If you want to use WOW.js to develop commercial sites, themes, projects, and applications, the Commercial license is the appropriate license. With this option, your source code is kept proprietary. Purchase a WOW.js Commercial License at uplabs.com/posts/wow-js-commercial
Open source license
If you are creating an open source application under a license compatible with the GNU GPL license v3, you may use this project under the terms of the GPLv3.
Commercial license
If you want to use WOW.js to develop commercial sites, themes, projects, and applications, the Commercial license is the appropriate license. With this option, your source code is kept proprietary. Purchase a WOW.js Commercial License at uplabs.com/posts/wow-js-commercial
Open source license
If you are creating an open source application under a license compatible with the GNU GPL license v3, you may use this project under the terms of the GPLv3.