Koji by Brilliant

Koji’s adaptive engine tracks every interaction to build a precise model of what the learner has mastered and where gaps remain. It then constructs practice sessions that target those specific weaknesses, reinforcing concepts that need more work while accelerating through material already understood. The pace adjusts dynamically: Koji speeds up when the learner demonstrates readiness and slows down to provide extra support when needed. This personalized approach is similar to having a tutor who knows exactly your learning history. For instance, after mastering Arithmetic Thinking, the system might introduce Proportional Reasoning at a faster pace, but if the learner struggles with a subtopic like fractional scaling, it offers additional visual exercises. This continuous assessment eliminates wasted time on review and ensures steady, efficient progress.

Overall, Koji combines adaptive learning technology with motivational gamification elements to maintain engagement. The platform uses streaks, levels, and daily goals to turn learning into a rewarding challenge rather than a chore. Learners progress through a structured curriculum that spans math (from Arithmetic Thinking to Calculus), computer science (from Thinking in Code to Neural Networks), science (including Quantum Computing and Digital Circuits), and data analysis (from Exploring Data Visually to Regression). Each course is crafted by award-winning teachers and subject-matter experts from top institutions, ensuring that content is both accurate and pedagogically sound. The workflow is simple: a learner opens the app, selects a topic, and immediately enters an interactive session where Koji guides them. The system seamlessly adapts, provides feedback, and tracks progress across sessions, creating a continuous learning journey that fits into daily life.

Concrete use cases from real users illustrate Koji’s impact. A 7th grader struggling with slope in class reported that it finally clicked after just 20 minutes with Koji, demonstrating the speed of the interactive approach. A parent of a 16-year-old was surprised when their son explained how to write algorithms at dinner, showing how Koji deepens understanding beyond surface-level memorization. A 10th grader learned the basics of trigonometry in 12 days and became the best in their class, highlighting the accelerated progress possible with adaptive pacing. A parent of a 10-year-old often hears 'Never mind, Mom, I got it!' when their child works through difficulties independently, showcasing the confidence Koji builds. An algebra teacher observed that students enthusiastically engage with math outside of class, even asking to do more. These outcomes consistently point to increased comprehension, self-reliance, and academic achievement across age groups.

Koji by Brilliant is designed for a wide range of learners: students from grade 5 through college, parents seeking effective after-school supplements, homeschoolers looking for a complete curriculum, and teachers who want to enhance classroom instruction. The platform is available on iOS and Android via the App Store and Google Play, making it accessible on any device. While the specific pricing is not detailed on the site, Brilliant offers subscription plans for individual learners and gift options. The curriculum is built by award-winning educators from MIT, Harvard, Stanford, Cornell, and Caltech, ensuring world-class quality. In summary, Koji provides a world-class personal tutor in your pocket—adaptive, interactive, and always available. It replaces the hassle of traditional tutoring with an engaging, effective learning experience that fits any schedule and helps every learner master math and coding.