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ALTCHA Spam Protection

By Daniel

Security & Privacy / Security Scanning & Malware Protection

Reviewed by Omar Dabbas

Trusted WordPress expert with 20+ years of experience evaluating plugins for the WP ecosystem.

ALTCHA Spam Protection Review - In-Depth Analysis

ALTCHA provides a free, open-source Captcha alternative for effective spam protection. It respects user privacy and complies with GDPR regulations.

Performance Overview

WPS Score

6.79/10

User Rating

4/5 (based on 22+ reviews)

Active Installations

7,000+

Update Frequency

Below Average It is calculated using the weighted average of same category plugins.

Security Score

1 / 10 (Very Low Risk) It is calculated using the weighted average of all versions.

What It Does

ALTCHA is a powerful plugin that offers a free and open-source Captcha alternative to protect your website from spam. It ensures robust spam protection while prioritizing user privacy and complying with GDPR regulations.

The plugin operates in two modes: a self-hosted mode that is free and fully contained within your WordPress installation, and a custom SaaS API mode for additional features. The self-hosted mode is enabled by default, requiring no additional setup.

ALTCHA effectively blocks 99% of spam and abuse attempts without the need for user interaction, making it frictionless for visitors. It integrates seamlessly with various form plugins and provides unlimited verifications without relying on external services.

Comparing to Alternatives

ALTCHA Spam Protection offers a unique approach to spam protection with no direct paid version, but there are several other plugins available that provide similar functionalities with varying features.

Top alternatives

Strengths

No API or cloud services required, enhancing privacy and GDPR compliance
Simple and easy to set up with effective spam blocking
Free version is fully functional without hidden costs
Good user ratings with majority positive feedback
No recorded security vulnerabilities

Weaknesses

Version 2 introduces forced payment for protection, causing user dissatisfaction
Installation process changed to website-only, raising trust concerns
Automatic activation on all forms can cause usability issues
Lack of clear upgrade notes and support for version 2

User Sentiment Analysis

With an 80% overall rating and most users praising its ease of use and effectiveness, ALTCHA Spam Protection is generally well-received. However, about 27% of ratings are low, reflecting significant concerns with recent updates.

Positive highlights

'The free version is preposterously easy to set up and works just like it’s supposed to!' – nealumphred
'It’s free, works without any API or cloud services, no cookies, which all means GDPR and other privacy regulations are in check.' – agent862
'Simple and works well with my websites, eliminated almost all spam.' – Hiroshi
'Useful and simple.' – riccardomercurio
'I personally find this plugin very useful and working just fine, no problems.' – abaantravis

Common complaints

Version 2 blocks login for some users without clear reason
Forced payment to protect contact forms in version 2
Plugin installs itself into all forms without user consent
No upgrade notes or clear communication for version 2 changes

Weaknesses

Recent major update caused functionality and trust issues
Installation method changed to website-only, which some find suspicious
Nag messages and shortcode requirements in version 2 frustrate users
Automatic activation on unintended forms leads to poor user experience

Who Should Use This?

Best for

Users seeking a privacy-focused, easy-to-use spam protection plugin without reliance on external APIs or cloud services, especially those satisfied with the original version 1 functionality.

Not ideal for

Users who require transparent upgrade paths, full control over form integrations, or who are uncomfortable with forced payments and automatic plugin activations on all forms.

Pricing & Value

Free version includes

The free version offers effective spam protection without the need for API keys or cloud services, making it a valuable choice for privacy-conscious users.

Final Verdict

ALTCHA Spam Protection is a solid spam protection plugin that excels in privacy and ease of use, especially in its original version. It has garnered positive feedback for its effectiveness and simplicity without requiring external services.

However, recent updates have introduced significant drawbacks, including forced payments, automatic activation on all forms, and lack of clear communication, which have led to user dissatisfaction. Users should weigh these factors against available alternatives before choosing ALTCHA.

Other Notable Features

Here are a few other notable features of this free ALTCHA Spam Protection plugin.

Altcha

Anti-bot

Anti-spam

Captcha

Spam

Screenshots

FAQ

ALTCHA Spam Protection includes proprietary components that cannot be distributed directly via the WordPress Plugin Directory. This installer downloads the latest version from our official GitHub repository during activation. The downloaded plugin is fully functional and self-updating.