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Mailster Cool Captcha

v1.4.0

by EverPress · updated 25 days ago

Add a self-hosted image captcha to Mailster newsletter signup forms—block bot subscriptions without Google API keys.

captchaformsmailsternewsletterspam
WordPress.org SaveAnalyze reviews Track this plugin
Rank
#9,927
Down1 vs yesterday
Active installs (est.)
≈ 416
400+ reported · High
Total downloads
6.5K
6,469 all-time
Rating
–
0 reviews
Support resolved
–
0 of 0 threads, last 2 months
Growing·Downloads +162.5% (30d)·Toward 500+ · ETA ~4d

Mailster Cool Captcha at a glance

Mailster Cool Captcha is a WordPress plugin by EverPress with 400+ active installs, the #9,927 most popular plugin on WordPress.org. On a typical day it’s downloaded about 8 times, 163% more than the month before. It has no reviews yet. Version 1.4.0 came out on Oct 14, 2026 and is tested up to WordPress 7.1.4. Among the 22 plugins tagged “mailster”, it ranks #10. It was first released in 2017.

Chart time range

Applies to every chart below. History from Oct 10, 2026, 30 days.

Showing the last 30 days. Full history comes with any paid plan.See plans

Downloads over time

Download stats

441 downloads · the last 30 days

Downloads over time
Mailster Cool Captcha Compare series
Downloads over time: 29 days across 1 series.0204060Oct 10Oct 15Oct 19Oct 24Oct 29Nov 2Nov 7Oct 29, 2026: Tested up to 7.1.4
View as table
DateMailster Cool Captcha
Nov 7, 202611
Nov 6, 20268
Nov 5, 202611
Nov 4, 20265
Nov 3, 202610
Nov 2, 202612
Nov 1, 20268
Oct 31, 20265
Oct 30, 20269
Oct 29, 20266
Oct 28, 202617
Oct 27, 20268
Oct 26, 20267
Oct 25, 20268
Oct 24, 202614
Oct 23, 202612
Oct 22, 202621
Oct 21, 202612
Oct 20, 202613
Oct 19, 202620
Oct 18, 202630
Oct 17, 202611
Oct 16, 202619
Oct 15, 202674
Oct 14, 202673
Oct 13, 20265
Oct 12, 20263
Oct 11, 20263
Oct 10, 20266

Unusual spikes are usually updates, not new installs.

Estimated installs

≈ 416 · +0.5% in the last 30 days

Estimated installs
Estimated installs: 13 days across 1 series.415Oct 27Oct 29Oct 31Nov 2Nov 5Nov 7Nov 9Oct 29, 2026: Tested up to 7.1.4
View as table
DateEstimated installs
Nov 9, 2026416
Nov 8, 2026416
Nov 7, 2026414
Nov 5, 2026412
Nov 4, 2026414
Nov 3, 2026413
Nov 2, 2026413
Nov 1, 2026414
Oct 31, 2026415
Oct 30, 2026419
Oct 29, 2026415
Oct 28, 2026415
Oct 27, 2026414

Rank over time

#9,927 · up 43 in the last 30 days

Popular rank
Popular rank: 14 days across 1 series.#9.9K#10KOct 27Oct 29Oct 31Nov 2Nov 5Nov 7Nov 9Oct 29, 2026: Tested up to 7.1.4
View as table
DateDaily snapshot
Nov 9, 2026#9,927
Nov 8, 2026#9,926
Nov 7, 2026#9,942
Nov 6, 2026#9,933
Nov 5, 2026#9,955
Nov 4, 2026#9,940
Nov 3, 2026#9,956
Nov 2, 2026#9,943
Nov 1, 2026#9,944
Oct 31, 2026#9,934
Oct 30, 2026#9,876
Oct 29, 2026#9,935
Oct 28, 2026#9,955
Oct 27, 2026#9,970

