Translations:Quick start guide - LimeSurvey 3.0+/4/en
From LimeSurvey Manual
LimeSurvey is a free open source online survey application written in PHP and distributed under the GNU General Public License 2. The software enables users to create and publish online surveys, collect responses, create statistics, and export the results to other applications. You can install LimeSurvey on your own server (LimeSurvey Community Edition) or use our hosting service (LimeSurvey Cloud).