The document discusses and compares different types of marketing apps suitable for Instagram business use, including photo editing apps (Snapseed and VSCO), scheduling apps (Later and Hootsuite), and content apps (Layout and StoryLuxe). Snapseed and VSCO allow editing of photos before posting on Instagram. Later and Hootsuite enable scheduling posts to be published at later times. Layout creates collages from multiple photos while StoryLuxe applies filters and themes to Instagram Stories.