LimeSurvey (PHPSurveyor) is a free and open source on-line survey application written in PHP based on a MySQL, SQLite, PostgreSQL or MSSQL database, distributed under the GNU General Public License. Developed by Carsten Schmitz / The LimeSurvey team
License: Open Source
Poll.ly is ideal for quick, real-time polls and surveys with a focus on ease of use and social media integration. LimeSurvey, on the other hand, offers extensive customization and advanced reporting features, making it better suited for complex survey needs and detailed data analysis.