Translations:LimeSurvey PRO vs LimeSurvey CE/29/en
From LimeSurvey Manual
Generally, if you want to use LimeSurvey without any download or configuration, you should choose LimeSurvey Cloud. You can test it freely as long as you want and then purchase one of the subscription plans. However, if you have a running server infrastructure and want to integrate LimeSurvey into that, take a look at LimeSurvey CE. We also offer great LimeSurvey CE plans to enhance your installation with one-click updates and more custom themes.