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No-captcha Spam Block 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 41 for No-captcha Spam Block, led by lower removal risk.

Active-install trajectory

No-captcha Spam BlockKama SpamBlock

Active installs, each indexed to 100 at the start of the window. A line above 100 is growing its install base, below 100 is shrinking.

Metric	No-captcha Spam Block	Kama SpamBlock
Active installs Modeled from the public "N+" band and recent downloads.	70–80	4K–5K ✓
Active installs, change over ~6 months Compares the public install bands. One band step shows as the band change, not a percentage.	-13% ✓	5K+ → 4K+
Overall health	D · 41	A · 88 ✓
Maintenance How recently the plugin was updated.	3/100	98/100 ✓
Rating quality Volume-adjusted review quality.	64/100	90/100 ✓
Support Share of forum threads marked resolved.	70/100	70/100
Rating (weighted for review count)	3.6★	4.5★ ✓
Reviews	3	17 ✓
Ranking optimization How well the listing is tuned to rank on wp.org.	36/100	94/100 ✓
Removal risk Maintenance signals that precede a wp.org closure. Not an official status.	High	Low ✓
Last updated	13.2y ago	3mo ago ✓
Downloads, last 30d	69	881 ✓
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.	-24%	+9%
Install conversion Active installs over lifetime downloads. Downloads include every update, so older and more frequently released plugins read lower.	1.4%	5.8% ✓
Category	Blocks	Security

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

Release activity

No-captcha Spam BlockKama 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.