In terms of market share, PayZen is clearly lagging behind, losing to Quaderno in all segments.
PayZen has better usage coverage in more websites categories. Including Shopping, Business & Industry, Programming, Internet & Telecom and 5 other categories.
Quaderno is leading in Software.
PayZen is leading in most countries, including France, Belgium, French Polynesia, Australia and 3 other countries.
Quaderno is leading in United States and Spain.