Softwr

LMS · head to head

ClassDojo vs Duolingo

ClassDojo logo

ClassDojo

LMS

Build amazing classroom communities

From
Free
Rated
-
Full reviewWebsite
Duolingo logo

Duolingo

Education

Learn a language for free, forever

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: ClassDojo the AI homework helper, the 2,000 plus digital book library, detailed progress reports, memory albums and calendar sync are all restricted to the paid ClassDojo Plus subscription; Duolingo free tier includes ads and energy-based hearts system limiting daily practice without paying
  • They diverge on capability: ClassDojo covers Behavior tracking, Duolingo covers 40+ languages.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which ClassDojo and Duolingo actually diverge.

Attributes where ClassDojo and Duolingo differ
AttributeClassDojoDuolingo
Pricing modelfreemiumUnknown
PlatformsWeb, IOS, AndroidiOS, Android, Web
CategoryLMSEducation

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), founded (2011).

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 ClassDojo

  • Behavior tracking
  • Parent messaging
  • Class story
  • Student portfolios
  • Dojo points
  • Translation
  • School story
  • Mobile app

Only in Duolingo

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

Both cover

  • Google Classroom
  • Web support
  • IOS support
  • Android support

What people use each for

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

ClassDojo

  • classroom communication and behavior trackingnot Duolingo
  • teacher-parent communicationnot Duolingo
  • student engagement toolsnot Duolingo

Duolingo

  • Language learningnot ClassDojo
  • Travel preparationnot ClassDojo
  • Career developmentnot ClassDojo
  • Cultural explorationnot ClassDojo

Where each one falls short

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

ClassDojo

  • The AI homework helper, the 2,000 plus digital book library, detailed progress reports, memory albums and calendar sync are all restricted to the paid ClassDojo Plus subscription
  • ClassDojo Plus is sold to families rather than to schools, so parents pay for the premium tier
  • The Plus page publishes no monthly or yearly price, only a 7 day free trial
  • No pricing is published for the school leader or district offerings

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

Pricing, plan by plan

ClassDojo

Free
  • FreeFree
    • Behavior points
    • Messaging
    • Class story
  • Plus$7.99/month
    • All free features
    • Beyond School
    • Dojo Islands
  • School$undefined/month
    • School story
    • Admin tools
    • Analytics

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$119.99/year
    • Up to 6 users
    • All Super features
    • Family group
  • Max$undefined/mo
    • All Super features
    • Video Call with Lily
    • Roleplay scenarios

Which should you pick?

Choose ClassDojo if

  • You need behavior tracking.
  • You want to start without paying.
  • You work on Web, IOS, Android.
  • You also want parent messaging.
ClassDojo review

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

Questions people ask

Is ClassDojo or Duolingo better?
Neither clearly leads. ClassDojo starts at Free and Duolingo at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ClassDojo or Duolingo?
ClassDojo starts at Free and Duolingo at Free.
Does ClassDojo or Duolingo run on more platforms?
ClassDojo runs on Web, IOS, Android. Duolingo runs on iOS, Android, Web.
Can I use ClassDojo for free?
Both have a free tier, so you can try either at no cost before committing.
What is ClassDojo best used for?
ClassDojo is most often used for classroom communication and behavior tracking, teacher-parent communication, student engagement tools. Of those, classroom communication and behavior tracking and teacher-parent communication are not what Duolingo is typically brought in for.
What can ClassDojo do that Duolingo cannot?
ClassDojo covers Behavior tracking, Parent messaging, Class story, Student portfolios. Duolingo covers 40+ languages, Gamification, Streaks, Leaderboards. Both handle Google Classroom, Web support, IOS support, Android support.

Answered from the vendors’ own pages

ClassDojo: Is ClassDojo free?

Yes, ClassDojo core platform is free for teachers forever; the service is positioned as a free tool for educators without required payment.

Source
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
ClassDojo: What is ClassDojo Plus and how much does it cost?

ClassDojo Plus is the premium tier; specific pricing details are not published on the ClassDojo website and require direct inquiry with the company.

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
ClassDojo: Are parents charged to use ClassDojo?

ClassDojo does not charge parents for the service; the free platform includes parent-teacher communication features at no cost to families.

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
ClassDojo: Why is ClassDojo free if there's a premium tier?

ClassDojo offers free core features to teachers to drive adoption; premium features for advanced needs or professional development are available as paid add-ons.

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
Share

Related pages

More on ClassDojo

More on Duolingo

Keep looking

Other head to heads