Coinhive Captcha
236 websites

Coinhive Captcha is free to use

https://coinhive.com/documentation/captcha

Coinhive is proof of work captcha widget, alternative to Google's reCaptcha. This prevents spam at an inconvenience that is comparable to a classic captcha and provides the added benefit of earning money from user's' form submission.

VS

Sweet Captcha
70 websites

Sweet Captcha is free to use

http://sweetcaptcha.com

sweetCaptcha is a human friendly illustrated captcha focused on enhancing the user experience on your website.

Market Share by Top Websites

2 Coinhive Captcha is leading in Top 100K Sites and Top 1M Sites.

Websites Categories

1 Coinhive Captcha has better usage coverage in more websites categories. Including Computers Electronics & Technology, Games, Arts & Entertainment, Gambling and 11 other categories.

2 Sweet Captcha is leading in Food & Drink, Community & Society, Health and Travel & Tourism.

Geography

1 Coinhive Captcha is leading in most countries, including United States, India, France, Spain and 50 other countries.

2 Sweet Captcha is leading in Canada, Albania, Australia, Denmark and 5 other countries.