What is App Store Optimisation (ASO)?
App Store Optimisation — commonly known as ASO — is the process of improving the visibility and discoverability of a mobile application within app stores, primarily the Apple App Store and Google Play Store. Just as SEO (Search Engine Optimisation) improves a website's ranking on Google, ASO improves your app's ranking in app store search results.
With over 5 million apps competing for user attention across major app stores, ASO is no longer optional — it is a fundamental part of any mobile app growth strategy.
For a broader understanding of how SEO principles apply to digital products, read: What is SEO & Why It Matters for Your Business in 2026.
How the App Store Algorithm Works
Both the Apple App Store and Google Play use complex algorithms to decide which apps appear when users search for a term. While the exact formulas are proprietary, the key ranking factors are well understood:
- Keyword relevance — Does your app listing contain the terms users are searching for?
- Download velocity — How many people are downloading your app right now?
- Ratings & reviews — High average ratings and positive, recent reviews boost rankings
- Engagement metrics — How often do users open and use your app?
- Uninstall rate — High uninstall rates are a negative signal
- Conversion rate — What percentage of people who view your listing actually download the app?
Keyword Research for ASO
Keyword research is the foundation of a successful ASO strategy. Unlike SEO, where you can target hundreds of keywords through multiple pages, your app store listing is a single page — every word counts.
How to Find the Right Keywords
- Start with your core function — what does your app do? That verb is your seed keyword
- Use ASO tools like AppFollow, AppTweak, Sensor Tower, or MobileAction to find high-volume, low-competition keywords
- Study the keywords used by your top competitors — analyse their titles, subtitles, and descriptions
- Look at user reviews of competing apps — they reveal the language your actual target users use
- Include long-tail keywords (3-4 word phrases) — they have lower competition & higher intent
Keyword Placement Matters
- App title — Keywords here carry the most ranking weight. Include your primary keyword naturally in the title
- Subtitle (iOS) — Include secondary keywords here
- Keyword field (iOS) — 100 characters of keyword data invisible to users but indexed by Apple
- Short description (Android) — First 80 characters displayed in search results; include primary keyword
- Long description (Android) — Google indexes this; use keywords naturally throughout (do not stuff)
Optimising Your App Title & Subtitle
Your app title is the most important piece of text in your entire listing. It must be:
- Memorable — Users should remember it after a quick glance
- Keyword-rich — Include your primary keyword without making it feel spammy
- Clear about function — Users should immediately understand what your app does
- Within character limits — 30 characters for iOS, 50 characters for Google Play
Example: Instead of just "FlowTrack", use "FlowTrack - Expense Tracker" to combine branding with keyword targeting.
Creating a High-Converting App Store Listing
App Icon Design
Your icon is the single most visible element in search results. A well-designed icon can increase conversion rates by 20% or more. It should be simple, distinctive, and instantly recognisable at small sizes. Avoid text in icons — it becomes illegible at small sizes.
Screenshots & Preview Videos
Screenshots are the most-viewed part of any app listing. Best practices:
- Use the first 2 screenshots to communicate the single biggest benefit of your app
- Add compelling captions (text overlays) to each screenshot explaining the benefit shown
- Show real app UI — do not use generic stock imagery
- Create a preview video (30 seconds) — listings with videos have significantly higher conversion rates on both platforms
App Description Optimisation
- Lead with your strongest value proposition in the first two lines (this is what users see before tapping "More")
- Use short paragraphs & bullet points for scanability
- Include a clear call to action (Download now / Try it free / Join 50,000+ users)
- Incorporate keywords naturally — do not repeat the same keyword excessively
The same technical discipline that goes into web SEO applies here. Read our Technical SEO Checklist for Developers to understand foundational optimisation thinking.
Ratings & Reviews Strategy
Your app's average rating is prominently displayed in search results and has a massive impact on both conversion rate and algorithmic ranking. Aim for a minimum of 4.2 stars on both platforms.
How to Get More Positive Reviews
- Use in-app review prompts — Ask users for a rating after a positive in-app event (completed purchase, achieved goal, finished session)
- Use Apple's SKStoreReviewRequest API or Google's In-App Review API for native prompts
- Respond to negative reviews promptly and professionally — this signals quality to both users & algorithms
- Fix reported bugs quickly & update your response when done
- Never incentivise reviews — this violates both Apple & Google's policies and can get your app removed
Localisation: Unlocking International Markets
One of the most under-utilised ASO strategies is localisation. Translating your app store listing into multiple languages can dramatically expand your potential audience without building new features.
Localise at minimum: the app title, description, screenshots (with localised captions), and preview video for each target market. A/B test localised listings using Google Play Experiments or third-party tools to measure impact before committing fully.
Monitoring & Iterating Your ASO Strategy
ASO is not a one-time exercise — it is an ongoing process of testing, measuring, and refining. Track these metrics regularly:
- Keyword rankings — Are you moving up for your target terms?
- Impression-to-download conversion rate
- Organic download volume vs. paid installs
- Review velocity & average rating trends
Test one element at a time (icon, screenshots, title) to accurately attribute changes in conversion rate to specific optimisations.
Conclusion
App Store Optimisation is the most cost-effective growth channel available to mobile app businesses. Every improvement to your listing works 24 hours a day, 7 days a week, driving organic downloads without recurring ad spend. Invest in ASO from day one and treat it as an ongoing discipline rather than a launch task.
If you need professional support with mobile app development or ASO strategy in India, Net Soft Solutions has the expertise to help you build, launch, and grow your app successfully.