App store optimization (ASO) is the practice of improving an app’s store listing so it ranks higher in App Store and Google Play search and turns more page visitors into installs. It matters because search is the main discovery route: Apple says 70% of App Store visitors use search to discover apps and almost 65% of downloads happen directly after a search.
Key Takeaways
- ASO covers two jobs: getting found in store search (visibility) and convincing visitors to install (conversion).
- As of 6 October 2026, the app-tracking service 42matters counted about 2.70 million apps on the Apple App Store and 2.60 million on Google Play, so an unoptimized listing is easy to miss.
- The app name, subtitle (Apple), short description (Google Play) and Apple’s 100-byte keyword field carry the most search weight.
- Ratings, reviews and app quality also count: Google says apps that exceed its Android vitals bad-behavior thresholds may get reduced visibility on Google Play.
- Both stores offer free A/B testing tools, so listing changes can be measured instead of guessed.
Ask yourself this particular question, how do people discover new apps which are published in the app store? Older industry surveys (the original source was not named when this article was first published) suggested that about 51% of people discover apps through recommendations from people they trust, such as friends, family, colleagues and business partners. Those figures are several years old, so treat them as indicative rather than current.
The same older figures put store browsing at about 48% of discovery, with roughly 34% of that group downloading apps the store recommended based on their previous downloads. A more current, attributed figure comes from Apple: as of October 2026, Apple’s advertising site states that 70% of App Store visitors use search to discover apps.
As of 6 October 2026, the app-tracking service 42matters counted 2,700,613 apps on the Apple App Store and 2,602,834 on Google Play, more than 5 million listings across the two leading stores. In such a market, it often becomes difficult for businesses to get their mobile app recognized. We all want to earn success in the mobile market, and the best possible option we have is mobile app store optimization.
What is Mobile App Store Optimization?
Mobile App Store Optimization or ASO is a strategy used to implement the best practices to rank a mobile app in a competitive market of the mobile app store. There are different app stores for different operating systems. The two main app stores are Apple’s App Store (for iPhone and iPad) and Google Play (for Android devices).
Just as SEO agencies (for example, one Toronto firm offering SEO Toronto services) rank websites by using a set of SEO practices on different search engines, an ASO specialist uses a different set of ASO practices to rank mobile apps on the app store search results and top chart rankings.
To succeed in the mobile space, building just a great app is no longer good enough. You need to make sure that your app gets discovered, downloaded, and used by the right people so they can drop in reviews.
Why is it important? Because customer reviews are what enables most mobile app developers to create experiences that are far better than those which do not get reviewed so frequently. Anything that follows the suggestions of their customers religiously and is constantly updating will remain successful.
Why has ASO become an Important Marketing Strategy for Business?
Store search is the most important discovery channel on Apple’s platform. Apple states that 70% of App Store visitors use search to discover apps and that almost 65% of downloads happen directly after a search (figures shown on Apple’s advertising site as of October 2026). The 67% figure in earlier versions of this article could not be traced to a source.
Just in case, if you haven’t optimized your mobile app on the right keywords, then you will eventually fail to appear in probable relevant searches performed by customers. As a result, the business misses potential customers who were actively searching for an app like it.
However, if you have spent time smartly every week optimizing the right keywords for your particular mobile app, then you can reap a whole lot more beneficial compared to others.
In this way, your organic downloads keep coming in, and you reap a good amount of profit every day.
Jacob Baadsgaard, founder and CEO of Disruptive Advertising, made a related point about mobile websites and local search in his Search Engine Land column “Local search: It’s all about mobile”:
“Optimizing for local search is important, but if you aren’t optimizing for mobile, you’re going to miss out on your most important source of local traffic.”
But what happens if in case your app store is not optimized and does not appear on relevant searches?
Well, you could simply lose hundreds, maybe thousands of potential customers every day. If you have mobile app ideas or if you are running a mobile app for your business and it is still not optimized on relevant keywords, then you are right now, and right this moment losing some good paying customers.
The Leading Benefits of Getting Your Mobile App Optimized for Different App Stores
In case, you are not opting in to see your newly built mobile application turn into a complete failure, and you are seeking to learn some more incredible benefits of getting your mobile app optimized then here you go.
1) You Get More Organic Installs (Invest Less Acquisition Cost)
One of the most remarkable things about optimizing your mobile app on the app store is that it will incredibly help increase your organic installs. When people are capable of searching your product in real-time through the app search options, then you will have to invest very little or absolutely no cost.
