In terms of market share, Simple AdServer is clearly lagging behind, losing to Six Apart Advertising in all segments.
Six Apart Advertising has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, News & Media, Humor and 55 other categories.
Simple AdServer is leading in Adult, Autos & Vehicles, Motorsports and Sports.
Six Apart Advertising is leading in most countries, including United States, United Kingdom, India, Bangladesh and 7 other countries.
Simple AdServer hasn't got a lead over Six Apart Advertising in any country.