Alternatives to Sphere Contest for all platforms with any license

Platforms

Show 6 less popular platforms
  • hackerrank.com icon

    hackerrank.com

    A fun social platform for hackers to solve interesting puzzles, build quick hacks, code game bots and collaborate to solve real-world challenges.

    Free Web

  • Codility.com icon

    Codility.com

    The programmer testing solution that matches your job descriptions and helps you hire great developers faster.

    Commercial Mac Windows Web Android iPhone ... iPad

  • Codela icon

    Codela

    Screen technical skills automatically with online coding challenges. Save time, reduce recruitment costs and hire better developers.

    Commercial Web

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