Once optimized on high ranking keywords, you will start seeing your search options appear in different search results, and your brand visibility will automatically get a well-deserving exposure.
Automatically, you will see an increase in your organic downloads while your acquisition cost will go down.
2) More Relevant Users will Start Seeing Your Mobile App Appear in Searches
When mobile apps are optimized on desired keywords, then they start appearing in relevant searches for the right people. In case, when you are not using the right keywords, then you will automatically start seeing the wrong people downloading and purchasing your app.
If your app doesn’t appear in the right category or your app description doesn’t explain well what your users will experience within the app, then you are simply reducing the chances of putting the app in front of the right audience.
All of these factors are important to pay attention to because they all contribute together to make your app appear in front of the right users.
3) Keyword Research Provides the Perfect Stability to Your Mobile App
There is no denying the fact that using the right marketing strategy will give the most optimum level exposure to your mobile app design.
However, if you are someone seeking to increase the overall app revenue and get some extra download by implementing strong organic practices, then a good ASO strategy in place can definitely give your mobile app the perfect stability it needs.
So, instead of investing all your marketing budget to create profitable avenues, it is important that you invest a significant amount in keyword research.
With the right keyword research, you can successfully rank your product on the desired app store.
App Store Optimization is an integral part of your entire app development strategy. While developing a mobile app is one thing, knowing which keywords and mobile app practices are the best for your business decides the success ratio of your business.
When was the last time you invested time in learning ASO? If you are creating a mobile app solution for your business, then now might just be the time.
4) App Store Optimization (ASO) is a Quick & Effective Way
When you create a mobile app, your utmost goal is to see yourself appear at the top. And that too in an extremely less amount of time, isn’t it? Besides, once your app is fully functional and ready to be uploaded, then there is no way you can back out. You got published, and now you can only move forward.
Therefore, it is increasingly important that you implement every other strategy which you have learned and start ranking your app on the right keywords. If you are already using keywords with low-difficulty, then check whether or not you have placed them correctly within the content.
Also, make sure that you record everything and make important reports on your searches all the time. Nowadays, everything is about data. If you have collected all the relevant information, then all you have to do is feed that information to the system and let the system predict the best possible solution for you. It’s why you hire data scientists.
Just as much as designing a wonderful app solution for your business is important, equally, it is also important that you are well-acknowledged on how to rank it on the different app stores. An aesthetically pleasing mobile app that is fully functional will only do business when it is successfully being accessed by different customers.
You can’t just sit and think, okay, my app is now published it will start generating profit for me anytime. You actually have to go out of the box and get it done yourself.
How Does App Store Optimization Work?
App store optimization works on two levels. The first is visibility: the store’s search algorithm reads the app’s text metadata to decide which searches the app can appear for. The second is conversion: once a listing appears, the icon, screenshots, preview videos, ratings and description decide whether a visitor installs the app. Improving either one raises installs; improving both compounds the effect.
App Store vs Google Play: Metadata Limits
The table below lists the main text fields and their limits, taken from Apple’s App Store product page and App Store Connect documentation and Google’s Play Console Help pages (as of October 2026).
| Field | Apple App Store | Google Play |
|---|---|---|
| App name / title | Up to 30 characters | Up to 30 characters |
| Subtitle / short description | Subtitle, up to 30 characters | Short description, up to 80 characters |
| Hidden keyword field | Up to 100 bytes, comma-separated | None; Google Play reads the visible text |
| Promotional text | Up to 170 characters; Apple says it does not affect search ranking | No equivalent field |
| Full description | Up to 4,000 characters | Up to 4,000 characters |
| Screenshots and video | Up to 10 screenshots and 3 app previews of up to 30 seconds each | Screenshots, feature graphic and optional video |
| A/B testing tool | Product page optimization: up to 3 treatments, up to 90 days | Store listing experiments: up to 2 variants per experiment |
What Are the Main ASO Ranking Factors?
App name and subtitle
The app name is the strongest text signal on both stores. A clear brand name plus a short descriptive phrase (for example, a habit tracker that adds “Habit Tracker” after its brand) tells both the algorithm and the reader what the app does. On the App Store, the 30-character subtitle adds a second line of searchable text.
Apple’s keyword field
Apple’s keyword field holds up to 100 bytes of comma-separated terms that are not shown to users. Apple’s guidance says the field should not include plurals of words already used, the names of categories, the word “app”, duplicate words, competitor app names, unauthorized trademarks or celebrity names, or irrelevant terms. Spending the limited space on distinct, relevant words is the main skill here.
