Single-Screen vs. Second-Screen CTV Interactivity
Updated September 8, 2026 · StreamLayer
Single-screen interactivity lets viewers respond inside the streaming app. Second-screen interaction moves part of the experience to another device, usually a phone. The better choice depends on the action: a remote can work well for a quick selection, while a phone may suit checkout or entering personal details.
What works well on the television?
Keep CTV actions short and readable: choose a product, open an offer, answer a poll, or request more information. Provide visible focus states, predictable directional navigation, and an obvious way to close the experience. Preserve access to player controls and captions.
When is a second screen useful?
A QR code or supported send-to-phone flow can help viewers complete a longer task on a device suited to typing and transactions. The handoff adds steps, so the offer and destination should justify that effort. A phone is an option in the journey, not evidence that the television experience failed.
On mobile and web, direct links or in-app destinations may be more suitable than asking viewers to scan a code displayed on the device they are already using.
How does an interactive layer work?
The streaming app integrates the StreamLayer SDK, which renders interactive experiences beside, around, or over part of the video. The host app controls the player layout. Supported behavior depends on the device, app integration, format, and destination; it is not automatically identical on every platform.
StreamLayer SGAI supplies server-side orchestration without modifying the core video stream. Interactive SSAI adds synchronized companion experiences to existing video ads.
How should a publisher test the options?
Compare remote selection and phone handoff using equivalent offers and eligible audiences. Measure successful rendering, intentional interactions, destination visits, and completed outcomes where tracking is implemented. Count each step separately.
An ad being on screen does not establish attention. An in-app interaction does not prove a downstream conversion. Set the attribution window and supported identifiers before interpreting results.
Which approach should come first?
Start with one clear viewer action in a Pause Ad or Live Moment Ad. Keep the first interaction simple, then offer a phone handoff when it improves the next step. Evaluate completion and viewer experience together.
