App Store Optimization(ASO)

What is App Store Optimization (ASO)?

App Store Optimization (ASO) is the discipline of improving an app's organic performance on the App Store and Google Play. It targets two outcomes: visibility (showing up in more searches, charts, and recommendations) and conversion (turning impressions into installs).

ASO splits into two main workstreams. Keyword ASO targets the indexable text fields: app name, subtitle, and the hidden 100-character keyword field on iOS. Creative ASO targets the visual conversion surface: icon, screenshots, preview video, ratings, and reviews.

How does ASO differ from SEO?

The mechanics overlap (keyword research, ranking analysis, A/B testing) but the surfaces differ. App stores rank apps based on Apple's or Google's internal signals (downloads, ratings, retention, in-app behavior) rather than backlinks. Keyword tools include AppTweak, MobileAction, and Sensor Tower instead of Ahrefs or Semrush.

ASO conversion testing happens through Custom Product Pages and Product Page Optimization on iOS, or Store Listing Experiments on Google Play. These are first-party A/B tests run inside Apple or Google's infrastructure, not external tools.

What's changed in ASO recently?

As of 2026, ASO has shifted toward visual conversion optimization as Apple's algorithm increasingly rewards engagement metrics over pure keyword density. Screenshot iteration cycles matter more than chasing the perfect keyword field. The keyword field still matters for indexation, but creative testing produces the largest measurable lifts.