In terms of market share, Simple AdServer is clearly lagging behind, losing to Testnet in all segments.
Testnet has better usage coverage in more websites categories. Including Business & Industry, Autos & Vehicles, Sports, Shopping and 11 other categories.
Simple AdServer is leading in Computer & Electronics, Sports, Adult, Arts & Entertainment and 4 other categories.
Simple AdServer is leading in most countries, including Hungary and Chile.
Testnet is leading in Belgium.