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Guide to ASO Keyword Research: How to Do It and Why It Matters

App Store Optimization
Sep 19, 2025

Search term research is the process of identifying the most relevant keywords for your app.

Apple and Google’s search algorithms analyze various metadata fields—such as the title, subtitle, and keywords field in the App Store, and the short and full descriptions in Google Play. Their goal is to understand what the app does and match that information with user search behavior.

The more closely your chosen keywords match real user terms, the more likely your app will appear in search results and grab the attention of your target audience.

The process is similar to SEO (search engine optimization on the web), but it has its own unique characteristics. To better understand the differences, let's compare ASO and SEO:

Parameter ASO (App Store Optimization) SEO (Search Engine Optimization)
Target platform App Store, Google Play Websites in Google, Bing etc.
Key fields Title, Subtitle, Keywords Field (App Store), Description (Google Play) Title, meta description, H1, content, images, alt-tags
Ranking algorithms Focus on keyword relevance, settings, and reviews Focus on content quality, links, behavioral signals
User behavior App listing page views, installs Page views, clicks, interaction
Goal Increasing organic app installs Driving traffic to the website

Although the fundamental principles are similar, ASO focuses on how users search for and choose apps, rather than websites. This means that search phrases must align not only with the keywords themselves but also with user expectations around the app’s functionality and value.

Find out more in our blog post: “What is ASO and how to promote a mobile app correctly.

The benefits of doing keyword research:

  1. Increased visibility. High-quality search optimization boosts your app’s rankings for relevant terms, enhances page visibility in the app store, and drives the growth of organic installs.
  2. Targeted traffic. By focusing on specific, relevant search terms, you can attract users who are more likely to convert, improving your app’s overall conversion rate.
  3. Competitive advantage. Effective keyword research allows you to analyze your competitors' strategies and uncover opportunities to outperform them in search results.
  4. Cost-effective marketing. As organic traffic increases, the need for paid user acquisition decreases, making your marketing efforts more sustainable and budget-friendly over time.
App Store search examples

How to Conduct App Store Optimization Keyword Research

Below, I’ll outline the key stages of App Store keyword research—from idea generation to implementation in your app’s metadata. Whether you're new to ASO or aiming to refine your current strategy, this article offers practical tips and helpful tools to support your success.

Since collecting, analyzing, and tracking keyword performance can be technically challenging, it's worth using specialized ASO tools that simplify the process:

  • Asolytics;
  • MobileAction;
  • AppFollow;
  • AppTweak;
  • AppRadar.
Keep in mind that keyword research isn’t a one-time task—it’s an ongoing process that requires regular attention. Trends shift, new competitors enter the market, and app store algorithms continue to evolve.

Step 1: Brainstorming

Start by collecting all potential keywords related to your app’s features and the problems it solves. Focus on the search terms your target audience is most likely to use in their search terms. It’s also helpful to gain an outside perspective—ask others how they would describe your app and what search terms they might use to find it.

Document all relevant keyword options and combinations—even the ones that seem obvious. This list will serve as the foundation for your further analysis.

Step 2: Competitor Research

The simplest way to start is by analyzing the metadata of your competitors. Review both direct competitors and the top-performing apps in your category to identify the keywords they rank for. ASO keyword tools like Asolytics, Sensor Tower, App Annie, and Mobile Action can streamline this process and help you gather valuable insights. Add all relevant keywords you discover to your list—these will be analyzed and prioritized in the next steps.

Competitors' brands

Using competitors’ brand names in your metadata can be an ASO strategy to attract attention and drive traffic to your app. It allows you to leverage your competitors’ popularity, appear in search results when users look for their apps, and potentially convert their audience into your own users.

You can include popular, brand-related keywords used by competitors:

  • in the visible parts of metadata in the App Store and Google Play, if competitors' brand names are commonly used search terms;
Examples of apps using commonly searched terms as brand names in the App Store

Examples of apps using commonly used words as brand names on Google Play

  • in the keyword field of the App Store.

However, be sure to follow the App Store’s guidelines and ethical standards to avoid potential penalties or removal.

Step 3: Tips

The App Store and Google Play display popular search suggestions directly in the search bar. These recommendations offer insight into what users are searching for most frequently. The higher a phrase appears on the list, the greater the demand for it.

How to conduct keyword research using auto-suggestions

Begin by typing basic search terms that describe your app into the App Store or Google Play search bar. Review the autocomplete suggestions that appear and note them down—these can be valuable for generating additional relevant keyword ideas later.

For example, if your app is related to fitness, type in the search term “fitness” and review all the suggestions that appear. These may include terms such as “fitness bracelet,” “fitness app,” “fitness training,” and “fitness tracker.” Once you’ve written down the auto-suggestions, you can later enter them one by one to uncover even more keyword variations.

Suggestions displayed under the App Store search bar
Suggestions displayed under the Google Play search bar

To discover as many search terms as possible from autocomplete suggestions, use ASO services:

Example of using the Asolytics tool to analyze auto-suggestions

Step 4: Apple Ads recommendations

When setting up campaigns in Apple Ads, start by entering basic terms that describe your app’s functionality. The platform will then suggest additional keyword options with strong promotional potential. Evaluate each suggestion for relevance and its ability to improve visibility, then select the most effective ones to expand your reach through a broader range of search combinations.

Step 5: Research using reviews

App store reviews reveal how users describe the product, its functionality, and its benefits. Analyze not only your own app’s reviews, but also those of your competitors. This can help you better understand your audience’s expectations and collect relevant language for your keyword strategy.

