Question 1

What YouTube videos can I use?

Accepted Answer

Any YouTube video with English audio. No video types blocked. Content with clear spoken English works best for learning — try talks, interviews, vlogs, or educational content.

Question 2

How does AI subtitle generation work?

Accepted Answer

We use advanced speech-to-text AI models to transcribe audio, then apply AI to generate synchronized bilingual subtitles in your chosen native language. Accuracy is typically 95%+.

Question 3

Is a credit card required for the free plan?

Accepted Answer

No. The free plan lets you try 3 videos per day with full bilingual subtitles and basic word definitions. No credit card needed.

Question 4

Can I export my vocabulary?

Accepted Answer

Yes — Pro users get vocabulary book access, and Max users can export in CSV and Anki formats for use with other study tools and spaced repetition systems.

Question 5

What languages are supported?

Accepted Answer

Currently: Chinese, Japanese, Korean, Spanish, French, German, and Portuguese. We're actively adding more based on user demand.

Question 6

Can I cancel my subscription anytime?

Accepted Answer

Absolutely. No long-term contracts. Cancel with one click from your account settings, and you'll retain access until the end of your billing period.