Open beta
Liu is currently free to explore
Liu is being released as a product experiment focused on learning quality, usability, and real learner feedback.
Paid purchases are not available during Liu's open beta.
Core learning does not require a paid plan. Existing and admin-granted access tiers remain recognized for testing selected entitlement behavior.
Current release
Open Beta
The core Liu learning experience is available without payment while the product is being tested and refined.
- HSK vocabulary learning tracks
- Spaced repetition and adaptive review
- Learning progress and mastery tracking
- Streaks, Jade, Frozen Flames, and learner tools
Experimental entitlement
Pro
Pro remains an access tier inside Liu so entitlement and quality-of-life behavior can continue to be tested.
- Selected Pro quality-of-life behavior
- Extended streak recovery where enabled
- Testing of future entitlement rules
- Core learning remains available without Pro
Recognition tier
Founder
Founder accounts remain supported for entitlement testing, recognition, and the access architecture already built into Liu.
- Founder recognition
- Pro-level entitlement where enabled
- Founder Credits participation
- No public Founder sales during open beta
Access tiers remain part of Liu's product architecture during testing, but paid checkout is disabled for the current open-beta release.