What is an organic install?

Organic is a residual, not a source

This is the single most misunderstood thing about the metric. Organic is not a channel that delivers users; it is the bucket everything unattributed falls into.

That bucket contains genuine word of mouth, app store discovery, press, and a substantial amount of paid influence whose attribution failed — cross-device journeys, unclicked exposure, expired windows, and increasingly recommendations inside AI assistants that the user acted on without clicking.

Treating it as a source leads directly to the wrong conclusion: that organic is free.

The organic uplift effect

Paid advertising drives organic installs. A user sees an ad, does not click, later searches the app store by name and installs. The paid exposure caused the install; the attribution records it as organic.

This is well documented and routinely ignored. It means paid campaigns are systematically undercredited, and it means organic volume is partly a function of paid spend rather than independent of it.

The instrument that separates them is a holdout — see incrementality. Pausing paid spend in a market and watching what organic does is a crude version of the same test, and it frequently surprises people.

Why organic is growing

• Identifier loss means more paid journeys cannot be matched.
• Cross-device journeys are largely unobservable.
• AI assistant influence typically produces no referrer at all.
• Privacy-preserving frameworks report in aggregate rather than per install.
• A rising organic share is therefore as likely to indicate degraded measurement as improved word of mouth, and the two require opposite responses.