In terms of market share, Observer is clearly lagging behind, losing to PublishFlow in all segments.
Observer has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, Computer & Electronics, Internet & Telecom and 29 other categories.
PublishFlow hasn't got a lead over Observer in any websites category.
Observer is leading in most countries, including United States, Russia, China, Switzerland and 10 other countries.
PublishFlow is leading in Canada.