In terms of market share, Testnet is clearly lagging behind, losing to zapunited in all segments.
zapunited has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, Adult, Photography and 60 other categories.
Testnet hasn't got a lead over zapunited in any websites category.
zapunited is leading in most countries, including India, United States, Germany, Russia and 13 other countries.
Testnet is leading in Belgium.