Text the Mob is a polling that service that allows you to survey your audience through their cell phones. To use Text the Mob, create an account, write your questions and Text the Mob then provides your audience with a number to which they text their responses. Responses appear almost instantly on a large results screen suitable for projection. The one caveat about the free plan is that an advertisement is displayed on your results page.
Under the free plan, Text the Mob allows you to post up to three questions per poll and receive up to 50 responses. That is 18 more responses than Poll Everywhere provides with their free plan for K-12 teachers.
Applications for Education
Text the Mob could be a good no-cost or low-cost alternative to the proprietary clicker systems that some schools are purchasing. You can use surveys to gauge how your classes feel about their knowledge of a particular subject.
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Nine Survey Tools for Teachers and Students