Market Share by Top Websites

1 Emma is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Retention Science is clearly lagging behind, losing to Emma in all segments.

Websites Categories

1 Emma has better usage coverage in more websites categories. Including Science & Education, Community & Society, Health, Business & Consumer Services and 15 other categories.

2 Retention Science is leading in Lifestyle, E-commerce & Shopping, Games and Adult.


1 Emma is leading in most countries, including United States, Canada, United Kingdom, India and 58 other countries.

2 Retention Science is leading in Hong Kong, Italy, Colombia, New Zealand and 9 other countries.