Duolingo Max vs Cognii

A detailed comparison to help you choose between Duolingo Max and Cognii.

Duolingo Max

Duolingo Max

AI-powered language learning with GPT-4

Cognii

Cognii

AI formative assessment with open-response

Rating4.5 (235 reviews)5.0 (43 reviews)
Pricing Modelpaidpaid
Starting PriceFrom €14/moFrom €200/mo
Best ForLanguage learners wanting interactive AI conversation practiceEducational institutions wanting AI to provide immediate feedback on open-ended student responses
Free Tier
API Access
Team Features
Open Source
Tags
team features
Visit Duolingo Max →Visit Cognii →

Duolingo Max

Pros

  • + Engaging gamified learning
  • + Real AI conversation practice
  • + Best language learning UX

Cons

  • - Subscription required for AI
  • - Limited to Duolingo languages
View full Duolingo Maxreview →

Cognii

Pros

  • + Open-response assessment AI
  • + Real-time feedback
  • + Reduces grading burden

Cons

  • - Assessment tool only
  • - Enterprise EdTech pricing
View full Cogniireview →

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Duolingo Max vs Cognii — Comparison 2026 | ToolSpotter