How to Do Keyword Research for Your Mobile App

Why Keyword Research Is the Foundation of ASO

Every app store download starts with a search. On the App Store, 65% of downloads come directly from search. On Google Play, the number is similar. If you're not ranking for the right keywords, you're invisible.

Keyword research tells you exactly what your potential users are typing into the search bar — and which of those terms you can realistically rank for.

Step 1: Brainstorm Seed Keywords

Start with the basics. Write down:

• What your app does — "meditation", "budget tracker", "photo editor"
• Problems it solves — "reduce stress", "save money", "remove background"
• Who it's for — "meditation for beginners", "student budget app"
• Features — "sleep sounds", "expense categories", "filters"

Aim for 20-30 seed keywords. Don't filter yet — quantity first.

Step 2: Expand With Autocomplete

Both app stores have autocomplete that reveals what users actually search for:

1. Open the App Store or Google Play
2. Type each seed keyword and note the suggestions
3. These suggestions are sorted by popularity — the first suggestion gets the most searches

For example, typing "meditation" might show:

• meditation app
• meditation timer
• meditation for sleep
• meditation music
• meditation for anxiety

Each of these is a validated keyword that real users search for.

Step 3: Analyze the Competition

For each keyword, look at what's currently ranking:

• How many apps are competing for this keyword?
• How strong are the top results? (big brands vs. indie apps)
• Is there a gap you can fill?

A keyword like "meditation" has massive volume but fierce competition. "Meditation timer for runners" has less volume but you might rank on page one immediately.

The sweet spot: medium volume + low competition keywords.

Step 4: Check Your Current Keyword Density

Use our free Keyword Density Checker to analyze your current listing:

• Paste your app's title, subtitle, and description
• See which keywords appear most frequently
• Identify missing high-value keywords
• Check if you're within character limits

Step 5: Prioritize Your Keywords

Score each keyword on two axes:

• Relevance (1-5): How closely does it match what your app does?
• Opportunity (1-5): Can you realistically rank for it?

Focus on keywords that score high on both. A perfectly relevant keyword you can't rank for is useless. A keyword you can rank for but doesn't match your app will get downloads that immediately uninstall.

Step 6: Place Keywords Strategically

Not all metadata fields carry equal weight:

1. Title — highest ranking weight (put your #1 keyword here)
2. Subtitle (iOS) — second highest (use your #2-3 keywords)
3. Keyword field (iOS) — indexed but hidden (use remaining keywords)
4. Short description (Android) — visible and indexed
5. Long description (Android only) — indexed, include keywords naturally

Key Rules

• Never repeat keywords across fields — Apple counts them once regardless
• Use singular forms in the keyword field — Apple handles plurals
• Separate with commas, no spaces in the iOS keyword field
• Write naturally in descriptions — keyword stuffing hurts conversion

Step 7: Monitor and Iterate

Keyword research isn't a one-time task:

• Check rankings weekly for your target keywords
• Update keywords monthly based on performance data
• Watch for seasonal trends — "gift" keywords spike in December
• Monitor competitors — if they change keywords, you should know

Free vs Paid Keyword Research

Free Methods

• App store autocomplete suggestions
• Google Trends for relative interest
• Our Keyword Density Checker to analyze listings
• Competitor listing analysis (read their metadata)

Paid Tools (Starting at $9/mo)

• Search volume estimates
• Keyword difficulty scores
• Competitor keyword tracking
• Historical ranking data
• Keyword suggestions based on your app

Quick Wins You Can Do Today

1. Check your title — does it include your most important keyword?
2. Analyze autocomplete — spend 15 minutes noting suggestions
3. Run our Keyword Density Checker on your listing — it takes 30 seconds
4. Fill your iOS keyword field completely — use all 100 characters
5. Read competitor listings — what keywords are they targeting?

Keyword research is the highest-ROI activity in ASO. An hour of research can lead to thousands of additional organic downloads over time.