Adwit
2 websites

Adwit offers both free and paid options

http://www.adwitserver.com/

Adwit's exclusive ad optimization system (patent pending) combines contextual and behavioural analysis technologies, optimizing each ad zone with real time analysis of user profiles to match individual profiles with optimal display ads. ...

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Merchenta
4 websites

Merchenta is free to use

http://www.merchenta.com/

CPA retargeting company with global reach for risk-free remarketing ad campaigns. Optimising re-targeting & re-marketing across USA, Europe & UK.

Market Share by Top Websites

2 In terms of market share, Adwit is clearly lagging behind, losing to Merchenta in all segments.

Websites Categories

1 Merchenta has better usage coverage in more websites categories. Including Lifestyle and E-commerce & Shopping.

2 Adwit is leading in Food & Drink.

Geography

1 Merchenta is leading in most countries, including Australia, China, Ecuador and United States.

2 Adwit is leading in Brazil and Spain.