1
Foundation is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.
2
In terms of market share, UIKit is clearly lagging behind, losing to Foundation in all segments.
1
Foundation has better usage coverage in more websites categories. Including Science & Education, Computers Electronics & Technology, Health, Arts & Entertainment and 20 other categories.
2
UIKit hasn't got a lead over Foundation in any websites category.
1
Foundation is leading in most countries, including United States, Germany, United Kingdom, Canada and 143 other countries.
2
UIKit is leading in Russia, China, Argentina, Iran and 12 other countries.