iframe vs UseStrict's Calendly Embedder (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
UseStrict's Calendly Embedder
2.0K+ active installs
Free
Quick Verdict
As of April 2026, UseStrict's Calendly Embedder has a higher user rating (5/5 from 3 reviews) while iframe leads in active installations (70K+ vs 2.0K+). Both are free WordPress plugins. iframe has accumulated 1.9M+ total downloads while UseStrict's Calendly Embedder has 25K+.
Detailed Comparison
| Metric | iframe | UseStrict's Calendly Embedder | |
|---|---|---|---|
| Rating | 4.4/5 | ► | 5/5 |
| Total Reviews | 56 | ◄ | 3 |
| Active Installs | 70K+ | ◄ | 2.0K+ |
| Total Downloads | 1.9M+ | ◄ | 25K+ |
| Support Resolution | N/A | N/A | |
| Last Updated | 3 months ago | ◄ | 4 months ago |
| First Released | 2011 | 2021 | |
| Age | 15 years | 5 years | |
| WP Requires | 3.0+ | 4.5+ | |
| PHP Requires | false+ | 7.4+ | |
| Business Model | Free | Free | |
| Latest Version | 6.0 | 1.2 |
Rating Breakdown
iframe
UseStrict's Calendly Embedder
Download Trends
Over the past 30 days, iframe averaged approximately 201 daily downloads while UseStrict's Calendly Embedder averaged 12.
Recent Reviews
iframe Reviews
works just fine
I’ve been using this for several years to embed a public webcam livestream. And also using it to embed google docs. I download the google doc as html, put it on the same server where wordpress is, and
Like they said, it simply does NOT work AT ALL
It does not work AT ALL. You can enter all the shortcodes you like in as many widgets and text boxes as you like. And they do ABSOLUTELY NOTHING. This is total fakeware.
Fast Support and Easy to Use
An easy to use plugin with fast and practical support from its developer. More frequently and providing options to generate the shortcode on the posting page could make it even better! Thanks so much!
UseStrict's Calendly Embedder Reviews
Fantastic little plugin
Was having real issues getting Calendly to populate from query strings until I used this! Great plugin.
Simple to Use and Works Perfectly
I wanted to install Calendly on my podcast site for approved guests to be able to book a time. I didn’t want them to have to click a link to open a tab into my calendar. After trying a few different m
Simple and works great!
Thank you, made it very easy to embed the Calendly calendar.
More Plugins Worth Comparing
Top alternatives in the same category as iframe and UseStrict's Calendly Embedder
EmbedPress lets you embed videos, pages, social feeds, embed PDF 3D flipbooks & other content on WordPress without coding & enhance storytelling.
Insert Pages lets you embed any WordPress content (e.g., pages, posts, custom post types) into other WordPress content using the Shortcode API.
Include content the way YOU like in an iframe that can hide and modify elements, does auto-height, forward parameters and does many, many more...
Level up your basic video embeds! Advanced features, privacy. Use URLs, Shortcodes or Blocks to customize videos to your needs.
Embed a PDF from the Media Library or elsewhere via oEmbed or as a block into an iframe tag.
A Compact WP Audio Player Plugin that is compatible with all major browsers and devices (Android, iPhone, iPad)
Frequently Asked Questions
Is iframe or UseStrict's Calendly Embedder more popular?
Which has better ratings — iframe or UseStrict's Calendly Embedder?
Are iframe and UseStrict's Calendly Embedder free?
Which plugin has better support — iframe or UseStrict's Calendly Embedder?
Which plugin is updated more frequently?
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.