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InterSub
✓ verifiedFreemium
Browser extension offering interactive dual subtitles and instant word translations for language learning while streaming.
100K visits/mo
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BoldVoice
✓ verifiedPaid
American-accent training app pairing Hollywood dialect-coach video lessons with instant AI pronunciation feedback.
512K visits/mo2.1K saves
Pricing
Free: $0/mo
Pay-as-you-go: from $1.50
Premium: from $6/mo
Free trial available
No public pricing
Free trial available
Core features
- ✦Interactive dual subtitles
- ✦Instant hover word translations
- ✦On-the-fly subtitle translation
- ✦Personal wordbook with Anki sync
- ✦Multi-platform (YouTube, Netflix, Coursera, etc.)
- ✦Phrase/idiom collocation detection
- ✦Hollywood dialect-coach video lessons
- ✦Instant AI pronunciation feedback
- ✦Sound-level mistake analysis with tips
- ✦Targeted practice drills
- ✦Conversation practice and AI role-play
- ✦Progress and score tracking
Use cases
- →Learning a language via shows and courses
- →Looking up words while watching
- →Building and reviewing vocabulary
- →Reduce accent and improve clarity
- →Prepare to speak confidently at work
- →Practice English pronunciation daily
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