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Brilliant
Brilliant · San Francisco, California, United States · founded 2012
What it is
Brilliant is an interactive STEM learning service with courses in math, coding, data science, science, technology, and AI. Learners solve problems, explore visual models, and receive immediate feedback. Most courses include Koji, a digital tutor that guides learners through reasoning step by step; free users get a limited preview, while Premium provides full access. Free accounts can access all courses but are limited to two lessons per day in sequence and see occasional ads. Premium includes unlimited lessons and practice, the option to jump to any lesson, and an ad-free experience. Individual Premium is $20 a year, billed as one payment and renewed annually; Family Premium is $40 a year, also billed as one payment and renewed annually, with six seats included. Eligible K–12 teachers and students may receive free Premium through an application-reviewed educator program. It supports Google Classroom roster syncing and lesson sharing. Educator progress reports show completion and time spent, but not formal grades or answer-level correctness. Brilliant is available on Android, iOS, and web, and lessons require an internet connection.
For and against
For
- Courses span math, coding, science, technology, and AI.
- Koji guides learners through reasoning in most courses.
- Premium includes unlimited lessons and practice.
- Educator access supports Google Classroom roster syncing.
Against
- Free accounts are limited to two lessons per day.
- Lessons cannot be downloaded for offline use.
- Educator reports do not show formal grades.
The verdict
Brilliant offers guided, interactive STEM courses, with a free tier and broader Premium access. Learners should consider the daily free limit and internet requirement; educator reports are progress-focused rather than grading tools.
Who it suits
Brilliant suits learners exploring STEM subjects through interactive problem solving. Eligible K–12 teachers and students may qualify for the educator program, while families can choose a six-seat Premium plan.
Plans and prices
Free
2 lessons or practice sets per day
Read 23 Sep 2026 · brilliant.org
Group Annual
3 seats included · 3 to 50 people · $10.10/month for each extra seat
Read 23 Sep 2026 · brilliant.org
Individual Premium
Unlimited access to all courses · unlimited lessons and practice · Koji tutor · ad-free
Read 15 Oct 2026 · brilliant.org
Family Premium
6 seats included · unlimited access to all courses · Koji tutor · ad-free
Read 15 Oct 2026 · brilliant.org
Individual Premium (annual)
Unlimited access to all courses · No ads · One subscription across devices
Read 4 Oct 2026 · brilliant.org
Family Premium (annual)
6 seats included · Unlimited access to all courses · No ads
Read 4 Oct 2026 · brilliant.org
On the record
- Accreditation
- Brilliant says it is accredited by ACS WASC, but it does not grant degrees, diplomas, transcripts, certificates or transferable academic credit.brilliant.org · read 15 Oct 2026
- API and integrations
- Brilliant’s public help and product pages document browser, iOS and Android access but do not describe a public API, SDK or integration framework.brilliant.org · read 15 Oct 2026
- Automatic renewal
- Subscriptions continue automatically for an equivalent period until cancelled, and cancellation must be submitted at least one business day before the term ends.brilliant.org · read 15 Oct 2026
- Company headquarters
- Crunchbase and aVenture list headquarters in San Francisco, California, United States.crunchbase.com · read 15 Oct 2026
- Company legal name
- Crunchbase lists the legal name as Brilliant Worldwide, Inc., a private for-profit company.crunchbase.com · read 15 Oct 2026
- Company size
- Crunchbase lists 51–100 employees, while aVenture reports 122 current employees.crunchbase.com · read 15 Oct 2026
- Course breadth
- The Premium page advertises more than 40 interactive courses spanning math, computer science, science and data analysis.brilliant.org · read 15 Oct 2026
- Educators
- Eligible K–12 teachers and their students may receive free Premium access through Brilliant for Educators, subject to application review.brilliant.org · read 4 Oct 2026
- Free access
- Free accounts can access all courses, complete up to two lessons per day in sequence, see occasional ads, and use a limited Koji preview.brilliant.org · read 4 Oct 2026
- Free-plan limits
- Free accounts can access course content but are limited to two concepts per day, sequential progression, occasional ads and a limited Koji preview.brilliant.org · read 15 Oct 2026
- Funding
- Crunchbase lists Brilliant as a Series C company with eight funding rounds and Reach Capital as a Series C lead investor, but obscures the dollar totals.crunchbase.com · read 15 Oct 2026
- Gamification
- The service includes daily streaks, competitive leagues and progress tracking to encourage continued study.brilliant.org · read 15 Oct 2026
- Integration
- The educator program supports Google Classroom roster syncing and sharing lesson links through Google Classroom or another learning management system.brilliant.org · read 4 Oct 2026
- Interactive teaching
- Lessons use hands-on problems, visual models and immediate feedback instead of relying mainly on videos or dense text.brilliant.org · read 15 Oct 2026
- Koji tutor
- Koji is an AI tutor embedded in topics that can see the learner’s interactive work and guide reasoning step by step without simply giving answers.brilliant.org · read 15 Oct 2026
- Learning format
- Learners solve hands-on problems, explore visual models, and receive immediate feedback.brilliant.org · read 4 Oct 2026
- Learning Paths
- Personalized Learning Paths organize related courses into suggested sequences that adapt to learner pace and skill.brilliant.org · read 15 Oct 2026
- Licence
- The terms grant only a personal, non-transferable, non-exclusive licence to use downloaded software and prohibit copying or distributing service content, indicating a proprietary service rather than open-source software.brilliant.org · read 15 Oct 2026
The review
Brilliant is a problem-led learning service spanning STEM subjects, with interactive exercises and step-by-step tutoring in most courses. It is best suited to independent learners who want to build understanding through practice. The free tier offers a way to explore, but its daily cap and online-only lessons limit how far learners can go without Premium.
