Compare tools
Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
⇄ Comparison dimension — pick the market you're actually shopping in
✕
Language REACTOR
✓ verifiedFreemium
Browser extension that adds dual subtitles and click-to-lookup to Netflix and YouTube for learning languages.
1.7M visits/mo
✕
gizmo.ai
✓ verifiedFreemium
AI study app that turns notes, PDFs, YouTube and slides into quizzes and flashcards to help students revise.
5.4M visits/mo10K saves
Pricing
No public pricing
No public pricing
Core features
- ✦Dual subtitles on Netflix and YouTube
- ✦Click-to-lookup word translations
- ✦Saveable vocabulary items
- ✦Playback controls for language study
- ✦Works as a browser extension
- ✦AI-generated quizzes
- ✦Flashcard maker
- ✦Create flashcards from PDFs, notes and slides
- ✦YouTube and PowerPoint summarizers
- ✦Spaced-repetition study
- ✦Mobile app
Use cases
- →Learn a language while watching shows
- →Look up and save new words from video
- →Study with dual subtitles
- →Revise for school and university exams
- →Turn notes and PDFs into flashcards
- →Study with AI-generated quizzes
Visit