Examples of App Store review analysis

Key steps to take:

  1. Collect both positive and negative reviews to get a well-rounded understanding of user impressions.
  2. Analyze reviews of similar apps — this will help you identify new search terms users commonly use to describe similar features.
  3. Look for recurring words and phrases, especially those related to functionality, usability, and problem-solving.
  4. Use ASO services to analyze app reviews—both yours and your competitors’—as another source of relevant keyword ideas.
Example of using the Asolytics tool to analyze app reviews

Step 6: Translation of key terms

Translating search terms can be both a valuable and insightful step in your keyword research. While it may seem unnecessary at first, it becomes especially important when localizing your app for different languages. Translation can reveal highly popular terms with low competition in search results. By incorporating these localized keywords into your metadata, you can increase impressions and drive more app installs.

Analyzing and Creating the Final ASO Keyword List

Once you have compiled a list of potential keywords, select only those that you will use in the app metadata.

Analyze the keywords you’ve collected, taking into account the following factors:

  1. Popularity (SAP in the App Store, Priority in Google Play) — indicates how often users enter a particular search term. The higher the score, the more traffic the keyword can potentially generate.

    Popularity is measured on a scale from 5 to 100: the higher the value, the more frequently the term appears in searches. However, less popular keywords are often easier to rank for, making them especially useful for new or lesser-known apps.

    Please note: SAP has been undergoing constant changes recently, so this must be taken into account when compiling and updating metadata.
  1. Daily Impressions — An estimate of how many views an app page could receive in the top position for a specific search term.
  2. Rank — The app’s ranking in the search results for a specific term.
  3. Competitors in Top 10 — Helps assess keyword relevance. If most of the top 10 results are apps with similar topics or features, the term is considered highly relevant.
  4. Results — This parameter indicates the number of apps already indexed for a given term. If you find a popular keyword with low competition (fewer than 10 results), you have a strong chance to rank highly and gain installs quickly.

Since the visible fields in the app metadata are the most important for indexing, select up to ten primary keywords that you will use in these fields, and add the remaining ones to the full description and keywords field.

The Apple App Store and Google Play have similar metadata fields, but there are certain key differences:

App Store Google Play
Title — 30 characters Title — 30 characters
Subtitle — 30 characters Short Description — 80 characters
Keyword Field — 100 characters Long Description — 4000 characters

App name: Include the most important keywords here, as this element carries the greatest weight in the algorithms. You may also include your brand name, though this is not essential during the early stages of project development.

Subtitle (iOS): Expand your reach by including additional relevant keywords that complement the app title.

Keywords Field (iOS): Populate this field with relevant phrases not already used in the app title or subtitle—avoid any duplication.

Description (Google Play): Naturally incorporate search terms throughout the text, especially near the beginning, as these lines have the greatest impact on indexing.

Keep in mind that changes in the App Store typically take effect within two to three days after release, whereas reindexing in Google Play can take up to a month.

Common Mistakes in Keyword Research

In the previous stages, you’ve already become familiar with the process of working with search terms. However, there are common mistakes that frequently occur. It’s important to be aware of these and avoid them.

  1. Using irrelevant keywords

Choose only terms that accurately reflect your app’s functionality. This will help attract targeted organic traffic and boost your search rankings.

  1. Ignoring competitor analysis

Make it a habit to regularly analyze your competitors’ apps. This will help you understand which keywords they use and how they optimize their apps.

  1. Ignoring customer feedback

Regularly reviewing user comments is valuable—they provide new ideas for improving features and expanding search coverage.

  1. Insufficient keyword updating

To stay visible in search results, regularly review and update your text fields to reflect changes in audience behavior. Ideally, App Store metadata should be refreshed twice a month.

  1. Insufficient use of analytics

Utilize specialized tools to analyze keywords, assess their effectiveness, and adjust your strategy based on data-driven insights.

  1. Overuse of popular phrases

Avoid using metadata made up only of high-frequency keywords. Combine them with less competitive, niche terms—this approach is especially important for new apps, which find it easier to rank for more specific search terms.

  1. Ignoring long phrases

Use not only short keywords but also multi-word search phrases—they tend to be less competitive and better attract a targeted audience that is more likely to engage with your app.

Avoiding these common mistakes will help you achieve better results, increase your app’s visibility, and attract more users!

Traffic
Popularity
Keyword
1
385 585
99
instagram
2
325 480
98
whatsapp
3
201 485
95
telegram
4
177 737
94
facebook
5
119 067
91
tik tok
6
92 427
90
ifood
7
80 473
87
tinder
8
69 379
87
capcut
9
65 120
87
nubank
10
64 602
86
uber

    Conclusion

    1. Keyword research for ASO is the foundation of your app’s visibility in the store.
    2. Carefully selected keyword phrases increase the chances of indexing for relevant terms.
    3. ASO and SEO share common principles but focus on different platforms and user behavior.
    4. Researching keywords helps increase visibility, attract targeted traffic, and reduce advertising costs.
    5. Effective ASO research involves several key stages:
      • brainstorming phrases with a focus on functionality and usefulness;
      • analyzing competitors to find active keywords;
      • using Apple Ads autocomplete and recommendations;
      • analyzing user reviews;
      • translating search terms in case of localization;
      • evaluating popularity, competition, and search rankings.
    1. Metadata should be optimized according to the structure of the App Store and Google Play.
    2. Keyword optimization is not a one-time task but an ongoing process.
    3. By avoiding common mistakes, you can significantly improve the effectiveness of your ASO strategy.

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