apptap
14 websites

apptap is free to use

http://www.apptap.com/

AppTap is an app recommendations and advertising network, helping consumers and app developers cut through the clutter of the app stores. Leading mobile and web publishers, carriers, and devices use AppTap to boost user engagement and monet...

VS

Echo
2 websites

Echo offers both free and paid options

http://www.aboutecho.com/

Echo is the premier provider of real-time, social products.

Market Share by Top Websites

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

Websites Categories

1 apptap has better usage coverage in more websites categories. Including Food & Drink, Gambling and Hobbies & Leisure.

2 Echo is leading in Arts & Entertainment.

Geography

1 Echo is leading in most countries, including United States.

2 Echo is leading in United States.