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

WP reCAPTCHA
5,969 websites

WP reCAPTCHA is free to use

http://wordpress.org/plugins/wp-recaptcha

Plugin for using reCAPTCHA in WordPress.

Market Share by Top Websites

1 WP reCAPTCHA is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Coinhive Captcha is clearly lagging behind, losing to WP reCAPTCHA in all segments.

Websites Categories

1 WP reCAPTCHA has better usage coverage in more websites categories. Including Computers Electronics & Technology, Science & Education, Finance, Health and 19 other categories.

2 Coinhive Captcha is leading in Gambling.

Geography

1 WP reCAPTCHA is leading in most countries, including United States, Brazil, Italy, United Kingdom and 115 other countries.

2 Coinhive Captcha is leading in Myanmar and Jordan.