Productivity · App Development Cost
Cost to Build an App Like Duolingo (2026)
Quick Answer
Building an app like Duolingo costs $50,000–$150,000 for a full custom build in 2026, or $25,000–$55,000 for a lean MVP, over 5–10 months. A structured lesson engine, gamification with streaks and leagues, spaced repetition and speech recognition for pronunciation are the features that define a language-learning app and set its price.
Lean MVP
$25,000–$55,000
Full build
$50,000–$150,000
Timeline
5–10 mo
Duolingo Cost Calculator
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Estimated build cost
$67,500–$163,500
6/6 features · includes design, backend, QA and PM overhead · calibrated on 600+ project quotes · ±18%
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| Core feature | Build cost (US) |
|---|---|
| Structured lesson and course engine | $10,000–$24,000 |
| Gamification (streaks, XP, leagues, hearts) | $9,000–$22,000 |
| Spaced-repetition and adaptive difficulty | $10,000–$24,000 |
| Speech recognition and pronunciation checks | $8,000–$20,000 |
| Progress tracking and profiles | $6,000–$15,000 |
| Subscription (Super) and push reminders | $7,000–$16,000 |
| Core feature set | $50,000–$121,000 |
Design, backend infrastructure, QA, project management and app-store setup sit on top of the feature build — which is why a full Duolingo-like product reaches $50,000–$150,000. Start with the MVP feature set and add the rest once the core loop is validated.
How the real Duolingo was built — case study
Duolingo was founded in 2011 at Carnegie Mellon by Luis von Ahn, known for CAPTCHA and reCAPTCHA, together with his PhD student Severin Hacker, and opened to the public in June 2012 as a fully free language app. Streaks, hearts and leagues turned daily practice into a habit loop the rest of the industry now imitates. The company listed on NASDAQ in July 2021 and passed 100 million monthly users in 2024.
What an app like Duolingo costs by region
US rates set the $50,000–$150,000 band. With the real multipliers a UK team costs about $39,500–$118,500 (0.79×), Western Europe $34,500–$103,500 (0.69×) and Eastern Europe $19,000–$57,000 (0.38×). Course content production is priced separately and depends on the subject and languages covered, not on where the engineering team sits.
What moves the price up or down
A learning app spends its budget on the lesson engine, the gamification loop and, if included, speech recognition. A structured course engine adds $10,000–$24,000, gamification adds $9,000–$22,000, and spaced repetition that adapts to each learner adds another $10,000–$24,000. Speech recognition for pronunciation adds $8,000–$20,000. Producing course content is a separate ongoing cost, and building across iOS, Android and web multiplies the front-end effort.
Should you build the full thing, or an MVP?
Start with one course and the habit loop that keeps learners coming back: lessons, streaks and progress tracking. That MVP ships for $25,000–$55,000. Speech recognition, adaptive difficulty and a subscription tier are the features that justify charging money, so add them after daily active use shows the format works for your subject and audience. See the full mobile app cost breakdown and the MVP cost calculator.
Cost to build an app like Duolingo — FAQ
How much does it cost to build an app like Duolingo?
A full Duolingo-style learning app costs $50,000–$150,000 in 2026. The lesson engine, spaced-repetition system and gamification each add $9,000–$24,000, and speech recognition for pronunciation adds another $8,000–$20,000.
How much does gamification add to the cost?
Streaks, XP, leagues and hearts add $9,000–$22,000, but they are the reason a learning app retains users. Skipping gamification saves money up front and usually costs far more in lost retention.
What does a language-learning MVP cost?
A lesson-based MVP with one course, basic streaks and progress tracking ships for $25,000–$55,000. Speech recognition, adaptive difficulty and a subscription tier are the phase-two features that justify a paid plan.
Cost to build other popular apps
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