WordPress plugin comparison

MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder vs Ninja Forms

MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder

by PluginOps

2K+ installs4.0

Ninja Forms

by Kevin Stover

500K+ installs4.4

At a glance

Ninja Forms has more active installs: 500K+, against 2K+ for MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder.
On a typical day, Ninja Forms is downloaded about 13,741 times, MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder about 38.
Ninja Forms is rated higher: 4.4 out of 5 from 1,398 reviews, against 4.0 from 65 reviews.
Ninja Forms was updated more recently: Nov 9, 2026, against Jul 29, 2026 for MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder.
Ninja Forms is tested with a newer WordPress: 7.1.4, against 7.0.8 for MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder.
Ninja Forms has been around longer: since 2011, against 2014 for MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder.

Ninja Forms leads on 7 of 7 comparable lines.

Metric	MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder	Ninja Forms
Popular rank	#4,514	#114
Active installs	2K+	500K+
Downloads, last 30 days	897	922.2K
Rating	4.0(65)	4.4(1.4K)
Support threads resolved	–	60%
Tested up to	7.0.8	7.1.4
Search multiplier	×0.63	×2.56
Last release	3 months ago	today
Requires PHP	5.0	7.4

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

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