


Overview
Master languages on YouTube & Bilibili with AI subtitles, cloze tests, and instant translation.
🚀 LangKey 2.0 is out! The ultimate AI tool for language learners. 【AI Subtitles】Smart sentence analysis for better understanding. 【Practice Modes】Master listening with Cloze tests, dictation, and shadowing. 【Instant Lookup】Hover to translate and sync words to your vocabulary book. 【Multi-Engine】Supports custom translation engines and immersive full-screen learning.
Details
- Version2.2.2
- UpdatedApril 30, 2026
- Size1.78MiB
- Languages44 languages
- DeveloperWebsite
Email
langkeyweb@gmail.com - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
LangKey: AI Video Language Learning (YouTube/BiliBili) has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
LangKey: AI Video Language Learning (YouTube/BiliBili) handles the following:
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
Support
For help with questions, suggestions, or problems, visit the developer's support site