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Khan Academy vs Duolingo

Side-by-side comparison of two indie startups from the Startup Spotlight directory.

Option A
Khan Academy

Khan Academy

Education

For every student, every classroom. Real results.

Khan Academy provides free, world-class education in math, science, and more to anyone, anywhere — used by 130M+ learners.

Founder
Sal Khan
Founded
2008
Team
500+
Listing
Free (nofollow)
Listed
May 2026
View Khan Academy →
Option B
Duolingo

Duolingo

Education

Learn a language for free.

Duolingo is the world's most popular language-learning app, with gamified lessons in 40+ languages and 500M+ learners.

Founder
Luis von Ahn
Founded
2011
Team
500+
Listing
Free (nofollow)
Listed
May 2026
View Duolingo →

See more alternatives

Khan Academy alternatives →Duolingo alternatives →