SpecialistLearn to code free with hands-on lessons and instant playgrounds
Brilliant records 2,426,610 monthly visits with -11.9% month-over-month growth and Freemium pricing. Prepform records 0 monthly visits with 0% growth and Freemium pricing.

Adaptive test prep that tells you what to study, how long, and when you have mastered it.
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | brilliant.org | prepform.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 2.43M (2,426,610) | 0 (0) |
| MoM Traffic Delta |
| -326.35K (-11.9%) |
| 0 (0%) |
| Primary Market & Share | 🇺🇸 United States (41.9%) | 🌐 Global (—) |
|---|
| Direct Visits / mo | 1.2M | 0 |
|---|
| User Rating | 4.6 | 4.1 |
|---|
| Supported Platforms | Website | Website |
|---|

Interactive math, coding and AI tutoring you learn by doing
Learn math, science, CS and AI through short, visual exercises that build intuition step by step rather than passive video watching.
A visual, interactive tutor that works on a shared canvas, asks guiding questions and gives hints without simply revealing the answer.
Quizzes and reviews adapt to your level, tracking what you have mastered and resurfacing topics that still need work.
Write and run real code to learn programming logic, algorithms, data structures and debugging skills relevant to the AI era.

Adaptive test prep that tells you what to study, how long, and when you have mastered it.
The Blend AI engine recommends exactly what to study, how long to spend on it, and when you have genuinely mastered a topic based on your own performance data.
Machine learning and spaced repetition decide which questions and mistakes to bring back, and at what interval, so review lands when it is most useful.
Charts, score prediction, and performance breakdowns expose the topics and question types where you are losing points.
Work through thousands of questions modeled on real exams, with immediate feedback and explanations that reinforce core concepts.
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