Spark is a free software created by Adobe, who is the industry standard go to for visual design applications.
The Adobe Creative Cloud suite of tools includes Photoshop, which is by far the most popular graphic editor. Spark is freely available with premium features available for a fee. The rest of the Adobe tool set is available on a subscription basis and is not a freely available resource.
Spark is useful to create online and mobile graphic designs. Easily create beautiful images, videos, web pages, animated videos & social graphics with beautiful typography. A variety of free templates are available to help inspire your creations.