Overview
Courses cover math, coding, data science, science, technology, and AI.
Koji, the digital tutor built into most courses, guides learners through reasoning step by step. Free users receive only a limited preview; Premium unlocks full access. Brilliant is not a credential pathway: it offers no completion certificates or degree programs.
Key features
Practice and tutoring
Free accounts can access all courses, but may complete only two lessons or practice sets per day and must follow the sequence. That is enough to sample subjects or keep up a brief routine, but it can break momentum for learners who want to work through a topic in one sitting. Premium removes the daily limit, allows jumping to any lesson, removes ads, and includes full Koji access—useful for learners who want control over pace and tutoring throughout a course.
Educator tools
Eligible K–12 teachers and their students may receive free Premium access through Brilliant for Educators, subject to application review. Teachers can sync rosters with Google Classroom and share lesson links through Google Classroom or another learning management system. Progress reports track lesson completion, time spent, course progress, and completion dates. They do not report answer-level correctness or formal grades, so this is a progress-monitoring aid rather than a grading system.
For student privacy, Brilliant for Educators says it complies with COPPA, FERPA, and GDPR, and does not sell student data or use it for marketing. Brilliant also describes a written information security program with organizational, technical, and administrative safeguards, while cautioning that internet transmissions cannot be guaranteed completely secure.
Pricing
Brilliant uses a freemium subscription model. Free costs nothing and includes access to all courses, up to two lessons or practice sets per day, occasional ads, and a limited Koji preview. It is the sensible starting point for casual exploration, but the cap and sequential access make it restrictive for intensive study.
Individual Premium (annual) costs $20 a year, billed as one $20 payment, and renews annually; it can be canceled anytime. It includes unlimited access to all courses, no ads, and one subscription across devices. This is the fit for an individual who wants fewer interruptions and unrestricted progress. Family Premium (annual) costs $40 a year, billed as one $40 payment, renews annually, and can be canceled anytime. It includes six seats, unlimited access to all courses, and no ads, making it the relevant option for a household needing multiple accounts.
Group Annual has custom pricing, includes three seats, and supports groups of 3 to 50 people; each additional seat costs $10.10/month. It is aimed at groups that need shared access, though the custom base price means it is harder to compare directly with individual and family plans. Brilliant also offers enterprise plans.
Platforms
Brilliant is available on Android, iOS, and the web. An internet connection is required, and lessons cannot be downloaded for offline use. That makes it a poor choice for commutes or study settings with unreliable connectivity. Account, subscription, and technical support requests go to [email protected], with replies within 48 hours.
Who it's for
Brilliant suits self-directed learners who want to practice STEM concepts with visual models, immediate feedback, and guided reasoning. The free tier is appropriate for light exploration; Premium is better for regular learners who need unlimited lessons or full Koji access. Educators may find the classroom sharing and progress reports useful, but not if they need answer-level assessment or formal grades.
Pros and cons
- Strength: Practice-centered courses. Problems, visual models, and immediate feedback make active learning the service's central format across several STEM fields.
- Strength: Koji guidance. Step-by-step reasoning support is built into most courses, with full access included in Premium.
- Strength: Educator access and sharing. Eligible K–12 teachers and students may qualify for free Premium, and teachers can sync rosters or share lessons through classroom tools.
- Limitation: Free-plan pace. Two lessons or practice sets per day, in sequence, can constrain learners who want to make faster progress.
- Limitation: No offline study or credentials. Internet access is required, lessons cannot be downloaded, and courses do not lead to certificates or degrees.
- Limitation: Educator reports stop short of assessment. Reports track activity and progress, not correctness or grades.
Alternatives
For a broader comparison, browse Math Learning Apps, MOOC Platforms, or Learning Gamification Software.
MobyMax is another freemium option with a free educator version and access across Android, iOS, macOS, web, and Windows. Consider it if that wider platform coverage or educator-focused free tier is a closer fit.
Monster Math is a freemium alternative with a free trial and a $59.99 a year Premium plan billed yearly. It may suit readers looking for a math-focused app with a trial before committing.
SplashLearn offers a free plan and trial, with a family subscription at $7.49 a month billed annually for a Preschool-to-Grade 5 curriculum library and premium live classes. Choose it when that school-age range and live-class offering matter more than Brilliant's broader STEM course mix.
Waggle Math is a paid option for Grades -1–8, with online practice and Skill Boosts; final pricing depends on the account and contract. It is worth considering for that grade range and practice format.
Boddle offers a free plan, with Premium at $4.08 a month billed annually or $9.99 a month billed monthly. It is an alternative for readers comparing a free option and two billing terms.
Kaer Math has a free plan covering every grade and topic, with five lives per day, an adaptive path, hints, and a daily challenge. Choose it if those game-like progression features are more important than Brilliant's course-led approach.
GeoGebra is another freemium option for readers comparing math software.
Prodigy Math offers a free plan and paid Core and Plus options. It is another option to consider when comparing math learning services.
Verdict
Choose Brilliant if you are a self-directed learner who wants interactive STEM practice, visual explanations, and guided reasoning, and you can study online.