Google Play descriptions
Google Play has no hidden keyword field, so the title, 80-character short description and 4,000-character full description carry the keywords. Google warns that repetitive or irrelevant use of keywords in the app name or description can create a poor user experience and can result in an app being suspended, so descriptions should be written for people first.
Ratings and reviews
Ratings influence both conversion and how trustworthy a listing looks. Apple lets developers prompt for a rating through its standard system prompt up to three times in a 365-day period, and developers can respond to any review in App Store Connect. When a developer responds, the reviewer is notified and can update the review. Apple also lets developers reset the summary rating when releasing a new version, though written reviews stay visible.
App quality and stability
On Google Play, technical quality is part of discoverability. According to Google’s Android vitals documentation, the overall bad-behavior thresholds are a 1.09% user-perceived crash rate and a 0.47% user-perceived ANR (app not responding) rate, and an app that exceeds a threshold may have its visibility reduced and a warning shown on its store listing.
Visual assets
Apple notes that the first one to three screenshots appear in search results when no app preview video is available. That makes the first screenshots part of the search result itself, so they should show the app’s main benefit clearly.
How to Do App Store Optimization: Step by Step
- Research keywords. List the words real users would type to find an app like yours, including features, problems solved and category terms. A guide to mobile search keyword research covers the basic method.
- Write the name and subtitle or short description. Put the most important keyword in the title where it reads naturally, and use the subtitle or short description for the next most important one.
- Fill Apple’s keyword field. Use single words separated by commas, without repeating words from the name or adding plurals. A word and character counter helps keep each field within its limit.
- Write the description for people. Open with what the app does and who it is for, then list key features. Keep keyword use natural.
- Design screenshots and previews. Lead with the main benefit, use short captions and make sure the first images work as a search-result preview.
- Localize. Both stores let listings be localized, so translating metadata and adapting screenshots for priority markets widens the searches an app can appear in.
- Test changes. Use Apple’s product page optimization or Google Play’s store listing experiments to compare icons, screenshots and (in Google Play localized experiments) descriptions before rolling them out.
- Monitor and repeat. Track impressions, conversion rate, ratings and, on Google Play, Android vitals. ASO is ongoing work, not a one-time setup.
Custom Product Pages
Apple lets developers publish up to 70 additional custom product pages, each with its own screenshots, promotional text and app previews. According to Apple, keywords can be assigned to a custom product page so that it appears in search results for those keywords instead of the default product page.
Common ASO Mistakes to Avoid
- Keyword stuffing: repeating terms in the title or description, which Google Play policy warns against.
- Wasting Apple’s keyword field: repeating words already in the name, adding plurals or using the word “app”.
- Using competitor or celebrity names: both are on Apple’s list of terms to keep out of the keyword field.
- Ignoring app quality: high crash or ANR rates can reduce visibility on Google Play regardless of metadata.
ASO and SEO: What Is the Difference?
App store optimization and search engine optimization share the same idea, matching content to what people search for, but they work in different places. SEO targets web search engines such as Google and Bing; ASO targets the App Store and Google Play and relies on store metadata, ratings, conversion and app quality. For the website side, see this overview of SEO practices for small businesses, and for a broader walkthrough of store tactics, this comprehensive guide to app store optimization.
ASO also starts before launch. Decisions made during the mobile app development process, such as naming, target audience and stability testing, all affect how well the finished app performs in store search.
Frequently Asked Questions
What is app store optimization in simple terms?
App store optimization is the process of improving an app’s store listing, including its name, keywords, description, screenshots and ratings, so that the app appears higher in App Store and Google Play search results and more visitors install it.
Why is app store optimization important?
App store optimization is important because most app discovery on Apple’s store happens through search. Apple states that 70% of App Store visitors use search to discover apps and that almost 65% of downloads happen directly after a search, so an app that does not rank for relevant searches misses most potential users.
How long does ASO take to show results?
There is no fixed timeline. Rankings shift as the store processes metadata changes and gathers install and engagement data. On the App Store, promotional text can be changed without an app update, and product page tests can run for up to 90 days.
Is ASO different for iOS and Android?
Yes. The Apple App Store has a hidden 100-byte keyword field and a 30-character subtitle, while Google Play has no keyword field and reads the title, 80-character short description and full description instead. Google Play also uses Android vitals stability data when deciding visibility.
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