Zoho Challenge is described as 'online quiz maker that packs powerful set of features including variety of question types, multiple question bank support, user roles (evaluators / candidates), on-demand analytics and more'. There are more than 25 alternatives to Zoho Challenge, not only websites but also apps for a variety of platforms, including Windows, iPhone, iPad and Mac. The best alternative is LimeSurvey, which is both free and Open Source. Other great sites and apps similar to Zoho Challenge are SurveyMonkey (Freemium), ProProfs Quiz Maker (Freemium), Topgrade Quiz Maker (Freemium) and SurveyLab (Paid).
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eSurv.org is free hosted survey service that is provided by research institutions. It includes many standard features such as results download and multiple question types. There are no restrictions or limits.