Description
This plugin has been closed as of May 25, 2026 and is not available for download. This closure is permanent.
Reviews
May 24, 2026
Altcha used to be opensource, and worked great.
But now, the plugin installation forces you to pay, otherwise it doesn’t protect your contact form.
Using the open-source version is supposed to be possible… well… good luck to find how…
May 10, 2026
The free version of ALTCHA (v. 1.26.3) is preposterously easy to set up, and then … it works just like it’s supposed to! Excellent plugin, as is.
November 24, 2025
its a simple plugin easy to setup and work well with my websites… so far eliminated almost all spam +1
November 22, 2025
I personally find this plugin very useful and working just fine, no problems. I don’t understand why people here complain. Great work, thanks! And please keep this plugin alive.
November 17, 2025
The version 1 Altcha WordPress plugin was a promising, if not perfect, captcha plugin. Unfortunately, the developers got everything wrong with version 2. First of all, it can only be installed via the website, which is suspicious. There are no upgrade notes, which is an absolute no-go for commercial sites. Incidentally, a captcha that installs itself into all forms without being asked is a very bad idea. For example, Altcha v2 also activates when using form-like elements such as filter widgets for lists. Or in globally integrated service forms, so that the Altcha screen pops up on every page. We also suspect that Altcha v2 prevents AI search engines from crawling – this has not yet been verified, but it coincides with the use of the plugin. For all these reasons, we have decided to stop using the plugin for the time being.
November 17, 2025
Altcha v1 was brilliant – did just what I wanted seamlessly. Sadly when I installed v2 the login blocked for some users (and it was impossible to see why). I think the increased comms to the central system were to blame, but I’m not sure. I can’t switch back to v1 without having the ‘nag’ to upgrade constantly visible on the plugin page, and putting the shortcode back into all the forms. A quick switch to Cloudfare Turnstile and all is working nicely. Sad, though, because Altcha looked great.
Contributors & Developers
“ALTCHA Spam Protection” is open source software. The following people have contributed to this plugin.
Contributors“ALTCHA Spam Protection” has been translated into 2 locales. Thank you to the translators for their contributions.
Translate “ALTCHA Spam Protection” into your language.
Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.