You can build a great app and still get no installs if nobody finds it. App store optimization (ASO) is the work that fixes that. This guide explains what ASO is, how it works on Google Play and the Apple App Store, and what to do first.
App store optimization definition
App store optimization is the process of improving an app's listing so it ranks higher in app store search and converts more visitors into installs. Think of it as SEO for apps. The two goals are visibility (appearing for the right searches) and conversion (turning a view of your listing into an install).
Why ASO is important in digital marketing
- Most users discover apps by searching inside the store, so rank decides installs.
- Organic installs are free and keep coming, unlike paid ads that stop when the budget stops.
- A better listing lowers your cost per install on paid campaigns, because more visitors convert.
- Strong ratings and rank build trust, which feeds more installs.
The main ASO ranking factors
Keywords
On Google Play, the title, short description and long description are all indexed, so use your main keywords naturally in each. On the App Store the title, subtitle and a hidden 100-character keyword field matter most, and keywords repeated across those fields are wasted.
Title and subtitle
Put the most important keyword in the title along with your brand, for example "BrandName: Keyword Phrase". Keep it readable.
Icon, screenshots and video
These affect conversion rather than rank directly. A clear icon and screenshots that show the benefit in the first two images can make a big difference.
Ratings and reviews
Higher ratings improve both rank and conversion. Ask happy users to rate after a positive moment, and reply to reviews.
Install velocity and retention
Stores favour apps that people install, open and keep. Crashes, slow start-up and uninstalls hurt rank.
Localization
Translating and adapting your listing to other languages opens new keyword sets with less competition.
A simple ASO checklist
- List 30 to 50 keywords your customers might search, then check which ones have competition you can beat.
- Rewrite the title, subtitle and descriptions with the best keywords.
- Redesign screenshots to show benefits with short captions.
- Add a short preview video if you can.
- Add an in-app review prompt after a positive action.
- Track rank, impressions, page views and conversion every month.
- Test one change at a time so you know what worked.
Common ASO mistakes
- Stuffing keywords unnaturally, which hurts conversion and can break store rules.
- Copying competitors' titles instead of finding gaps.
- Ignoring crashes and negative reviews.
- Changing everything at once and being unable to tell what helped.
Need help?
Netstech publishes its own apps and offers app store optimization services with a free audit of your listing. If you still need the app itself, see mobile app development, and read how to choose between Ionic, Flutter and React Native.
Frequently asked questions
What does ASO stand for?
ASO stands for app store optimization, sometimes spelled app store optimisation.
How is ASO different from SEO?
SEO improves rank in web search results such as Google Search. ASO improves rank and conversion inside app stores such as Google Play and the App Store. The ideas are similar but the ranking factors and fields differ.
How long does ASO take?
Keyword and title changes can show results within a few weeks, while ratings and conversion improvements build over two to three months. ASO is an ongoing process.
Is ASO worth it for a small app?
Yes. For small apps with little ad budget, ASO is often the cheapest source of installs.