Features
Interactive visual problem-solving lessons
AI tutor (Koji) adapts to individual knowledge
Real-time feedback and guided hints
Adaptive practice sets targeting weak areas
Spaced repetition and retrieval practice
Progress tracking with streak and level system
Curated learning paths for math, coding, science
Subjects: arithmetic, algebra, calculus, probability, statistics, Python, neural networks, data analysis
Mobile app (iOS and Android) for learning on the go
Daily goals and motivational features
WASC accredited supplementary education program
Built by learning experts from MIT, Harvard, Stanford
Over 10 million learners worldwide
100,000+ five-star app store reviews
Curriculum covering grade 5 to college-level topics
Real-time adaptation to child's ability
Immediate evaluation and feedback
Covers K-5 math: counting, arithmetic, fractions, algebraic thinking
Multisensory manipulatives (blocks, number lines)
Gamified progression with rewards
Reads instructions aloud for emerging readers
Warm, patient, encouraging AI persona
Progress reports for parents
One-on-one attention like a real teacher
Available on tablet and desktop
7-day free trial, no credit card required
Family plan supports up to 10 students
Family Lifetime payment option available
Built from SpaceX's experimental school methodology
Flashcards for times tables practice (no signup)