Ultimate Math Captcha is a 100% effective captcha for WordPress. Plugin can add math captcha to WordPress login, registration, lost password, comments, WooCommerce, Easy Digital Downloads and bbPress form(s).

Plugin support mutliple Math Captcha on same page.

Supported Plugins:

• WordPress – Support on Login, Register, Reset password and Comments form.
• WooCommerce – Support on Login, Register and Checkout page.
• Easy Digital Downloads – Support on Login, Register and Checkout page.
• bbPress – Support on New topic and Reply to topic form.
• Contact Form 7 – Support on any form

Features:

• Easy to customize, setup and use.
• Add Math Captcha on WordPress login, register, lost password and comment form.
• Add Math Captcha on WooCommerce login, register, lost password form.
• Add Math Captcha on WooCommerce Checkout page with different position.
• Add Math Captcha on Easy Digital Downloads login and register form.
• Add Math Captcha on Easy Digital Downlaods Checkout page.
• Add Math Captcha on bbPress new toptic and reply to topic form.
• Support multiple Math Captcha on same page.
  i.e. if you have login and register form on same page then it will work in both form.
• Customizable error message.
• Hide math captcha for loggedin user.
• Used to prevent spam purchases for WooCommerce
• Used to avoid refund/chargeback frud
• Display Math Captcha with numbers and words combinations.

Have a look at video

Change Log:

= Version 1.0.3 (2020-12-29) =
* [+] Resolved typo mistakes
* [+] Tested with WordPress 5.6
* [+] Tested with WooCommerce 4.8.0

= Version 1.0.2 (2020-04-05) =
* [+] Added Contact form 7 compatibility
* [+] Tested with WooCommerce 4.0.1

= Version 1.0.1 (2019-11-15) =
* [+] Support for WordPress 5.3.
* [+] Support for WooCommerce 3.8.0.

= Version 1.0.0 (2018-06-23) =
* [+] Initial Release.

See full change log here