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Kit (formerly ConvertKit) – Email Newsletter, Email Marketing, Membership, Subscribers and Landing Pages

by Kit · Membership

Also makes 1 other plugin · 40.7K+ installs across the portfolio →

Build your email subscriber lists, send email marketing newsletters, create landing pages, build custom subscription forms with the Form Builder block …

How scoring works →
90 Health · A
Maintenance 100/100
Rating quality 94/100
Support 70/100

90 health vs 69 average across 180 Membership plugins

Directory ranking optimization

How it's scored →

How well this listing is tuned to rank in WordPress.org search, on the factors an owner controls. Not popularity, optimization.

98 / 100

Excellent listing optimization

Well tuned across the board

Update recency 100/100
WP compatibility 100/100
Rating quality 91/100
Listing tuning 100/100
Support resolution 100/100

Daily downloads

Since 2022-10-05 · 1,421 days · wp.org + Plugin Pulse archive

+58% vs prior 30d
1KDownloads · Aug 26

30-day downloads

Rolling 30-day volume · peaks are release surges

98.9K

now · peak 134.7K

98.7K30d downloads · Aug 26

Directory rank vs rivals

wp.org popularity rank over time · higher is better · when a rival's line climbs above yours, they've overtaken you

Kit (formerly Conver · #809 you FluentCRM · #542 Mailster WordPress N · #2574 MailerPress · #6540

Rating trend

Star average over time · dips mark rough releases

4.8Stars · Aug 26

Update activity

How busy the existing users are, measured as downloads in the last 30 days for every 1,000 active sites. A spike means a new release everyone's pulling; a long, slow decline means an aging user base that updates less.

2.5Kper 1k installs · Aug 26

Release cadence

Actively maintained
from wp.org release tags

How often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.

34

releases in the last 12 months

2mo ago

latest release · v3.3.5

187

tagged releases on record

Recent releases

3.3.5 · 2mo ago3.3.4 · 2mo ago3.3.3 · 3mo ago3.3.2 · 4mo ago3.3.1 · 4mo ago3.3.0 · 4mo ago3.2.4 · 4mo ago3.2.3 · 5mo ago3.2.2.1 · 5mo ago3.2.2 · 5mo ago3.2.1 · 6mo ago3.2.0 · 6mo ago3.1.9 · 6mo ago3.1.8 · 7mo ago

What its installed base runs

via wordpress.org

Share of active installs on each version of this plugin · 68% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.

v3.3 68%
Older / other versions 32%

Estimated active installs

The public count shows “40K+”. Our estimate pins where the real number sits.

tracked estimate
40K–50K ≈49K

Refined from the date this plugin crossed into its current band.

Install history · since 2015-03-31 · 1,447 observations

40KInstalls · Aug 26

Estimated value

What this plugin might earn a year, and what it might sell for. Modeled from public signals; we don't see anyone's books.

Est. annual revenue

N/A

Est. acquisition value

N/A

No paid tier is visible, so we don't put a figure on revenue or sale value: that would be guessing. The install base is a real asset to an acquirer, just not one public data lets us price.

Details

Version
3.3.9
Last updated
6d ago
Added
2015-03-30 · 11 yrs old
Requires WP
5.6
Tested up to
7.1
Requires PHP
7.1

Recent reviews

All reviews on wp.org ↗
  1. sakellariades
    3mo ago

    Very good. I am at the beginning

    Read on wp.org ↗
  2. remoeng112
    4mo ago

    nice to see something work at least, thank you.

    Read on wp.org ↗
  3. helloshanemorgan
    5mo ago

    Signed up for Kit recently and was pleasantly surprised to find everything I needed to promote and create my email list at a reasonable price. Thanks!

    Read on wp.org ↗
  4. vuzvax
    7mo ago

    Excellent This topic was modified 3 months, 1 week ago by vuzvax.

    Read on wp.org ↗
  5. david2020
    9mo ago

    I have found the experience of using Kit extremely pleasurable and valuable. I highly recommend its use as it is easy to navigate and they think of everything that you’ll need to get you the results you desire. I give Kit two thumbs up. Thank you.

    Read on wp.org ↗
  6. colleenhf
    9mo ago

    Love it.

    Read on wp.org ↗
  7. whiteelephantagency
    9mo ago

    We’ve been using this for about two years now and its done the job. Wish it were more responsive for mobile though.

