WordPress plugin comparison
Invisible Anti-Spam & CAPTCHA vs Stop Signup Spam
Invisible Anti-Spam & CAPTCHA
by Matthias Nordwig
5K+ installs4.8
Stop Signup Spam
by lelandf
300+ installs5.0
At a glance
- Invisible Anti-Spam & CAPTCHA has more active installs: 5K+, against 300+ for Stop Signup Spam.
- On a typical day, Invisible Anti-Spam & CAPTCHA is downloaded about 199 times, Stop Signup Spam about 7.
- Stop Signup Spam is rated higher: 5.0 out of 5 from 1 review, against 4.8 from 50 reviews.
- Invisible Anti-Spam & CAPTCHA was updated more recently: Nov 4, 2026, against May 31, 2017 for Stop Signup Spam.
- Invisible Anti-Spam & CAPTCHA is tested with a newer WordPress: 7.1.4, against 4.7.39 for Stop Signup Spam.
- Stop Signup Spam has been around longer: since 2017, against 2022 for Invisible Anti-Spam & CAPTCHA.
Line by line
Invisible Anti-Spam & CAPTCHA leads on 6 of 7 comparable lines.
| Metric | Invisible Anti-Spam & CAPTCHA | Stop Signup Spam |
|---|---|---|
| Popular rank | #3,192 | #10,703 |
| Active installs | 5K+ | 300+ |
| Downloads, last 30 days | 8.4K | 147 |
| Rating | 4.8(50) | 5.0(1) |
| Support threads resolved | 83% | – |
| Tested up to | 7.1.4 | 4.7.39 |
| Search multiplier | ×1.34 | ×0.00 |
| Last release | 7 days ago | 9 years ago |
| Requires PHP | 7.1 | – |
From WordPress.org's public data, refreshed every night. Downloads are WordPress.org's official daily figures for the last 30 days.
Tags they share
More comparisons
- Invisible Anti-Spam & CAPTCHA vs CF7 Apps
- Invisible Anti-Spam & CAPTCHA vs Gravity Forms Zero Spam
- Invisible Anti-Spam & CAPTCHA vs Friendly Captcha for WordPress
- Invisible Anti-Spam & CAPTCHA vs oopspam Anti-Spam
- Stop Signup Spam vs Akismet Anti-spam
- Stop Signup Spam vs Anti-Spam, Spam FireWall by CleanTalk
- Stop Signup Spam vs Gravity Forms Zero Spam
- Stop Signup Spam vs Spam Protection
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