
EloMath
Brilliant.org
Calcora.net
Khan Academy
Math Expert: Master Equations
Mathway
Tutorela
Complete and climb the global math leaderboard on Numberthon! Key features include ranked math matches, puzzles, and ELO style rankings.

GitHub
GitLab
BitBucket
openDesktop.org
Gitea
Launchpad.net
OSOR
The Complete Open-Source and Business Software Platform.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | numberthon.com | sourceforge.net |
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What each product offers, as listed by its team.


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Why this product is good
Recommended for
Overall verdict
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SourceForge is a great place for people who like open-source software. It offers a strong platform where you can find, review, and handle software, all while helping the open-source community.
SourceForge’s user interface works fine, but it could do with a modern overhaul to make it easier on the eye and give it a more intuitive feel. While it has a large community, SourceForge’s support is not as extensive...
Sourceforge has been around longer than most, and it has the projects to prove it. Lots of open source Linux, Windows and Mac projects are hosted on SF. It has a totally different project structure when compared with...
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Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
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Brilliant - Understand concepts and build your problem solving skills with thousands of free problems and examples in math, science, and engineering.
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Create, review and deploy code together with GitLab open source git repo management software | GitLab
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Practice olympiad-style math problems and compete against other users.
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Bitbucket is a free code hosting site for Mercurial and Git. Manage your development with a hosted wiki, issue tracker and source code.
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