WordPress plugin comparison

Conditional Fields for Contact Form 7 vs Duplicate Killer

Conditional Fields for Contact Form 7

by Jules Colle

100K+ installs4.8

Duplicate Killer

by NIA

1K+ installs5.0

At a glance

Conditional Fields for Contact Form 7 has more active installs: 100K+, against 1K+ for Duplicate Killer.
On a typical day, Conditional Fields for Contact Form 7 is downloaded about 2,940 times, Duplicate Killer about 71.
Duplicate Killer is rated higher: 5.0 out of 5 from 3 reviews, against 4.8 from 166 reviews.
Duplicate Killer was updated more recently: Nov 2, 2026, against Oct 29, 2026 for Conditional Fields for Contact Form 7.
Both are tested up to WordPress 7.1.4.
Conditional Fields for Contact Form 7 has been around longer: since 2016, against 2022 for Duplicate Killer.

Conditional Fields for Contact Form 7 leads on 4 of 6 comparable lines.

Metric	Conditional Fields for Contact Form 7	Duplicate Killer
Popular rank	#335	#6,186
Active installs	100K+	1K+
Downloads, last 30 days	144.7K	2.9K
Rating	4.8(166)	5.0(3)
Support threads resolved	33%	–
Tested up to	7.1.4	7.1.4
Search multiplier	×1.32	×0.63
Last release	11 days ago	7 days ago
Requires PHP	7.0	5.6.20

From WordPress.org's public data, refreshed every night. Downloads are WordPress.org's official daily figures for the last 30 days.

Track your plugin against its rivals every day: rank, installs, downloads, ratings and their releases, with alerts when anything moves.