--- title: App Store Optimization (ASO) — definition | RGM® url: https://realgrowthmatters.com/glossary/app-store-optimization/ updated: 2026-06-10 source_html: https://realgrowthmatters.com/glossary/app-store-optimization/ --- # App Store Optimization (ASO) app store op·ti·mi·za·tion/æp stɔɹ ɑptɪmɪˈzeɪʃən/noun Two search engines decide your app's fate — this is how you rank in them. Term : App Store Optimization (ASO) Arenas : Apple App Store, Google Play Twin halves : Search visibility + listing conversion Modern layer : Custom product pages, paid (Apple Search Ads) interplay ## Forms & parts of speech ASO · acronym The store-ranking discipline. "The install dip is an **ASO** problem — we lost the head keyword to a rival's update." ## Definition in plain terms App store optimization is SEO for the two stores that gate mobile distribution: improving an app's visibility in store search and browse (keywords, rankings, features) and its CONVERSION once seen (icon, screenshots, preview video, ratings). Most app installs start with a store search, which makes ASO the organic backbone of mobile growth. ## The mechanics The two stores index differently — Apple weighs the app name, subtitle, and a hidden keyword field; Google Play reads the full description like a search engine — so keyword strategy is store-specific. Visibility levers: keyword coverage and rank, ratings velocity and average (a ranking factor AND the conversion gate — the difference between 4.7 and 3.9 is the install), download velocity, and retention signals the stores increasingly reward. Conversion levers: the screenshot story (first two earn the decision), preview video, and A/B testing through the stores' native experiment tools. The paid interplay completes it: Apple Search Ads data feeds organic keyword strategy, and strong ASO lowers every paid install's price. ## When it matters ASO matters for any business whose product lives in the stores — it's not a launch task but a standing discipline (rankings shift with every competitor update and OS change). It matters most at the margins that compound: a rank-three-to-one move on a head keyword can double organic installs, and a rating recovered from 3.9 to 4.5 changes every channel's conversion. For mobile-first companies, ASO holds the position SEO holds for web businesses: the unpaid foundation everything paid stands on. **Worked example.** A fitness app plateaus on paid installs while its store listing sleeps. The ASO program: keyword research from Apple Search Ads query data rebuilds the name/subtitle/keyword field; screenshots redesign around outcomes (the transformation story in frames one and two); an in-app rating prompt fires after workout-streak moments (rating climbs 4.1 → 4.6); store A/B tests settle the icon debate with data. Organic installs rise 70% in a quarter — and paid CAC falls 20% on the same spend, because every ad now lands on a listing that converts. The store was the funnel all along. **Failure modes to watch.** Treating ASO as a launch checkbox instead of a standing discipline; stuffing keywords where the algorithm reads sentences (Play) or ignoring the hidden field (Apple); begging for ratings at random moments; and optimizing visibility while screenshots lose the conversion. ## Synonyms & antonyms ### Synonyms ASOapp store optimization ### Antonyms SEO (the web sibling)paid user acquisition (the other lever) ## Origin & history Coined by analogy to SEO in the App Store's first years — the term circulated in mobile-developer writing from around 2009 and standardized by 2012 as store search became the dominant install source and the practice professionalized (dedicated ASO tools launching in the same wave). Etymology: [source](https://en.wikipedia.org/wiki/App_store_optimization). ## Usage trends Search interest for this term over the last five years: [View interest-over-time on Google Trends →](https://trends.google.com/trends/explore?q=app%20store%20optimization&date=today%205-y) ## Common questions What is app store optimization? : Improving an app's store-search visibility and listing conversion — keywords, creative, and ratings working together. How do Apple and Google Play ASO differ? : Apple indexes the name, subtitle, and a hidden keyword field; Google Play reads the full description — keyword strategy is store-specific. What moves ASO most? : Keyword placement, ratings average and velocity, screenshot conversion, and the retention signals stores increasingly reward. ## Related tools & calculators - tool[Funnel drop-off analyzer](/tools/funnel-drop-off-analyzer/) ## Resources & people to follow - referenceApple — App Store search and product page docs - referenceGoogle Play — store listing and experiments docs - referenceAppsFlyer/Sensor Tower-class research — install-source data Curated, non-competitor resources verified per term. ## Related training - module[Growth marketing foundations](/training/growth-marketing-foundations/) ## Disciplines Areas of marketing where app store optimization (aso) is a core concern: [Channels](/training/growth-marketing-foundations/)[Brand strategy](/training/growth-marketing-foundations/) ## Read next ## Related terms [SEO](/glossary/seo/)[Keyword research](/glossary/keyword-research/)[Conversion rate](/glossary/conversion-rate/)[Push notifications](/glossary/push-notifications/)[Retention](/glossary/retention/) ## Sources 1. trends[Google Trends — "app store optimization"](https://trends.google.com/trends/explore?q=app%20store%20optimization&date=today%205-y)