What Is ASO? App Store Optimization Explained

How does ASO work?

Discovery: pick words that describe what your app actually does, the way people search for it. According to Apple’s search guidance, results depend on text relevance and on user behavior like downloads, ratings, and reviews. So the keyword field alone can’t guarantee you a spot.

Conversion: once someone lands on your listing, the name, icon, text, and screenshots have a few seconds to show it solves their problem. Good screenshots show a real benefit. Stuffing search phrases into them doesn’t replace good metadata.

Product experience: a listing can get someone to download, but the app still has to deliver. Reviews will tell you when onboarding is confusing, a feature is missing, or the app doesn’t keep its promise. Use that to fix the app, not just the listing. And when you ask for ratings, ask after people get value from the app, not at a random moment.

Say you have a meal-planning app. “Weekly meal planner” describes it much better than “lifestyle.” Then a screenshot of a finished week shows what you get. One choice matches the search, the other proves the benefit. You need both.

ASO vs SEO vs paid app acquisition

SEO gets web pages to show up in search engines. ASO gets your app found inside the store, and shapes the listing people see before they install. Both are about understanding what people search for, but website SEO advice doesn’t always carry over to an app store.

Paid acquisition means buying ads. ASO improves the page those ads send people to, and it brings in organic downloads on top. Ads and listing quality answer different questions, so note any campaigns when you look at ASO results. Apple also points out that Apple Ads activity shows up in App Store Connect search analytics.

From our own apps: people who arrive from search usually already know what they want, and they’ve been more willing to pay than the people we got from ads. To be fair, we’re not ad experts.

App Store ASO and Google Play: what changes?

On iOS, don’t repeat words in the keyword field that are already in your name or subtitle, and don’t add other apps’ names. On Google Play, skip the blocks of repeated keywords and any misleading claims. Apple’s product page guidance and Google Play’s listing best practices have the full rules for each store.

Research every market on its own. A literal translation can miss the words locals actually search for, and screenshots with untranslated captions leave your listing half localized.

How to do ASO: a beginner’s workflow

Start small, so you can tell what actually made a difference. You don’t need to fix every country and every screenshot at once.

1. Choose one audience and market

   Write down who your app is for, what problem it solves, and which country and language you’ll start with. A budgeting app for freelancers needs a different message than a family expense tracker, even though both are about money.

2. Research relevant search terms

   Start from what your app does, its specific features, and the words people use in your reviews and support emails. Then search each term in the store and look at what comes up: would someone typing that actually want your app? Only after that, check how popular and competitive it is.

3. Write metadata for that intent

   Pick a clear app name and use the subtitle (or the short description on Google Play) for the main benefit. On iOS, put relevant terms in the keyword field if they’re not already in the name or subtitle. On Google Play, write a description people want to read, not a list of keywords.

4. Show the benefit in your screenshots

   Use real screens from a device or the Simulator. Put the clearest result first, add a short caption about the benefit, and let each next screenshot answer a different question. A device frame is optional. Export the sizes each supported device accepts, and open the actual files before you upload them.

5. Localize the whole promise

   Research keywords for each market instead of translating your list word for word. Then adapt captions, screens, and examples together, so people see the same promise in the listing and in the app.

6. Publish, record, and test

   Before changing anything, save your current metadata, screenshots, rankings, and store numbers. Note the date of each update and what you expect it to do. If the store lets you test visuals, use that, and look at the results before deciding what stays. Treat it like product work: hypothesis → experiment → measure → learn → repeat.

For iOS research, the Minimalist Screens ASO tool compares keyword opportunities and tracks your positions by country. We built it for our own apps, because most ASO tools felt incomplete or too expensive for an indie dev. Popularity and difficulty scores (some of them estimates) are there to guide your research; they don’t promise traffic. Keyword research and rank tracking work on the Apple App Store for now.

For the visual side, read the guide to choosing and ordering screenshots, then check your exports against the App Store screenshot size requirements.

How to measure app store optimization results

Look at visibility, downloads, and what happens inside the app separately. Ranking higher only helps if it brings people who want what your app does.

• Keyword positions: track the same relevant terms in the same country over time. An App Store rank tracker keeps that history for you.
• Discovery and downloads: check impressions and downloads in your store console, filtered by source and country where you can. Watch how the mix of search, browse, and ad traffic changes.
• Conversion: compare the store’s conversion rate over similar periods and segments. Check how it’s calculated first: some reports divide by impressions, others by product page views, so the numbers don’t compare directly.
• Quality after installation: look at activation, retention, and purchases next to downloads. If a listing brings more installs but the wrong people, it needs another look.

Small numbers still tell you something. Smoke Off, our quit-smoking app, was ranking around 12th–14th for a few keywords in Italy, and two free trials came from Italy alone. Not much, but enough to know where to push next.

Write down every update and compare periods with enough traffic. Seasons, ad campaigns, competitors, and new releases can all move the numbers. If you change several things at once, a before-and-after comparison can’t tell you which one worked.

Common ASO mistakes to avoid

• Choosing volume before relevance. A popular phrase is a bad target if the people searching it want a different app.
• Stuffing metadata with repeated keywords. Use each field on purpose and keep the text easy to read for real people.
• Promising features the app doesn’t have. Screenshots and descriptions have to match the app you submit.
• Translating words without checking the market. Look at local search results and adapt both the text and the visuals.
• Treating launch as the finish line. Come back to the listing when the app changes, and let your numbers decide the next update.