Mobirise is an easy website builder - just drop site elements to your page, add content and style it to look the way you like.
All sites you make with Mobirise are mobile-friendly. You don't have to create a special mobile version of your site.
Mobirise offers many site blocks in several themes, and though these blocks are pre-made, they are flexible.
Mobirise gives you the freedom to develop as many websites as you like given the fact that it is a desktop app.