When I started running mobile growth, I treated the app stores like a vending machine. You put the app in, people find it, they download it. Then I watched two nearly identical apps get wildly different results, and I realized the store itself is a channel you can work on.
App Store Optimization, or ASO, is that work. It is how you help your app show up for the right searches and turn the people who land on your page into installs. Let me walk you through how it actually works, so you can start improving your listing this week.
What does ASO actually mean?
ASO stands for App Store Optimization. In plain terms, it is everything you do to help your app rank higher in the stores and convert more of the people who see it into downloads.
Think of it in two halves. The first is discoverability: making sure your app shows up when someone searches for what it does. The second is conversion: making sure the people who reach your page actually tap install.
Both matter, and they feed each other. Ranking higher gets more eyes on your page, and a page that converts well tells the store your app deserves those rankings. You cannot ignore one and win on the other.
What are the two halves of ASO?
The keyword side decides whether people find you at all. It covers the words in your title, subtitle, and description, and which searches you rank for. Get this right and you show up for terms real users type.
The conversion side decides whether finding you turns into a download. This is your product page, and these are the levers that move it:
- Icon: the first thing a person sees, and often the deciding one in a crowded search result.
- Screenshots: your real sales pitch. Most people judge the app here, so lead with the benefit, not a blank home screen.
- Preview video: a short clip that shows the app in motion and builds trust fast.
- Ratings and reviews: social proof that quietly drives more installs than almost anything else on the page.
Spend time on both halves. Plenty of apps rank well and still lose, because their page gives people no reason to commit.
How is store search different from Google search?
If you come from web SEO, this trips people up. Google reads long pages of content and links to decide what ranks. The app stores work with far less text and lean on behavior.
In the stores, queries are short. People type two or three words like photo editor or budget app, then download something within seconds. So the stores weigh signals like your title keywords, your install conversion rate, and how often people keep the app after installing.
Behavior is the quiet ranking factor. If your page converts searchers into installs and those users stick around, the store reads that as a good match and pushes you up. A pretty page that nobody downloads sends the opposite signal.
How do the App Store and Google Play differ for ASO?
They look similar, but the keyword mechanics are different, and that changes how you write your listing.
Apple gives you a dedicated, hidden keyword field, a 100 character list of comma separated terms that users never see. You do not repeat words across the title, subtitle, and that field, since Apple combines them. Stuffing the same keyword twice wastes space.
Google Play has no keyword field. Instead it does full-text indexing, reading your title, short description, and full description the way a search engine reads a web page. Here the words in your description carry real weight, so you place your main terms naturally a few times across the text.
The takeaway is simple. On the App Store, mine that keyword field carefully and never duplicate. On Google Play, write a clear, keyword-aware description that still reads like a human wrote it.
How do I do basic keyword research for an app?
You do not need expensive tools to start. Begin by listing the words a real person would type to find an app like yours. Then check them against what the stores already tell you.
Here is a simple first pass:
- Open the store search bar and type your core term. The autocomplete suggestions show you what people actually search.
- Look at your top competitors and note the words in their titles and subtitles.
- Read your own reviews. The language users use to describe your app is often the exact language they search with.
- Favor terms with clear intent and a bit less competition, rather than one giant generic word everyone fights over.
Then place those terms where they count: the title and subtitle on Apple plus the keyword field, and the title, short description, and full description on Google Play.
How do I A/B test my app store listing?
Guessing which icon or screenshots work is a trap. Both stores let you test, so let the data decide.
On Apple you use Product Page Optimization, which lets you run up to three alternate versions of your page against the original and see which one converts better. On Google Play you use Store Listing Experiments to test icons, screenshots, and descriptions on a slice of your traffic.
Test one big thing at a time, usually the icon or the first two screenshots, since those move installs the most. Give each test enough traffic and time to reach a clear result before you call it. Small wins here stack up, because every percent of conversion you gain applies to all your traffic, paid and free.
Key takeaways
- ASO has two halves: getting found through keywords and getting installs through your product page.
- Tune for each store, since Apple uses a hidden keyword field and Google Play indexes your full text.
- A/B test your icon and screenshots, and treat ASO as free traffic that compounds beside paid UA.