UseStrict's Calendly Embedder
by Vinny · Booking & Events
Also makes 1 other plugin · 4K+ installs across the portfolio →
Simple but powerful embedding for Calendly.
85 health vs 67 average across 980 Booking & Events 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.
Excellent listing optimization
Biggest win: Rating quality
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 2022-10-05 · 1,425 days · wp.org + Plugin Pulse archive
30-day downloads
Rolling 30-day volume · peaks are release surges
449
now · peak 2.3K
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
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.
Release cadence
Occasionally updatedHow often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.
3
releases in the last 12 months
3mo ago
latest release · v1.2.1
18
tagged releases on record
Recent releases
What its installed base runs
via wordpress.orgShare of active installs on each version of this plugin · 79% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.
Estimated active installs
The public count shows “2K+”. Our estimate pins where the real number sits.
Refined from the date this plugin crossed into its current band.
Install history · since 2022-08-17 · 1,423 observations
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
Est. acquisition value
A small install base leaves thin data to model from. A declining trend compresses what a buyer would pay. The range spans more than 10x because wp.org publishes install counts as broad bands, and conversion and price compound on top. Read the midpoint as an order of magnitude, not a valuation.
How we estimate this
Assumptions
- Free → paid conversion. 0.5%–2% of active installs pay for the pro tier. Typical for freemium WordPress plugins; the real rate varies a lot by product.
- Annual price per customer. $79–$199 a year, typical for Booking & Events plugins rather than this plugin's own pricing.
- Acquisition multiple. 1.5x–2.5x annual revenue, the going range for small WordPress-plugin businesses, compressed because the install trend is declining.
- Install base. 2K–3K active installs, from our install estimate (wp.org only publishes the floor).
Inputs
- Active installs
- 2K–3K
- Category
- Booking & Events
- Pro tier
- detected ("Lite" naming, the free tier of a paid product)
- Download trend
- declining (30d downloads down vs prior 30d)
- Reviews
- 3
- Last updated
- 82 days ago
Revenue is installs × conversion × price; value is revenue × a typical acquisition multiple. Every factor is an assumption band, so the output is a wide range on purpose. If you're buying or selling, treat this as a starting point for due diligence.
Details
Latest updates
via wp.org changelogRecent releases and news for this plugin
- — Version 1.2.1 Fix version number. Update tested up to. 1.2.1
- — Version 1.2 Patch XSS vulnerability. Update tested up to. 1.2
- — Version 1.1.7.2 Fix typo, reported by @ovassolutions. Update tested up to. 1.1.7.2
- — Version 1.1.7.1 Fix missing classes and styles attributes for link-type calendar reported by @aabdullaev. Update tested up to. 1.1.7.1
- — Version 1.1.6.2 Update stable tag. 1.1.6.2
- — Version 1.1.6.1 Fix stable tag in readme.txt. 1.1.6.1
Known vulnerabilities
via Wordfence Intelligence1 disclosed vulnerability on record for this plugin, fixed in the current version. Sites on older versions stay exposed until they update.
- Medium · 6.4 UseStrict's Calendly Embedder <= 1.1.7.2 - Authenticated (Contributor+) Stored Cross-Site Scripting ↗2025-12-15 CVE-2025-67555 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affects <= 1.1.7.2 Patched in 1.2
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 HiveAutomated install-time checks, tested on PHP 8.1.12 · WP 7.0.1
Growth timeline
Install-tier crossings we have observed, and how long each tier took to outgrow
- 2025-08-25 1K+ → 2K+ up after 805 days in tier
- 2023-06-12 900+ → 1K+ up after 1 days in tier
- 2023-06-11 1K+ → 900+ down after 2 days in tier
- 2023-06-09 900+ → 1K+ up after 4 days in tier
- 2023-06-05 1K+ → 900+ down after 1 days in tier
- 2023-06-04 900+ → 1K+ up after 4 days in tier
- 2023-05-31 1K+ → 900+ down after 1 days in tier
- 2023-05-30 900+ → 1K+ up after 1 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).
-
Hydrogen Calendar Embeds 1K+ installs · 4.0★ · 2 shared tags B -
The Events Calendar 600K+ installs · 4.2★ · 1 shared tag A -
EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documents 100K+ installs · 4.8★ · 1 shared tag A -
Events Manager – Calendar, Bookings, Tickets, and more! 60K+ installs · 4.2★ · 1 shared tag B - I iframe 60K+ installs · 4.3★ · 1 shared tag A
-
Advanced iFrame 40K+ installs · 4.3★ · 1 shared tag A
Embed this report card
Drop a live Pulse card for UseStrict's Calendly Embedder into a readme, a review or a deck. It updates itself.
<iframe src="https://plugins.wpmayor.com/embed/cal-embedder-lite" width="480" height="300" style="border:0" loading="lazy" title="UseStrict's Calendly Embedder — Plugin Pulse"></iframe> UseStrict's Calendly Embedder: 2K+ active installs, 5.0★ (3 reviews). Plugin Pulse (WP Mayor), as of 2026-08-29. https://plugins.wpmayor.com/plugin/cal-embedder-lite