App Store Optimization (ASO)
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
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.
Synonyms & antonyms
Synonyms
Antonyms
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.
Usage trends
Search interest for this term over the last five years:
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
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
Disciplines
Areas of marketing where app store optimization (aso) is a core concern: