In terms of market share, Ion Interactive is clearly lagging behind, losing to ReadZ in all segments.
Ion Interactive has better usage coverage in more websites categories. Including Business & Industry, Games, Video Games, Health and 33 other categories.
ReadZ hasn't got a lead over Ion Interactive in any websites category.
Ion Interactive is leading in most countries, including United States, Italy, Mexico, Canada and 14 other countries.
ReadZ is leading in Belgium and Guatemala.