Brilliant is worth sampling if you want interactive problems in math, science or computing. Try a relevant free lesson at your level. Pay when the additional access or guidance addresses a real limit, not because a problem-first format is guaranteed to work better.
Learning Cadence editorial, , updated , 8 min readHow we work
Brilliant is worth sampling if you want interactive problems in math, science or computing. Try a relevant free lesson at your level. Pay when the additional access or guidance addresses a real limit, not because a problem-first format is guaranteed to work better.
This review uses the public product and access pages linked below. We did not run a comparative learning-outcome test or purchase every tier. Use the stated limits and the practical check to decide whether a sample is worth your time.
The short answer
Pay for a feature that serves your goal
Brilliant is worth sampling if you want interactive problems in math, science or computing. Try a relevant free lesson at your level. Pay when the additional access or guidance addresses a real limit, not because a problem-first format is guaranteed to work better.
Worth it if
You want to work through guided STEM problems.
The catalog and difficulty match your goal.
Free keys establish fit but limit study you actually want to do.
Not worth it if
Your subject is outside the available catalog.
You need current offline lesson access, which Brilliant says it does not offer.
A free source already meets your needs or you require a formal qualification.
What you actually get
Free tier, paid tier, and the wall between them.
The product, the paid upgrade, and who gets value from it.
01
Learning format
Interactive problems and explanations in supported STEM subjects.
02
Free access
Two daily keys, each opening one lesson or practice set, with sequential access and ads.
03
Premium
Unlimited lesson and practice access, jumping ahead, no ads and full Koji access in the current plan guide.
How the pricing works: Brilliant has a limited free plan and paid Premium options. Check the current price, full billing term, renewal and trial conditions. Two free keys are not necessarily two lessons because a key can open a practice set.
These choices serve different tasks. The comparison is about fit, not measured learning superiority.
Scroll across to compare every column.
Brilliant decision criteria
Your decision
Check in Brilliant
Compare with
Learning format
Interactive problems and explanations in supported STEM subjects.
Khan Academy: You want free core lessons, explanations and practice in a covered subject.
Before paying
Brilliant has a limited free plan and paid Premium options. Check the current price, full billing term, renewal and trial conditions. Two free keys are not necessarily two lessons because a key can open a practice set.
MIT OpenCourseWare: You want openly available academic course materials for independent study.
Useful next step
Try the bounded check below with access you already have.
Cadence offers a course around your goal. We make it; inspect its public examples first.
If it is not for you
What to use instead.
Each of these beats Brilliant for a specific job. Cadence is ours, and it only appears where it genuinely fits.
Scroll across to compare every column.
Alternatives to Brilliant
Instead use
When it is the better choice
Khan Academy
You want free core lessons, explanations and practice in a covered subject.
MIT OpenCourseWare
You want openly available academic course materials for independent study.
A qualified teacher
You need individual instruction or formal assessment.
Cadence
You want a course around another personal goal. This is our app. Cadence brings the best ideas from books, research, expert practice and standout articles into a course shaped to your goal.
Try the idea
Try a matched problem before comparing formats.
Original example: solve 3x + 3 = 18. Subtract 3 from both sides to get 3x = 15, then divide by 3: x = 5. Check by substituting: 3 × 5 + 3 = 18.
Now solve 3x + 3 = 24. The answer is x = 7. If you get stuck, identify whether the missing step is the meaning of an equation, inverse operations or arithmetic.
Try a relevant lesson and inspect whether its feedback resolves that gap. These are original sample problems, not a test conducted on Brilliant or Khan Academy. Both products can serve learners at different levels.
Before you choose
Pay for the specific access difference.
If the free lesson fits but daily keys prevent the study you plan, more access may be valuable. If the explanation does not fit, unlimited access may not solve that problem.
Brilliant currently requires an internet connection for lessons. A completion record or app score is not a substitute for an externally required qualification or a real task assessment.
Put it into practice
Start it today, one lesson at a time.
Cadence builds a course around your goal, with lessons, practice and saved progress. Learn at your own pace. Cadence is our app.
Free users receive two keys daily for lessons or practice sets. Premium changes access and other features.
Is Brilliant better than Khan Academy?
This review does not establish comparative effectiveness. Try the same topic and level, then compare the explanation, practice, access and cost.
Can I study Brilliant offline?
Its current help page says lessons cannot be downloaded for offline use. Check that limitation before subscribing for travel.
How were these recommendations checked?
We reviewed the linked public product and access pages on 29 September 2026. Features are vendor descriptions, not measured learning outcomes. Our examples are proposed checks, and current offers may differ.
See it in concrete terms
Explore example courses for your goal.
Explore these related Cadence pages for a public example and course scope. We make Cadence; a different product may fit your goal better.
Comparison of public product descriptions, access requirements and specific use cases. Original exercises are labeled and are not claimed as product tests.
What we checked directly: Public official pages reviewed on 29 September 2026. Price observations are dated listed offers; no account-specific checkout or paid subscription was purchased.
Limits of this review: We did not test every signed-in feature, assess every catalog course or measure comparative learner outcomes. Regional offers, product limits and eligibility can change.