    Read on wp.org ↗
  8. animtank
    9mo ago

    Everything works. 🙂

    Read on wp.org ↗

Latest updates

via wp.org changelog

Recent releases and news for this plugin

  1. 2026-08-19 Version 3.3.9 Added: Settings: Deprecation warning when using Legacy Form or Legacy Landing Page Added: Setup Wizards: Member Content: Check WordPress user can create and publish the chosen Post Type Added: Setup Wizards: Landing Page 3.3.9
  2. 2026-08-10 Version 3.3.8 Added: Post Settings: Deprecation warning when using Legacy Form or Legacy Landing Page Removed: Legacy Forms from settings dropdowns. Existing Legacy Form settings will be honored, but deprecated in the future Removed: 3.3.8
  3. 2026-07-31 Version 3.3.7 Added: Settings: Spam Protection: Cloudflare Turnstile option Updated: Settings: reCAPTCHA: Moved to Spam Protection section Fix: Form Builder: “This block has encountered an error” when Plugin disconnected from Kit 3.3.7
  4. 2026-07-20 Version 3.3.6 Fix: Member Content: Tags: Require Login is now always enabled, to ensure subscribers authenticate to access gated content Removed: Kit Forms: Store subscriber ID as cookie when submitting an embedded Kit form 3.3.6
  5. 2026-07-07 Version 3.3.5 Added: Settings: Tools: Kit Legacy Forms: Migrate from legacy forms to newer Kit forms Fix: Settings: Tools: Migrations: Use form instead of id for [convertkit_form] shortcode when migrating from third party form Plugins 3.3.5
  6. 2026-06-19 Version 3.3.4 Fix: Pages: Add New: Dropdown menu alignment and mobile layout Fix: Block Editor: Refresh button icon alignment Fix: Block Editor: Settings Sidebar: Improve descriptions and links to match Classic Editor Fix: Settings: B 3.3.4

Known vulnerabilities

via Wordfence Intelligence

5 disclosed vulnerabilities on record for this plugin, all fixed in the current version. Sites on older versions stay exposed until they update.

  1. 2026-07-22 CVE-2026-65472 Missing Authorization Affects <= 3.3.5 Patched in 3.3.6
  2. 2024-06-20 CVE-2024-3961 Missing Authorization Affects <= 2.4.9 Patched in 2.4.9.1
  3. 2024-04-05 CVE-2024-31245 Exposure of Sensitive Information to an Unauthorized Actor Affects <= 2.4.5 Patched in 2.4.6
  4. 2023-05-15 CVE-2023-2337 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 2.2.0 Patched in 2.2.1
  5. 2022-12-23 CVE-2022-4508 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 2.0.4 Patched in 2.0.5

Vulnerability records provided by Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. License and terms.

CVE records: Copyright 1999-2026 The MITRE Corporation. CVE terms of use.

Behavioral tests

via WP Hive

Automated install-time checks, tested on PHP 8.1.12 · WP 7.0

Low memory footprint
Low page-speed impact
Runs on latest PHP + WP
No PHP errors
No JS errors
Activates cleanly
No resource errors
No external HTTP errors
Optimized database use
Frequently updated

Languages

via translate.wordpress.org

Translated into 8 languages, 0 at 90% or more

Portuguese (Brazil) 48%
English (UK) 27%
Dutch 7%
Swedish 7%
Bengali 6%
English (Canada) 3%
German 3%
Romanian 1%

Growth timeline

Install-tier crossings we have observed, and how long each tier took to outgrow

  1. 2024-11-30 50K+ → 40K+ down after 166 days in tier
  2. 2024-06-17 40K+ → 50K+ up after 1 days in tier
  3. 2024-06-16 50K+ → 40K+ down after 3 days in tier
  4. 2024-06-13 40K+ → 50K+ up

Competes with

The plugins that solve the same job, ranked by shared tags then reach, closest match first. The letter on the right is each plugin's health grade (A best, F worst).

Compare head to head →

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Kit (formerly ConvertKit) – Email Newsletter, Email Marketing, Membership, Subscribers and Landing Pages: 40K+ active installs, 4.8★ (90 reviews). Plugin Pulse (WP Mayor), as of 2026-08-25. https://plugins.wpmayor.com/plugin/convertkit