What is second screen behavior?

Second screen behavior is when viewers use a phone or tablet while watching TV or streaming. For Gen Z and Millennials, it’s now a natural extension of the viewing experience.

How common is second screen use among Gen Z and Millennials?

Very common. 85–89% of Gen Z use a mobile device while watching TV, and over 76% of Gen Z and Millennials say they often or always browse the internet on a second device. Smartphones are the dominant second screen, with ownership near universal.

What do people do on their second screens while watching?

Typical activities include checking social media and messages, looking up show-related info, and shopping links tied to what’s on screen.

Why does second screen behavior matter for streaming platforms?

It’s the norm, not the exception. Managed well, it drives deeper engagement, longer watch time, stronger retention, and new monetization opportunities.

How does Sound Dimension’s AiFi use the second screen?

AiFi turns phones into synchronized speakers, integrating them into the sound experience for social listening, surround sound across devices, and immersive group sessions.

How does AiFi improve engagement instead of causing distraction?

By keeping the phone inside the experience: the second screen becomes a sound extension of the story, reinforcing immersion rather than pulling viewers into competing apps.

Can second screen behavior help content go viral?

Yes. Second screens are where conversations happen. Shared listening and synchronized group moments are inherently social, boosting organic sharing and recommendations.

What monetization opportunities does AiFi unlock?

Premium synchronized live events, upsells for group sound experiences, sponsorships and branded events, plus audience intelligence on participation and session behavior.

How does AiFi help reduce churn?

AiFi makes the phone an extension of the platform, not an exit point. Synchronized sound across devices increases watch time, strengthens social bonds, and lowers churn.

How can I see AiFi in action?

Book a demo with Sound Dimension to experience how AiFi transforms second screen behavior into deeper engagement, social amplification, and measurable revenue.

AiFi · Companion devices for the screen

The companion-device platform for streaming.

AiFi turns the phones already around the TV into synced companion devices. Accessibility, multiview sound, surround and shoppable moments, from one SDK that runs alongside your player. No new hardware, and your pipeline never changes.

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A TV in a living room with phones around it acting as synced companion devices

6+ granted patents Sub-10 ms device sync Live in the App Store & Play Store Integrated with TVU MediaMesh Publicly listed · Spotlight

The roadmap you already have, solved

On your roadmap

Accessibility

Clear dialogue for one, normal volume for the room. Works with hearing aids people already own, and it's a compliance answer US platforms keep asking for.

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Hot right now

Multiview

Multisound for multi-screen sports. Every screen and phone in the room shares one clean, synced audio bed, so a watch-along sounds like one event.

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Premium audio

Surround

The whole room becomes the sound system. The phones already around the TV turn into true surround, a premium reason to stay subscribed. No soundbar.

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New revenue

Scene Commerce

Monetize the frame. Fire a scene-timed offer to the connected phone at the moment it matters, without touching the stream. A new revenue line, no extra ad load.

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Also for music streaming

Turn solo listening into a shared moment

AiFi syncs the phones in a room into one sound system, so listening becomes something people do together, in person. Listen Together, plus Quiz, Drop and Blend, the social features that drive retention and word of mouth.

Explore AiFi for Music

For your engineering team

One SDK, alongside your player

AiFi runs alongside your player, not in front of it, so your streaming pipeline, DRM and CDN stay exactly as they are. Sub-10 ms sync across iOS, Android and web. Public framework docs and four live apps in the stores.

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See it live, or try it yourself in 30 seconds.

hello@sounddimension.se · sounddimension.se

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Stream smarter. Sound better.