Foursquare Widget
128 websites

Foursquare Widget is free to use

https://developer.foursquare.com/

The foursquare API gives you access to all of the data used by the foursquare mobile applications, and, in some cases, even more.

VS

Mopinion
32 websites

Mopinion costs money

http://mopinionlabs.co.uk/

Collect, analyse and manage customer feedback from every touch point.

Market Share by Top Websites

1 Mopinion is leading in Top 100K Sites and Top 1M Sites.

2 In terms of market share, Foursquare Widget is clearly lagging behind, losing to Mopinion in all segments.

Websites Categories

1 Foursquare Widget has better usage coverage in more websites categories. Including Arts & Entertainment, Travel & Tourism, Computers Electronics & Technology, News & Media and 11 other categories.

2 Mopinion is leading in Business & Consumer Services, Finance and Jobs & Career.

Geography

1 Foursquare Widget is leading in most countries, including United States, Russia, Spain, Italy and 28 other countries.

2 Mopinion is leading in Netherlands, France, Japan, Iran and 3 other countries.