How App Store Search Ranking Works (and What You Can Influence)

Quick answer: Apple says App Store search results are based on text relevance, meaning matches for your app name, subtitle, keywords and primary category, and on user behavior such as downloads, ratings and reviews. Apple does not publish the weights. You control relevance through your metadata, and you influence behavior through what people see in search results, your ratings and the quality of your app.

Much of what you read about the "App Store algorithm" is inference. Separating Apple's statements from practitioner observations keeps you from optimizing for myths.

If you are new to the topic, App Store Optimization (ASO): The Complete Guide puts these factors into a full workflow.

Text relevance decides which queries you are eligible to appear for at all. If a word is not in an indexed field, you are unlikely to rank for searches built around it.

How words combine

Practitioners consistently observe that the App Store can combine words from different fields into a phrase. If your app name is "YourApp: Photo Editor" and your keywords field contains collage,filter,retouch, you can become eligible for "photo collage" or "photo filter" without writing those phrases anywhere. That is why the usual advice is to avoid repeating words across fields and to spend the keywords field on new terms. See App Store Keywords Field: 100 Characters Best Practices for the formatting rules.

Relevance has to be real

App Store Review Guideline 2.3.7 asks you to assign keywords that accurately describe your app and not to pack metadata with trademarked terms, popular app names or irrelevant phrases. Apple's search guidance adds that improper keyword use is a common reason for rejection, and that choosing irrelevant categories is grounds for rejection too. Beyond the review risk, irrelevant keywords rarely hold rankings: people who search them do not tap or install, which feeds back into the behavior signals below.

Apple names downloads and the number and quality of ratings and reviews as factors. In practice, behavior from search itself appears to matter a lot: when people search a term and choose your app, that is evidence your app is a good result for it.

What people see before they choose is limited. In App Store search results, your listing shows your icon, app name, subtitle and rating, plus up to three screenshots or app previews depending on the platform and image orientation: on iPhone, typically three portrait images or one landscape image. Everything else on your product page is one tap away, and many people never make that tap.

That makes your search result card a ranking lever:

• The icon has to stand out among the other results on the same screen.
• The subtitle has to confirm, in a few words, that your app solves the query.
• The first screenshot has to deliver one clear message at thumbnail size. Your First App Store Screenshot covers how.
• The rating is shown next to everything else, so a low average costs you taps before anyone reads a review.

For how Apple measures the funnel from impression to install, see App Store Conversion Rate: Benchmarks and How to Improve It.

Your main app listing is not the only thing that can show up for a query.

1. Promoted in-app purchases. Apple lets you promote in-app purchases on your product page, and promoted purchases can appear in search results with their own name and image.
2. In-app events. Events such as challenges, premieres or live sessions can appear in search results next to your app. According to Apple, people who have downloaded your app before see the event card, while people who never have see your screenshots or app previews instead.
3. Custom product pages with keywords. You can assign keywords to a custom product page so it appears in search results for those keywords instead of your default page. Apple asks that the keywords match the page's intent and that each keyword combination belongs to only one page.
4. Apple Ads. Ads appear at the top of results and are labeled as ads. They do not buy an organic position, though installs from ads are still installs. See Apple Ads and ASO.

Google Play uses a different model, so do not copy your iOS strategy one to one.

• No keywords field. Google Play reads your app name, short description and full description, so the description matters for search there.
• Quality signals. Google says that if your app exceeds an Android vitals bad behavior threshold, such as the user-perceived crash or ANR rate, Play may reduce its visibility and may show a warning on your store listing.
• Ratings and engagement matter on both stores, and both stores display ratings next to search results.
• Listing edits are faster. You can update your Google Play listing without a new app release, while App Store metadata changes ride along with a new version.

A fuller comparison is in Google Play ASO: How Ranking Differs from the App Store.

1. Put your single most important phrase in the app name, next to your brand, within 30 characters.
2. Use the subtitle for a benefit plus secondary keywords people actually search.
3. Fill the keywords field with comma-separated terms and no spaces after commas. Apple advises against repeating words from your name, subtitle or category, and treats plurals of words you already use as duplicates.
4. Check relevance honestly. Remove terms where your app would disappoint the searcher.
5. Optimize the search result card: icon contrast, a clear subtitle and three strong opening screenshots.
6. Earn genuine ratings with the system review prompt at a success moment.
7. Choose relevant primary and secondary categories, since Apple indexes both.
8. Localize metadata for markets where you see impressions, which gives you new keyword space.
9. Track changes one release at a time in App Store Connect Analytics, filtering by source type. Apple notes that Apple Ads performance shows up there too, so separate paid from organic when you compare.