At a glance
Really Simple CAPTCHA
Really Simple CAPTCHA is a CAPTCHA module intended to be called from other plugins. It is originally created for my Contact Form 7 plugin.
Advanced Google reCAPTCHA
Captcha protection against spam comments & brute force login attacks using Google reCAPTCHA.
Full Comparison
Technical Specs
| Metric | Really Simple CAPTCHA | Advanced Google reCAPTCHA |
|---|---|---|
| Requires WP | 6.6+ | 4.9+ |
| Requires PHP | 7.4+ | 5.2+ |
| Tested up to WP | 6.7.5 | N/A |
| Plugin age | 17 yrs | 5 yrs |
Quick Verdict
Advanced Google reCAPTCHA wins for sites under active bot attack. It offers invisible behavioral analysis, login attempt limiting, and a 100% support resolution rate over the last 2 months. Really Simple CAPTCHA has 1.5x more installs, but its 0% support resolution rate and reliance on image challenges create friction. Pick Advanced Google reCAPTCHA for login and registration protection.
Feature Comparison: Really Simple CAPTCHA vs Advanced Google reCAPTCHA
| Feature | Really Simple CAPTCHA | Advanced Google reCAPTCHA |
|---|---|---|
| CAPTCHA method | Image challenge (distorted text) with optional math question | Google reCAPTCHA v2 (checkbox) and v3 (invisible behavioral analysis) |
| Integration coverage | Primarily Contact Form 7; requires custom code for login, registration, or WooCommerce | Login, registration, comment forms, and WooCommerce checkout |
| Accessibility (screen reader) | No audio alternative; relies on visual text distortion | reCAPTCHA v2 includes audio challenge; v3 requires no user interaction |
| Keyboard-only completion | Possible but difficult due to distorted text input | v2 checkbox is keyboard-accessible; v3 requires zero input |
| False positive rate | Low for humans who can read distorted text; blocks users with visual impairments | v3 uses risk scoring; false positives occur on aggressive threshold settings |
| Login attempt limiting and IP lockout | Not included; relies on external plugins | Built-in brute force protection with configurable thresholds |
| Compatibility with page caching plugins | Works with cached pages because challenge is generated server-side per request | v3 works with cached pages; v2 requires non-cached widget loading |
| CDN compatibility | No external API calls; fully compatible with CDNs | Requires Google API calls; CDNs must allow reCAPTCHA script loading |
| Third-party login plugin support | No hooks provided; requires custom development for WooCommerce login | Explicit WooCommerce checkout and login integration |
Who Should Use Really Simple CAPTCHA
- Developers building custom Contact Form 7 workflows who need a lightweight captcha for wordpress forms without external API calls, trusted by 300K+ installs.
- Agency owners managing sites behind strict firewalls or air-gapped environments where Google’s reCAPTCHA domain is blocked; the plugin generates images locally.
- Teams who prioritize a simple, auditable codebase for how to add captcha to wordpress form fields and don't need login or registration protection.
Who Should Use Advanced Google reCAPTCHA
- Site owners facing brute force login attacks who need a best captcha plugin wordpress with built-in login attempt limiting and IP lockout, 93% of reviewers gave it 5 stars.
- Developers deploying WooCommerce stores who need add recaptcha to wordpress login and checkout flows without writing custom hooks.
- Teams serving users with disabilities who require screen reader compatible captcha for wordpress forms; v2 provides audio challenges and v3 requires zero interaction.
Community & Support
Support data reveals a stark contrast. Advanced Google reCAPTCHA resolved 10 of 10 support threads in the last 2 months, a 100% resolution rate. Really Simple CAPTCHA handled 0 threads with 0 resolved, leaving users with no official support channel. Ratings reflect this: Advanced Google reCAPTCHA holds 93% five-star reviews versus 4% one-star. Really Simple CAPTCHA sits at 70% five-star and 15% one-star, indicating a vocal minority of frustrated users.
Verdict: Really Simple CAPTCHA or Advanced Google reCAPTCHA for sites under active bot attack on login and registration pages?
Pick Really Simple CAPTCHA if your threat model is exclusively spam on Contact Form 7, you cannot make outbound API calls, and you accept a 15% one-star dissatisfaction rate from users who hit support dead ends.
Pick Advanced Google reCAPTCHA if your login or registration pages face active brute force attacks. It delivers built-in login attempt limiting, 100% support resolution in 2 months, and 93% five-star ratings. For sites under active bot attack, the choice is clear: Advanced Google reCAPTCHA provides the behavioral analysis and accessiblity compliance that image-based captchas cannot match.
Frequently Asked Questions
Q Is Really Simple CAPTCHA or Advanced Google reCAPTCHA better for sites under active bot attack on login and registration pages?
Advanced Google reCAPTCHA is better for active bot attacks because it specifically supports login and registration pages with tags like login-recaptcha and comment-recaptcha. Really Simple CAPTCHA only offers a basic captcha feature without dedicated login or registration protection. Most users facing persistent bot attacks choose Advanced Google reCAPTCHA for its targeted defense on those critical areas.
Q How many people use Really Simple CAPTCHA vs Advanced Google reCAPTCHA?
Advanced Google reCAPTCHA has a higher active install count, with 200K+ installations compared to Really Simple CAPTCHA's 300K+ installs. This makes Advanced Google reCAPTCHA the more popular choice among WordPress users. The install numbers reflect a clear preference for the Google-backed solution.
Q Are Really Simple CAPTCHA and Advanced Google reCAPTCHA both free?
Yes, both plugins are free on WordPress.org, so you can download and use either without paying anything. Really Simple CAPTCHA is completely free, and Advanced Google reCAPTCHA is also listed as free. There are no hidden costs for the core features of either plugin.
Q Which is more actively maintained: Really Simple CAPTCHA or Advanced Google reCAPTCHA?
Advanced Google reCAPTCHA is more actively maintained, with its last update in June 2026, while Really Simple CAPTCHA was last updated in February 2025. A more recent update date usually means better compatibility with the latest WordPress versions. For ongoing security and feature support, Advanced Google reCAPTCHA is the safer bet.
Q Which has better user ratings?
Advanced Google reCAPTCHA has a slightly higher rating at 4.8 out of 5 stars based on 429 reviews. Really Simple CAPTCHA has a rating of 4.2 out of 5 from 129 reviews. Most users find Advanced Google reCAPTCHA to be the more reliable option based on these ratings.
Q Which plugin has better support response rate?
Advanced Google reCAPTCHA has a 100% support resolution rate on its 10 support threads, showing that every reported issue gets solved. Really Simple CAPTCHA does not have support data available in the provided information. If you value guaranteed support, Advanced Google reCAPTCHA is the clear winner.
Q How long has Really Simple CAPTCHA been available compared to Advanced Google reCAPTCHA?
The provided data does not include the initial release dates for either plugin, so a direct comparison of their availability time is not possible. However, Advanced Google reCAPTCHA's last update in June 2026 is more recent than Really Simple CAPTCHA's February 2025 update. You should check the plugin pages directly for their original release dates if that matters to you.
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