Pricing
Core adaptive engine free forever · Unlock AI practice to speed up mastery
Free
Core loop, prove the value
Free
Free forever
- 20-question adaptive assessment
- 10 adaptive questions per day
- Error attribution analysis
- Spaced review queue
- 4-dimension skill radar
- AI practice conversations
- Scenario simulation tasks
- Unlimited practice
Recommended
Plus
Level up with an AI tutor
$6/month
- 20-question adaptive assessment
- 10 adaptive questions per day
- Error attribution analysis
- Spaced review queue
- 4-dimension skill radar
- AI practice conversations
- Scenario simulation tasks
- Unlimited practice
Pro
Full features, faster mastery
$12/month
- Unlimited adaptive practice
- AI practice conversations
- Scenario simulation
- Deep error attribution + trends
- Advanced forgetting-curve model
- Learning report export
- Priority content updates
- Dedicated learning path
Core adaptive engine free forever · Unlock AI practice to speed up mastery