Opta Widget is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Opta Widget has better usage coverage in more websites categories. Including Sports, Soccer, News & Media, Arts & Entertainment and 43 other categories.
Slashdot Widget is leading in Clothing, Religion & Spirituality, Career & Education, Education and 2 other categories.
Opta Widget is leading in most countries, including United Kingdom, Spain, Italy, United States and 55 other countries.
Slashdot Widget hasn't got a lead over Opta Widget in any country.