Growth %

Average +0.04% a day in the last 30 days

Growth %, day over day
Growth %, day over day: 12 days across 1 series.-1%0%1%Oct 28Oct 30Nov 1Nov 3Nov 5Nov 7Nov 9
View as table
DateGrowth
Nov 9, 20260.00%
Nov 8, 2026+0.48%
Nov 7, 2026+0.24%
Nov 5, 2026-0.48%
Nov 4, 2026+0.24%
Nov 3, 20260.00%
Nov 2, 2026-0.24%
Nov 1, 2026-0.24%
Oct 31, 2026-0.95%
Oct 30, 2026+0.96%
Oct 29, 20260.00%
Oct 28, 2026+0.24%

Active installs band

400+ on WordPress.org

Active installs (rounded band)
Active installs (rounded band): 14 days across 1 series.380400420Oct 27Oct 29Oct 31Nov 2Nov 5Nov 7Nov 9Oct 29, 2026: Tested up to 7.1.4
View as table
DateDaily snapshot
Nov 9, 2026400+
Nov 8, 2026400+
Nov 7, 2026400+
Nov 6, 2026400+
Nov 5, 2026400+
Nov 4, 2026400+
Nov 3, 2026400+
Nov 2, 2026400+
Nov 1, 2026400+
Oct 31, 2026400+
Oct 30, 2026400+
Oct 29, 2026400+
Oct 28, 2026400+
Oct 27, 2026400+

Search rankings

Where it appears in WordPress.org search for the searches you track, checked every day.

See where Mailster Cool Captcha ranks in search

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Change log

From our daily snapshot of WordPress.org
  1. Rank #9955 → #9955Downloads -33.3%
    • Tested up to 7.1.3 → 7.1.4

Versions in use

Share of active installs on each published version, from WordPress.org.

  • v1.430%
  • v1.327%
  • v1.222%
  • v1.121%

Requirements & info

Version history
Version
1.4.0
Requires WordPress
6.0
Tested up to
7.1.4
Requires PHP
–
First released
Jan 13, 2017
Last updated
Oct 14, 2026
Releases, last 12 months
…

Questions about Mailster Cool Captcha

How many websites use Mailster Cool Captcha?

Mailster Cool Captcha is active on 400+ WordPress sites, as WordPress.org reports it. WordPress.org rounds the number down, so the real count is somewhat higher. That makes it the #9,927 most popular plugin on WordPress.org.

How many times has Mailster Cool Captcha been downloaded?

6,469 times in total since 2017. On a typical day it’s downloaded about 8 times. See download stats

When was Mailster Cool Captcha last updated?

Version 1.4.0 came out on Oct 14, 2026 (3 weeks ago).

Is Mailster Cool Captcha compatible with the latest WordPress?

Yes. It’s tested up to WordPress 7.1.4, the current version.

Is Mailster Cool Captcha still maintained?

Yes. Its last release was 3 weeks ago. No support threads were opened in the last two months.

What rating does Mailster Cool Captcha have?

No one has reviewed Mailster Cool Captcha on WordPress.org yet.

What are the best alternatives to Mailster Cool Captcha?

The plugins most like Mailster Cool Captcha, by the tags they share, are Simple CAPTCHA with Cloudflare Turnstile (200K+), Gravity Forms Zero Spam (100K+) and Image CAPTCHA for Contact Form 7 and WPForms by HookAndHook (DSGVO/GDPR) (70K+). Compare all alternatives

Compare with competitors

Add up to 1 competitor. No account needed.

Starter · 1 competitor
Mailster Cool Captcha
Suggested:
Metric
Mailster Cool Captcha
Estimated installs≈ 416
Reported installs400+
Rating–
Reviews0
Total downloads6.5K
AuthorEverPress
First releasedJan 13, 2017
Version1.4.0
Requires WP6.0
Requires PHP–
Last updatedOct 14, 2026

Alternatives to Mailster Cool Captcha

Compare all alternatives

Popular plugins with the same tags, the most in common first.

Side by side:Mailster Cool Captcha vs Simple CAPTCHA with Cloudflare TurnstileMailster Cool Captcha vs Gravity Forms Zero SpamMailster Cool Captcha vs Image CAPTCHA for Contact Form 7 and WPForms by HookAndHook (DSGVO/GDPR)

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