Cognii vs Duolingo Max

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

Cognii

Cognii

AI tutoring that adapts to each student's learning pace

Duolingo Max

Duolingo Max

AI-powered language learning with GPT-4

Rating5.0 (43 reviews)4.5 (235 reviews)
Pricing Modelpaidpaid
Starting PriceFrom €200/moFrom €14/mo
Best ForK-12 and higher education institutions seeking automated STEM tutoring that evaluates reasoning beyond multiple-choice answers.Language learners wanting interactive AI conversation practice
Free Tier
API Access
Team Features
Open Source
Tags
team features
Visit Cognii →Visit Duolingo Max →

Cognii

Pros

  • + Process natural language responses instead of multiple choice
  • + Adapt content difficulty based on demonstrated understanding
  • + Generate detailed feedback on reasoning and misconceptions
  • + Track progress across multiple STEM subjects

Cons

  • - Limited subject coverage compared to general tutoring platforms
  • - Requires institutional partnership or enterprise pricing for most schools
View full Cogniireview →

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 →

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Cognii vs Duolingo Max — Comparison 2026 | ToolSpotter