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Education & E-Learning · head to head

Duolingo vs Open edX

Duolingo logo

Duolingo

Education & E-Learning

Learn a language for free, forever

From
Free
Rated
-
Full reviewWebsite
Open edX logo

Open edX

Education & E-Learning

Open-source platform powering online learning

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Duolingo free tier includes ads and energy-based hearts system limiting daily practice without paying; Open edX open edX has no licensing fee as open source software, but the vendor's own site states that hosting and infrastructure costs are the operator's responsibility, so there is no bundled managed-hosting price to compare against SaaS competitors.
  • They diverge on capability: Duolingo covers 40+ languages, Open edX covers Course authoring.

Where they differ

Only the attributes on which Duolingo and Open edX actually diverge.

Attributes where Duolingo and Open edX differ
AttributeDuolingoOpen edX
Pricing modelUnknownfree
PlatformsiOS, Android, WebWeb, IOS, Android
Founded20112012

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Education & E-Learning).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Duolingo

  • 40+ languages
  • Gamification
  • Streaks
  • Leaderboards
  • Stories
  • Podcasts
  • Speaking exercises
  • AI tutor

Only in Open edX

  • Course authoring
  • Interactive videos
  • Assessments
  • Discussions
  • Certificates
  • Analytics
  • Mobile apps
  • xBlocks

Both cover

  • Web support
  • IOS support
  • Android support

What people use each for

The jobs each tool is most often brought in to do.

Duolingo

  • Language learningnot Open edX
  • Travel preparationnot Open edX
  • Career developmentnot Open edX
  • Cultural explorationnot Open edX

Open edX

  • MOOC creationnot Duolingo
  • Corporate trainingnot Duolingo
  • Blended learningnot Duolingo
  • Degree programsnot Duolingo

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Duolingo

  • Free tier includes ads and energy-based hearts system limiting daily practice without paying
  • Gamification focus may appeal to casual learners but lacks depth for serious language study beyond conversational basics
  • Limited to short, bite-sized lessons without extensive grammar explanations or cultural context

Open edX

  • Open edX has no licensing fee as open source software, but the vendor's own site states that hosting and infrastructure costs are the operator's responsibility, so there is no bundled managed-hosting price to compare against SaaS competitors.

Pricing, plan by plan

Duolingo

Free
  • FreeFree
    • All language courses
    • Ad-supported
    • Limited hearts (5-heart system)
  • Super$12.99/month
    • Ad-free
    • Unlimited hearts
    • Extra practice tools
  • Super Family$119.99/year
    • Up to 6 users
    • All Super features
    • Family group
  • Max$null/mo
    • All Super features
    • Video Call with Lily
    • Roleplay scenarios

Open edX

Free
  • Self-HostedFree
    • Full platform
    • Community support
    • All features
  • Managed Hosting$undefined/month
    • Hosted solution
    • Support
    • Maintenance

Which should you pick?

Choose Duolingo if

  • You need 40+ languages.
  • You want to start without paying.
  • You work on iOS, Android, Web.
  • You also want gamification.
Duolingo review

Choose Open edX if

  • You need course authoring.
  • You want to start without paying.
  • You work on Web, IOS, Android.
  • You also want interactive videos.
Open edX review

Questions people ask

Is Duolingo or Open edX better?
Neither clearly leads. Duolingo starts at Free and Open edX at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Duolingo or Open edX?
Duolingo starts at Free and Open edX at Free.
Does Duolingo or Open edX run on more platforms?
Duolingo runs on iOS, Android, Web. Open edX runs on Web, IOS, Android.
Can I use Duolingo for free?
Both have a free tier, so you can try either at no cost before committing.
What is Duolingo best used for?
Duolingo is most often used for language learning, travel preparation, career development, cultural exploration. Of those, language learning and travel preparation are not what Open edX is typically brought in for.
What can Duolingo do that Open edX cannot?
Duolingo covers 40+ languages, Gamification, Streaks, Leaderboards. Open edX covers Course authoring, Interactive videos, Assessments, Discussions. Both handle Web support, IOS support, Android support.

Answered from the vendors’ own pages

Duolingo: What is Duolingo's pricing model?

Duolingo offers free tier with ads and limited features, Super Duolingo at $12.99/month (ad-free, unlimited hearts, extra practice), Super Family at ~$119.99/year for up to 6 users, and Duolingo Max with AI features like Video Call and Roleplay.

Source
Duolingo: Is Duolingo effective for language learning?

Duolingo has 135+ million monthly active users as of Q3 2025, making it the world's most widely used language-learning app. Its gamified approach and free tier have driven massive adoption.

Source
Duolingo: What AI features does Duolingo Max include?

Duolingo Max includes Video Call for conversation practice with AI character Lily and Roleplay for scenario-based speaking practice. As of January 2026, Explain My Answer became free for all users.

Source
Duolingo: Does Duolingo work offline?

Duolingo is primarily online, though it may offer limited offline lesson downloads on some platforms. Full features require internet connection.

Source
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