Discourse
trend
7,414 websites

Discourse is free to use

http://www.discourse.org/

Discourse is the 100% open source discussion platform built for the next decade of the Internet. It works as a mailing list, a discussion forum and a long-form chat room.Discourse is a simple, flat forum, where replies flow down the page in...

VS

vBulletin 4.x
trend
3,378 websites

vBulletin 4.x costs money

http://www.vbulletin.com

vBulletin is a professional, affordable community forum solution. Thousands of clients, including many industry leading blue chip companies, have chosen vBulletin - It's the ideal choice for any size of community.

Market Share by Top Websites

1 Discourse is leading in Top 100K Sites and The Entire Web.

2 vBulletin 4.x is leading in Top 10K Sites and Top 1M Sites.

Websites Categories

1 Discourse has better usage coverage in more websites categories. Including Computers Electronics & Technology, Games, Science & Education, Finance and 9 other categories.

2 vBulletin 4.x is leading in Vehicles, Sports, Adult, Hobbies & Leisure and 7 other categories.

Geography

1 Discourse is leading in most countries, including United States, Germany, United Kingdom, India and 108 other countries.

2 vBulletin 4.x is leading in Russia, Vietnam, Italy, Iran and 27 other countries.