SpecialistFocuses specifically on interactive programming and coding lessons, whereas Brilliant covers broad STEM and math concepts.
Brilliant records 2,426,610 monthly visits with -11.9% month-over-month growth and Freemium pricing. Language Reactor records 1,878,769 monthly visits with +0.6% growth and Freemium pricing.
Learn languages from Netflix, YouTube, and real-world texts with dual subtitles and AI
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | brilliant.org | languagereactor.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 2.43M (2,426,610) | 1.88M (1,878,769) |
| MoM Traffic Delta |
| -326.35K (-11.9%) |
| +10.73K (+0.6%) |
| Primary Market & Share | 🇺🇸 United States (41.9%) | 🇺🇸 United States (13.3%) |
|---|
| Direct Visits / mo | 1.2M | 1.45M |
|---|
| User Rating | 4.6 | 4.4 |
|---|
| 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.
Learn languages from Netflix, YouTube, and real-world texts with dual subtitles and AI
View your target language together with a translation, pause, replay single lines, and jump back to the previous subtitle with a hotkey.
Hover or click any subtitle word to see definitions, part of speech, and pronunciation without leaving the video.
Automatically saves looked-up words and phrases, then quizzes you with the original context to build durable recall.
Bring the same translation and lookup workflow to ebooks, PDFs, articles, and other web pages.
SpecialistFocuses specifically on interactive programming and coding lessons, whereas Brilliant covers broad STEM and math concepts.

SpecialistYour personal AI tutor for every subject, from notes to exam day.

SpecialistProvides deep interactive training for data science and programming, but omits foundational math and general science topics.

Provides powerful bilingual translation across streaming video and web pages, though less focused on dedicated flashcard workflows.

SpecialistAI-powered A Level and GCSE courses with a top-grades-or-refund guarantee
SpecialistLearn Linux, DevOps, and cybersecurity by doing — inside real online labs.

SpecialistLearn a new language by talking to lifelike AI tutors

Excels at step-by-step homework solving and AI tutoring, but provides less structured visual concept-building courses.
Offers similar dual-subtitles and video translation for Netflix and YouTube, but with a more modern AI interface.

SpecialistProvides adaptive daily math and logic practice for children, but has less emphasis on advanced visual science lessons.

SpecialistSpeak a new language from day one with human-like AI and expert human tutors

Offers Socratic AI tutoring and problem guidance, but lacks Brilliant's signature interactive visual math and science puzzles.

Provides powerful bilingual translation across streaming video and web pages, though less focused on dedicated flashcard workflows.
SpecialistLearn Linux, DevOps, and cybersecurity by doing — inside real online labs.
SpecialistLearn a new language by talking to lifelike AI tutors
Excels at step-by-step homework solving and AI tutoring, but provides less structured visual concept-building courses.
Offers similar dual-subtitles and video translation for Netflix and YouTube, but with a more modern AI interface.
SpecialistSpeak a new language from day one with human-like AI and expert human tutors
Offers Socratic AI tutoring and problem guidance, but lacks Brilliant's signature interactive visual math and science puzzles.