OWA
69 websites

OWA costs money

http://www.oewa.at/

ÖWA provides comparable usage data for online offers through a standardized measurement procedure on an objective basis.

VS

Proof
3,690 websites

Proof offers both free and paid options

https://useproof.com/

Proof adds notifications to the bottom of web pages showing off recent customer activity. Assuming that when visitors see that others are buying they are statistically more likely to convert as well.

Market Share by Top Websites

1 Proof is leading in Top 100K Sites, Top 1M Sites and The Entire Web.

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

Websites Categories

1 Proof has better usage coverage in more websites categories. Including Business & Consumer Services, Computers Electronics & Technology, Health, Finance and 19 other categories.

2 OWA is leading in Reference Materials.

Geography

1 Proof is leading in most countries, including United States, Canada, Australia, India and 103 other countries.

2 OWA is leading in Austria.