BigDoor
4 websites

BigDoor is free to use

http://www.bigdoor.com/

BigDoor offers online publishers of any size the ability to create their own Gamified Rewards Program to help increase user loyalty and engagement to their site.

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, BigDoor is clearly lagging behind, losing to Echo in all segments.

Websites Categories

1 BigDoor has better usage coverage in more websites categories. Including Law & Government and Science & Education.

2 Echo is leading in Arts & Entertainment.

Geography

1 BigDoor is leading in most countries, including Australia and Taiwan.

2 Echo is leading in United States.