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Spam Protection Without Captcha vs Kama SpamBlock

Head-to-head on the signals that matter, from the public WordPress.org data.

Kama SpamBlock is the safest pick: health A · 88 against 46 for Spam Protection Without Captcha, led by lower removal risk.

Active-install trajectory

Kama SpamBlock moved down one install band, 5K+ to 4K+. That's a single step across the whole window, so there's no trajectory to draw. The download trend below moves daily.

Metric	Spam Protection Without Captcha	Kama SpamBlock
Active installs Modeled from the public "N+" band and recent downloads.	100–200	4K–5K ✓
Active installs, change over ~6 months Compares the public install bands. One band step shows as the band change, not a percentage.	Stable ✓	5K+ → 4K+
Overall health	D · 46	A · 88 ✓
Maintenance How recently the plugin was updated.	3/100	98/100 ✓
Rating quality Volume-adjusted review quality.	78/100	90/100 ✓
Support Share of forum threads marked resolved.	70/100	70/100
Rating (weighted for review count)	4.1★	4.5★ ✓
Reviews	3	17 ✓
Ranking optimization How well the listing is tuned to rank on wp.org.	40/100	94/100 ✓
Removal risk Maintenance signals that precede a wp.org closure. Not an official status.	High	Low ✓
Last updated	6.3y ago	3mo ago ✓
Downloads, last 30d	93	886 ✓
Download momentum, last 30d vs prior 30d Dips that follow a release spike are normal: wp.org counts every update as a download, so the weeks after a release run lower.	+10%	+8%
Install conversion Active installs over lifetime downloads. Downloads include every update, so older and more frequently released plugins read lower.	1.7%	5.8% ✓
Category	Security	Security

✓ marks the stronger plugin on each row. Rows where they're level show no marker.

Release activity

Spam Protection Without CaptchaKama SpamBlock

7-day average daily downloads. Downloads spike for about a week after each release as the install base re-downloads, so read this as release cadence, not growth.