diff.io vs Obvious.io: What are the differences?
diff.io: A simple API to quantify and visualize differences. Awareness is essential to success, but being aware at scale is hard. Especially in an age of rich infographics and process generated media. Leverage the diff.io API to make awareness at scale easy. Track any page, at any frequency; Obvious.io: Get notified the instant your website visibly changes. Obvious.io is a visual monitoring service for websites. Obvious.io uses computer vision to 'see' your website in the same way your customers do.
diff.io and Obvious.io can be primarily classified as "Visual Website Monitoring" tools.