Free ASO keyword tool

“duolingo” keyword research

Enter a keyword to see its App Store or Google Play search popularity, how hard it is to rank, related keywords and the apps in the top 10.

Popularity
77
Difficulty (hard)
67
Search results
249
Rough daily downloads at #1
8,611

App Store, United States · measured 2026-10-23

Here: one keyword at a time in 10 countries. With a free account: every store country, up to 25 keywords per lookup, daily rank tracking and the keywords any competitor ranks for. Sign up free →

Related keywords

KeywordPopularityDifficultyResults
duolingo-language lessons50——
duolingo abc47——
duolingo kids———
duolingo gratis———
duolingo spanish———
duolingo english test———
duolingo math———
duolingo asl———
duolingo test———

Top apps for “duolingo”

  1. 1
    Duolingo: Learn Languages
    Duolingo · ★ 4.7 · 5,516,319 ratings
  2. 2
    Babbel - Language Learning
    Babbel GmbH · ★ 4.7 · 756,461 ratings
  3. 3
    Falou - Fast language learning
    Moymer · ★ 4.8 · 98,128 ratings
  4. 4
    Learna: Speak & Learn English
    DEEP FLOW SOFTWARE SERVICES · ★ 4.6 · 440,543 ratings
  5. 5
    Speak: Language Learning
    Speakeasy Labs · ★ 4.8 · 64,881 ratings
  6. 6
    Learn to Read - Duolingo ABC
    Duolingo · ★ 4.2 · 3,830 ratings
  7. 7
    LingoDeer - Learn Languages
    LingoDeer Co, Ltd. · ★ 4.7 · 28,044 ratings
  8. 8
    Airlearn - Language Learning
    UNACADEMY INC · ★ 4.8 · 47,259 ratings
  9. 9
    Memrise: Language Learning App
    Memrise Limited · ★ 4.8 · 217,401 ratings
  10. 10
    Pimsleur | Language Learning
    Simon & Schuster · ★ 4.7 · 30,412 ratings

Frequently
asked questions

Can't find it? Email us, a human answers.

App Store Optimization keyword research finds the search terms people type into the App Store and Google Play, how often they are searched (popularity) and how hard it is to rank for them (difficulty). You then put the best terms in your title, subtitle and keyword field (App Store) or title and description (Google Play).

Popularity is a 5–100 score on the same scale as Apple’s Search Ads popularity. Where we have Apple’s own value we use it; otherwise we estimate it from the store’s search suggestions (how short a prefix brings the term up, and how high). Use it to compare terms with each other; it is not a monthly search count.

Difficulty (0–100) estimates how hard it is to reach the top results for a term, from the 10 apps ranking there now: how many ratings they have, their average rating, how many carry the term in their title or subtitle, how many come from very large developers and how many were updated recently. Under 30 is realistic for a new app.

Yes. Look up terms here without an account. A free AppGoat account tracks your keywords daily, finds the terms your competitors rank for, and lets your AI agent rewrite your metadata around them.

Here: the App Store and Google Play in the US, UK, Germany, France, Japan, Brazil, India, South Korea, Canada and Australia. With a free account, through the dashboard, the API or your agent: every store country (about 175 for the App Store, 145 for Google Play).

Get started

Turn keywords into rankings

Track your keywords daily, see which terms competitors rank for, and let your AI agent rewrite your title, subtitle and keyword field around them. You approve every change.