In terms of market share, PublishFlow is clearly lagging behind, losing to Zeta Search in all segments.
Zeta Search has better usage coverage in more websites categories. Including Business & Industry, Internet & Telecom, Finance, Health and 20 other categories.
PublishFlow is leading in Arts & Entertainment.
Zeta Search is leading in most countries, including United States, India, China, Brazil and 14 other countries.
PublishFlow is leading in Canada.