About this app
Videos + Captions + Translation - Take Your English Learning to the Next Level CaptionTube is an app specialized in English learning that leverages YouTube video captions. By displaying English captions and Japanese translations simultaneously with a fully synchronized highlight feature, you can improve your English skills efficiently while having fun. ------------------------------------------- Key Features ------------------------------------------- ● Real-time Caption Synchronization ・Easy-to-read captions divided into sentences ・Auto-highlight captions based on video playback position ・Jump instantly to the corresponding scene by tapping a caption ・Word-by-word highlighting for detailed review ・Text search within captions to quickly find specific words or phrases ● Japanese Translation Feature ・Display Japanese translations of English captions with one tap (iOS 18+) ● Simple Operation ・Get captions instantly by entering a YouTube video URL or ID ・Intuitive interface that anyone can start using immediately ・Keyword search within the app ・Recommended channels feature (organized by beginner/intermediate/advanced levels) ・Playback history to quickly access previously watched videos ● YouTube Search Feature ・Display thumbnails, titles, view counts, and video duration in a list ・Play videos directly from search results ・Search history feature to quickly recall past searches ● Customizable Settings ・Adjust caption font size ・Change playback speed (0.25x to 2x) ------------------------------------------- Recommended For ------------------------------------------- ・ Those who want to learn English enjoyably through YouTube videos ・ Those who find English captions alone difficult to understand ・ Those who want to study repeatedly at their own pace ・ Those who want to learn English from their favorite YouTubers' videos ・ Those who want to make effective use of commuting time ・ English learners of all levels, from beginner to advanced
Latest release
What’s New
We have decided to discontinue this app. Thank you.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 20, 2026 · 1:28 AM Free
Screenshots
