Cross-promotion networks beyond your own game portfolio

Cross-promoting between your own games is one of the cleanest wins available to a studio with a portfolio — no external cost per install, no rising auction price, just a share of your existing traffic redirected to your other titles. It's also a win that requires having more than one live game with meaningful traffic to redirect, which rules it out for most studios running a single title. Exchange networks are the version of that same math available to everyone else.

How an exchange network actually works

An exchange network integrates into the same ad inventory you'd otherwise sell through a standard mediation setup — the slots where a rewarded video or an interstitial would normally run. Instead of an external advertiser buying that slot, the network swaps impressions with non-competing apps that share a similar target audience, crediting installs back to you through impression credits, a reciprocal placement in the partner's own inventory, or in some setups a cash rate on top of the swap. No party is paying a rising external cost-per-install the way they would through a standard user-acquisition auction. Everyone is trading inventory they already own.

Why it's cheaper even though real money doesn't always change hands

The players seeing the promoted app are already inside a live session of your game, already accustomed to seeing ad content in that slot, and the marginal cost of showing them a different creative instead of your usual mediation fill is close to zero. But "free" is the wrong way to frame it, and treating it that way leads studios to undervalue what they're actually giving up.

The real cost is opportunity cost: that ad slot could have shown a rewarded-video or interstitial ad paying your usual mediation rate instead of a cross-promotion swap. The correct comparison isn't "exchange network versus paid user acquisition" — it's "the value of the swap you're receiving versus the ad revenue you're forgoing to run it." A network that pays out in low-value impression credits from a partner with weak conversion is a worse deal than simply running your normal ad fill in that slot, even though nothing about it looks expensive on the surface.

Picking partners that don't cannibalize your own game

The instinct to swap with the highest-traffic partner available is usually wrong if that partner is a direct competitor for the same session time. Installing a competing game genuinely reduces how much time a player spends in yours — they're not additive audiences, they're substitutes fighting for the same hours in a day. The partners worth prioritizing are genre-adjacent but non-competing: an audience with real overlap in who they are and what kind of game they enjoy, but a game that isn't a substitute for the one they're currently playing.

This is the same discipline that makes cross-promotion between your own portfolio games work in the first place — you'd never cross-promote two of your own games that are fighting for the exact same session time either. An exchange network just extends that logic to partners outside your own catalog, which means the partner-selection discipline matters more here, not less, because you don't have the same visibility into a partner's retention numbers that you'd have into your own second title.

Negotiating a fair swap ratio

Not every impression is worth the same amount, and treating a swap as strictly one-for-one ignores that a network with meaningfully higher traffic than you is offering you a much smaller share of its own inventory in exchange for a much larger share of yours. The honest basis for a swap ratio is the effective ad value of each side's inventory — what each impression would otherwise have earned from paid demand — not raw impression counts. A studio entering a swap without checking that basis first can end up trading its best inventory for a partner's worst, and won't see it in any single metric until retention on the resulting installs comes in worse than expected.

What to measure before committing inventory

The comparison that actually matters is the effective value of the impression you're receiving through the swap against what that same slot earns from your normal paid ad demand — not against zero, and not against the sticker price of paid user acquisition, which is a different comparison entirely. Beyond the swap value itself, track the retention of the installs an exchange sends you specifically, separate from your other acquisition channels, because exchange-driven installs can skew toward lower intent than a targeted paid campaign that a player actively clicked through after seeing a specific ad built for that game.

A studio running this well treats an exchange network the same way it treats any other acquisition channel it's evaluating — with its own conversion, retention, and effective-cost numbers tracked separately, not folded into a single "user acquisition" line that hides which channels are actually pulling their weight. gamemantra's demo walks through how per-channel cohort tracking separates exactly this kind of blended acquisition data into numbers a studio can actually act on.