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Hydrogen Calendar Embeds

by LBell · Booking & Events

Also makes 3 other plugins · 5K+ installs across the portfolio →

The free, simple, lightweight way to embed beautiful, fully customizable ICS calendars into your WordPress site.

Try it live opens a temporary test site in your browser, which can take about 20 seconds to load. Plugins that rely on outside services or a full server may not work completely there.

⚠ Few reviews

Health

A 85/100

Few reviews

Active installs

1K+

≈1.3K estimated

Momentum

-13%

downloads vs prior 30d

Biggest opportunity: Swap “events”, “embed” and “calendar” for “ical”, “gcal” and “airbnb”. “events” isn't earning its slot: you're not in the first 24 results for its own search. “ical” sits at #7 untagged, close enough for a declared tag to move it up. “embed” isn't earning its slot: it only gets you to #24. “gcal” sits at #9 untagged, close enough for a declared tag to move it up. “calendar” isn't earning its slot: it only gets you to #20. “airbnb” sits at #12 untagged, close enough for a declared tag to move it up. All five slots are taken, so one has to go.

How scoring works →
85 Health · A
Maintenance 100/100
Rating quality 78/100
Support 70/100

85 health vs 69 average across 1,844 Booking & Events plugins

Install conversion

How it's measured →

15%

of downloads still active

At least 1K of 6.9K lifetime downloads are still running, above its category: the median Booking & Events plugin keeps 0.8%, across 944 plugins.

Downloads count every update, not just first installs, so older and more frequently released plugins read lower. Compare against other Booking & Events plugins, not across the directory. wp.org reports active installs as the bottom of a band, so the real rate is this or higher.

This plugin shipped 6 releases in the last 12 months, and every existing install that updated counted as another download. wp.org publishes no split between first installs and updates, so we show the raw rate rather than guess at one.

Details

Version
3.0.4
Last updated
8d ago
Added
2026-01-04
Requires WP
5.8
Tested up to
7.1.4
Requires PHP
7.4

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.

92 / 100

Excellent listing optimization

Most to gain: Rating quality

Update recency 100/100

Updated 8 days ago

WP compatibility 100/100

Tested up to WordPress 7.1.4, the current branch or newer

Rating quality 58/100

4.5★ over 6 reviews, smoothed to 4.14★ and held back under 25 reviews

Listing tuning 100/100

5 of 5 tags set · short description in place

Support resolution 100/100

2 of 2 support threads resolved in the last 2 months

To rank higher: Too few reviews to rank on quality — nudge happy users to leave one.

Get the full rank-higher report →

Daily downloads

Since 5 Jan 2026 · 302 days · wp.org + Plugin Pulse archive

-13% vs prior 30d
562 Nov 2026

30-day downloads

Rolling 30-day volume · peak 1.4K · peaks are release surges

1.4K2 Nov 2026

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

Hydrogen Calendar Em · #6078youBooking Manager · #3165Tockify Events Calen · #4998Simple Google Calend · #6600

Rating trend

Star average over time · dips mark rough releases

4.52 Nov 2026

Health trend

Composite health score, snapshotted daily

852 Nov 2026

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.

1.4K2 Nov 2026

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.

6

releases in the last 12 months

8d ago

latest release · v3.0.4 · 25 Oct 2026

6

tagged releases on record

Recent releases

3.0.4 · 25 Oct 20263.0.3 · 17 Jul 20263.0.1 · 8 Jan 20263.0.0 · 4 Jan 20261.0.1 · 4 Jan 20261.0.0 · 4 Jan 2026

What its installed base runs

via wordpress.org

Share of active installs on each version of this plugin · 100% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.

v3.0 100%

Estimated active installs

The public count shows “1K+”. Our estimate pins where the real number sits.

tracked estimate
1K–2K ≈1.3K

Crossed into this band 4 months ago; a band this size takes about a year or more to cross, which places it about 32% of the way through.

At the current install trend, crossing 2K+ in roughly 861 days.

Install history since 4 Jan 2026

1K2 Nov 2026

AI assistants

How it's measured →

Whether ChatGPT and Claude name this plugin when asked the category question, and whether the readme gives them something to quote.

Not measured yet for this plugin’s topics. Its tracked searches are not among the measured topics. See the topics measured so far.

Readme readiness

6 of 8 pass · checked 28 Oct 2026

Can an assistant quote this readme? Eight deterministic checks over the wp.org listing, no model involved.

  • ✓ Says what it does "The free, simple, lightweight way to embed beautiful, fully customizable ICS calendars into your WordPress..."
  • ✓ Has a FAQ 5 questions in the FAQ.
  • ✓ FAQ asks real questions 5 of 5 read like questions a user would type.
  • ! Names who it is for Never says who the plugin is for or what they use it for.
  • ! Names what it works with Names no plugin, service or platform it works with.
  • ✓ Headings and lists 2 headings and 2 lists.
  • ✓ Enough to quote 1,511 characters of description.
  • ✓ Tags match the text All 5 tags appear in the text.

Growth timeline

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

  1. 2026-07-10 900+ → 1K+ up after 43 days in tier
  2. 2026-05-28 800+ → 900+ up after 23 days in tier
  3. 2026-05-05 700+ → 800+ up after 25 days in tier
  4. 2026-04-10 600+ → 700+ up after 21 days in tier
  5. 2026-03-20 500+ → 600+ up after 12 days in tier
  6. 2026-03-08 400+ → 500+ up after 15 days in tier
  7. 2026-02-21 300+ → 400+ up after 16 days in tier
  8. 2026-02-05 200+ → 300+ up after 13 days in tier

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).

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Hydrogen Calendar Embeds: 1K+ active installs, 4.5★ (6 reviews). Plugin Pulse (WP Mayor), as of 2026-11-02. https://plugins.wpmayor.com/plugin/hydrogen-calendar-embeds

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