App store optimization, or ASO, is the process of improving how an app ranks and converts inside the App Store and Google Play, using elements like title, keywords, screenshots, and ratings. It matters after launch because most app discovery still happens through in-store search and browsing, not outside advertising. An app with no ASO strategy usually plateaus within weeks of release, regardless of how well it was built.
What Does App Store Optimization Actually Cover?
ASO covers everything that affects whether a person finds an app and then decides to download it. That splits into two separate jobs: visibility (getting the app to show up for the right searches) and conversion (getting the person who sees the listing to actually tap install).
Visibility factors:
App title and subtitle (both stores weigh these heavily for keyword matching)
Keyword field on iOS, or repeated terms in the description on Google Play
Category selection and tags
Update frequency and app freshness signals
Conversion factors:
App icon
Screenshots and preview video
Short description and long description
Star rating and review volume
A common mistake is treating ASO as a one-time setup task. Both Apple and Google run algorithms that reward apps showing consistent engagement, retention, and updates, so ASO works more like ongoing maintenance than a launch checklist.
How Is ASO Different on the App Store vs. Google Play?
The two stores index and rank apps differently, so a strategy built for one does not transfer directly to the other. Apple uses a dedicated keyword field that is invisible to users, while Google Play indexes the full visible text of the title and description. This single difference changes how metadata should be written for each platform.
Factor | Apple App Store | Google Play |
Keyword input | Hidden 100-character keyword field | No hidden field; keywords repeated naturally in the description |
Metadata weight | Title and subtitle carry the most ranking weight | Title, short description, and long description are all indexed |
A/B testing | Product Page Optimization tests icons, screenshots, and previews | Store listing experiments also test short and long descriptions |
Update signal | Less emphasis on update frequency | Rewards apps updated regularly as a freshness signal |
Review influence | Ratings and reviews affect conversion, not the core ranking algorithm | Ratings, reviews, and engagement feed directly into ranking |
Apple's own developer documentation frames its native testing tool as a way to compare different icons, screenshots, and preview videos against the current listing to see which version drives more engagement (source: developer.apple.com). Google Play, by contrast, treats descriptions themselves as rankable, indexable text rather than a separate testing layer.
What Are the Most Important ASO Ranking Factors?
The factors that move the needle most are keyword relevance in the title, conversion rate from listing views to downloads, and post-install engagement, since both stores use downstream behavior to judge listing quality. A well-optimized title with a poor screenshot set will still underperform, because visibility without conversion just wastes the traffic.
Title and keyword relevance - the single highest-weighted metadata field on both stores
Conversion rate - the percentage of listing viewers who tap install
Ratings and review velocity - both stores treat consistent positive reviews as a quality signal
Retention and engagement - how long users keep the app and how often they return
Update cadence - regularly maintained apps are favored over stagnant ones
How Do You Start an ASO Strategy After Launch?
Start with keyword research specific to each store, then rebuild the title, subtitle, and description around the highest-value terms before touching visuals. From there, move to conversion assets, since a keyword-perfect listing still fails if the screenshots don't communicate the app's value in the first three seconds.
A practical first-90-days sequence looks like this:
Weeks 1 to 2: Keyword research per store, competitor listing audit, category confirmation
Weeks 3 to 4: Rewrite title, subtitle, and description around primary and secondary keywords
Weeks 5 to 8: Redesign screenshots and icon, then launch a Product Page Optimization or store listing experiment test
Weeks 9 to 12: Review early ranking movement, adjust based on actual search term performance, and start a review-generation prompt inside the app
Should You Run ASO In-House or Bring in Outside Help?
ASO can be run in-house if someone on the team has the time to track rankings and run tests consistently, but most small teams underinvest in it because it competes with product work for attention. The tradeoff is speed: an outside team with existing ASO workflows can usually get through the research and initial optimization phase faster than a founder learning it from scratch while also running the business.
In practice, the apps that improve fastest after launch are the ones where someone owns ASO as a recurring task, not a side project picked up between sprints. Coded Pulse's mobile app development team builds ASO planning into post-launch support rather than treating it as a separate add-on, since an app's technical build and its store listing perform best when they're planned together.
Getting a mobile app built is only half the work. If your app is approaching launch or already live and not getting found in search, get a quote from Coded Pulse's mobile app development team to plan the build and the store listing together.
