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Compare tools

Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.

Migaku logo
Migaku
✓ verifiedFree trial

Immersion-based language learning toolkit that turns Netflix, YouTube, and web content into study material via a browser extension and apps.

11K saves
Language REACTOR logo
Language REACTOR
✓ verifiedFreemium

Browser extension that adds dual subtitles and click-to-lookup to Netflix and YouTube for learning languages.

1.7M visits/mo
Astra AI logo
Astra AI
✓ verifiedFreemium

AI tutor for school and university subjects with step-by-step help, exam prep, oral/mock exams and flashcards.

4.4M visits/mo1.7K saves
Brilliant logo
Brilliant
✓ verifiedFreemium

Interactive learning app with an AI tutor for math, coding, science and data-visual, adaptive lessons for all ages.

2.6M visits/mo
Pricing

No public pricing

Free trial available

No public pricing

No public pricing

Free trial available

No public pricing

Core features
  • Chrome extension for immersive study on real sites
  • Netflix and YouTube subtitle learning
  • Spaced-repetition memory system
  • Built-in dictionaries and grammar reference
  • iOS and Android apps
  • Support for 12+ languages
  • Dual subtitles on Netflix and YouTube
  • Click-to-lookup word translations
  • Saveable vocabulary items
  • Playback controls for language study
  • Works as a browser extension
  • Step-by-step subject explanations
  • Photo-based math problem solving
  • Oral and mock exam practice with grading
  • Personalized study plans
  • Flashcards from uploaded notes
  • Coverage of many subjects, user-created subjects
  • Personal AI tutor (Koji)
  • Visual, interactive lessons
  • Adaptive practice based on mastery
  • Courses in math, CS, science and data
  • Gamified streaks, levels and daily goals
  • iOS and Android apps
Use cases
  • Learn a language through native media
  • Study vocabulary with spaced repetition
  • Turn videos and articles into lessons
  • Progress toward proficiency exams like JLPT
  • Learn a language while watching shows
  • Look up and save new words from video
  • Study with dual subtitles
  • Prepare for school or university exams
  • Get help understanding tough concepts
  • Practice oral exams out loud
  • Study from your own notes
  • Learning math and coding by doing
  • Getting adaptive tutoring outside class
  • Building STEM intuition
  • Daily skill practice
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