WordPress plugin comparison
Invisible Anti-Spam & CAPTCHA vs Vaccine
At a glance
- Invisible Anti-Spam & CAPTCHA has more active installs: 5K+, against 10+ for Vaccine.
- On a typical day, Invisible Anti-Spam & CAPTCHA is downloaded about 199 times, Vaccine about 1.
- Vaccine has no reviews yet.
- Invisible Anti-Spam & CAPTCHA was updated more recently: Nov 4, 2026, against Sep 5, 2011 for Vaccine.
- Invisible Anti-Spam & CAPTCHA is tested with a newer WordPress: 7.1.4, against 3.2.1 for Vaccine.
- Vaccine has been around longer: since 2011, against 2022 for Invisible Anti-Spam & CAPTCHA.
Line by line
Invisible Anti-Spam & CAPTCHA leads on 6 of 6 comparable lines.
| Metric |  Invisible Anti-Spam & CAPTCHA |  Vaccine |
|---|---|---|
| Popular rank | #3,192 | #39,604 |
| Active installs | 5K+ | 10+ |
| Downloads, last 30 days | 8.4K | 25 |
| Rating | 4.8(50) | No ratings |
| Support threads resolved | 83% | – |
| Tested up to | 7.1.4 | 3.2.1 |
| Search multiplier | ×1.34 | ×0.00 |
| Last release | 6 days ago | 15 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
- Vaccine vs Akismet Anti-spam
- Vaccine vs Anti-Spam, Spam FireWall by CleanTalk
- Vaccine vs Gravity Forms Zero Spam
- Vaccine vs Spam Protection
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