Plugin Reviews

Math Captcha

Math Captcha is a 100% effective CAPTCHA for WordPress that integrates into login, registration, comments, Contact Form 7 and bbPress.

49 reviews
Average Rating
4.2 out of 5 stars
Bad plugin, bad practice in the first place
By ,

This plugin isn’t working properly; I’m either getting “invalid result” or “timeout” errors on a site I’m visiting as guest and where I know they have this plugin installed. And besides, from a usability point of view classic user input CAPTCHAs are outdated and not best practice anymore ([Link redacted]). It would be better to employ a [Link redacted] where the human user doesn’t have to do anything and which doesn’t break when using it normally.

Doesn't Work With Contact Form 7
By , for WP 4.3

This plugin does not work with Contact Form 7.
Based on my experience and many comments within the plugin support.
I'm not sure how this plugin perform with the core WP form submissions or BBPress submissions, but with CF7 this plugin is a 'no-no'.

Too many issues when combined with WP Super Cache
By ,

I have been using this plugin on several sites, and have had repeated issues when combined with WP Super Cache. It seems that the math question is cached, so users get a timeout message even if they answer the question within a short time.
I have raised a support ticket, without any answer from the author.
I have withdrawn this plugin from all sites and now use an antispam plugin instead.

Great Plugin
By , for WP 4.3.1

Easy to set up and doesn't use bandwidth like image captchas do.

That's my choice!
By , for WP 4.3.1

I'm finding this plugin very easy and friendly.
No problems to set up, easy to use.
Just PERFECT simplicity :)

By , for WP 4.3


This is excellent for spam protection
By , for WP 4.3

This plugin is excellent for spam protection. If the captcha were on BuddyPress login and registration pages, then this plugin would easily rate 5-stars. Thanks for your contribution to the world!

By , for WP 4.2.2

Am using this plugin for login, registration, and password recovery forms, and it works great! It's much too involved and demanding to enable on comment and contact forms (where I use other captcha plugins), but that's what I was looking for — something more robust on the pages that grant site access. I'm very happy with how this has been working for me.

*Suggestion* — I love the ability to choose the type of operations (multiplications, divisions, etc). And, I love that the solution isn't always at the end of the equation (e.g.: 7x?=21). That's really great. I would also appreciate an option to select the number of operations. That is to say, the ability to enable more complex (multiple-step) math equations, such as 3x4+6=? — so, choosing 2 steps, 3 steps, 4 steps, etc. Not a deal-breaker by any means, but I feel it would make the site that much safer knowing it requires thought and intelligence to get beyond the login screen...

Overall, many thanks for this plugin!

botnet still bypass
By , for WP 4.2.2

After installing the plugins I was happy no javascript is used. But still botnets are doing many login attempts with this plugin enabled.

careless coding
By , for WP 4.1.1

class-core.php line 752

RewriteRule (.*) ^http://%{REMOTE_ADDR}/$ [R=301,L]

problem -----------> /$

You .htacces here is giving error for using such code. I'm using LiteSpeed and he was yelling in your code ..

Sites permalink structure with "/" Where did you remove that bit of "$" are you using?

This is such update .. ( no "/" and no "$" )
RewriteRule (.*) ^http://%{REMOTE_ADDR} [R=301,L]

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