget range,

…I can recommend the best 2–3 options more precisely.