Cross-Device Frequency Capping: The Hidden Budget Drain

The Overexposure Problem

A typical Indian household has 3-4 connected devices: a smart TV, two smartphones, and a tablet or laptop. When an advertiser runs a campaign across OTT, mobile, and web, each platform manages frequency independently.

The result: a household that should see your ad 5 times might see it 15 times — once across each device, on each platform, with no cross-device coordination.

The Cost of Overexposure

Our analysis across 200+ campaigns shows:

• 17% of total ad spend goes to overexposed households (>2× intended frequency)
• Brand perception scores drop after the 7th exposure in a 7-day window
• Cost per incremental reach increases 340% beyond the optimal frequency cap

Why Platforms Can't Solve This Alone

Each platform operates its own identity graph:

• Hotstar knows your Hotstar login
• JioCinema knows your Jio number
• YouTube knows your Google account

None of them know all three are the same household. And none of them have an incentive to tell you that you're overdelivering across their competitors' platforms.

How Cross-Device Frequency Intelligence Works

AdProof builds a deterministic + probabilistic household graph by combining:

1. IP clustering — Devices sharing a home IP within a time window
2. Publisher first-party signals — Hashed login data shared under privacy-safe agreements
3. Temporal correlation — Usage patterns that indicate co-located devices
4. CTV-to-mobile bridging — Linking smart TV IPs to mobile devices on the same network

This graph enables true household-level frequency measurement across all platforms and devices.

Practical Steps

1. Measure first — You can't manage what you can't measure. Start by understanding your current cross-device frequency distribution.
2. Set household-level caps — Move from per-device to per-household frequency management.
3. Allocate by incremental reach — Shift budget from overexposed sources to underexposed ones.
4. Monitor continuously — Frequency patterns change as campaigns scale and new sources are added.

Cross-device frequency capping isn't a nice-to-have — it's one of the fastest ways to improve media efficiency without changing your creative, targeting, or budget.