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, Business & Industry and 27 other categories.
Slashdot Widget is leading in People & Society, Religion & Spirituality, Clothing and Consumer Electronics.
Opta Widget is leading in most countries, including Spain, United Kingdom, Italy, Australia and 44 other countries.
Slashdot Widget hasn't got a lead over Opta Widget in any country.