How does Apple's App Store search algorithm work?

Apple's algorithm weighs two named relevance signals. Behavioral relevance covers what users do with search results, including taps, downloads, and post-install retention. Textual relevance measures how well your metadata semantically matches the user's query. Apple confirmed both signals in its March 2026 research paper Scaling Search Relevance, which described an A/B test using LLM-generated relevance labels to augment ranking.

Are Google Play's ranking factors the same as Apple's?

The signals overlap but the weights and surfaces differ. Both stores rank apps using on-metadata fields plus off-metadata behavioral signals. Google Play indexes more fields, including the full 4,000-character long description, and weighs Android Vitals (crash rate, ANR rate, startup time). Apple weighs the unique 100-character Keyword Field and the OCR-indexed text on screenshots, which Google Play does not index.

How often do App Store and Google Play rankings change?

Rankings update continuously. Both stores recalculate as new install, conversion, retention, and review data comes in. Top-100 charts visibly refresh several times per day. Only 40% of top-100 App Store apps stay in the top 100 for a full year, and fewer than 25% do on Google Play. Apps that optimize for the right factors hold position longer and recover from drops faster.

Do paid ads affect organic ranking?

Paid ads do not directly boost organic ranking. Apple and Google publicly state that paid placements are separate from organic ranking algorithms. Indirectly, the install velocity that paid campaigns generate feeds into the same behavioral signals organic ranking weighs. Apple Ads and Google App Campaigns can therefore lift organic ranking when they drive enough velocity to push install-per-day metrics above category baseline.

What changed in ASO ranking in 2026?

Three changes matter most. First, retention and conversion rate are now first-class ranking signals in both stores, alongside the older keyword and download metrics. Second, Apple began OCR-indexing screenshot caption text in June 2025, and custom product pages began ranking organically in July 2025. Third, Apple's March 2026 paid ad expansion compressed the organic visibility window, making every individual ranking factor more decisive.

Where can I find Apple's official documentation on ranking factors?

Apple does not publish full ranking weights, but the Search Ads documentation, the App Store Connect Help section on Search Results, and Apple's annual WWDC sessions on App Store search cover the inputs Apple weighs. Apple's March 2026 research paper Scaling Search Relevance: Augmenting App Store Ranking with LLM-Generated Judgments is the most explicit public Apple description of how the algorithm decides.

How long does it take to see ranking changes after updating metadata?

Most metadata changes show ranking impact within 4 to 8 weeks. Apple typically reindexes new metadata within hours of an app release. Google Play indexes faster but takes longer to stabilize ranking shifts. Conversion-rate changes from creative tests show up faster, usually within 2 to 4 weeks. App Title and App Name changes carry more risk and take longer to recover from if they go wrong.

Ivan Žgela

SEO and Lead Content Manager

Leads organic growth strategy across the SplitMetrics and App Radar brands. With 10+ years in SEO, content marketing and mobile app industry, he specializes in turning technical app growth topics into search-driven content that reaches mobile marketers, UA managers, and growth teams.