Krasimir Ignatov

Freeslot Calendar is a lightweight WordPress plugin that publishes a clean monthly availability view on any page or post. It’s built for freelancers, designers, photographers, consultants, and small studios who want visitors to see at a glance which days are open and which are busy, without exposing a full booking system.
Events live in your WordPress admin like any other content. The public calendar reads from them and paints each day as Free, Partially busy, or Fully busy based on your working hours.
<h4>Key features</h4>
<ul>
<li>Drop-in shortcode — <code>[igcal_availability]</code> renders the calendar anywhere.</li>
<li>Bilingual out of the box — Bulgarian and English, per-event title and note translations, automatic locale switching.</li>
<li>Working-hours aware — partial vs. full busy status is computed from your actual day, not a guess.</li>
<li>Recurring events — daily, weekly, monthly, with an end date.</li>
<li>Per-event color, image, and category for richer day-detail cards.</li>
<li>Customizable Contact CTA — label, colors, size, and the URL it links to.</li>
<li>Customizable header — change the calendar’s title and subtitle per language, or pass a <code>title="..."</code> shortcode attribute.</li>
<li>Accessible — full keyboard navigation (arrows, Home/End, PageUp/Down), ARIA roles, screen-reader announcements on month change.</li>
<li>Mobile responsive — two-stage breakpoints, dense list view on phones.</li>
<li>AJAX month navigation with skeleton loader and cross-fade transitions.</li>
<li>Cached — each month grid is cached per language and invalidated automatically when events or settings change.</li>
<li>No tracking, no external calls — your data stays on your site.</li>
</ul>
<h4>Shortcode attributes</h4>
<ul>
<li><code>months</code> — number of months to render (default <code>1</code>).</li>
<li><code>lang</code> — <code>auto</code> (follow site locale), <code>bg</code>, or <code>en</code>.</li>
<li><code>title</code> — override the header title for this instance.</li>
<li><code>show_legend</code> — <code>1</code> or <code>0</code>.</li>
<li><code>show_cta</code> — show the bottom Contact CTA bar (<code>1</code> or <code>0</code>).</li>
</ul>
Example:
<pre><code>[igcal_availability lang="en" months="3" show_cta="0"]
</code></pre>

Freeslot Calendar

Read-only availability calendar with admin-managed events. Bilingual (BG/EN), shortcode-driven. Show visitors when you're free, no booking system.

eazinvoice

EazInvoice helps WordPress site owners connect visitors, customers, and internal teams to a modern MSME invoicing workspace.
The free plugin gives the site owner an embedded EazInvoice workspace inside WordPress, account connection fields, and an automatic EazInvoice button on the public website. A shortcode remains available for custom placement on service pages, contact pages, or customer portals.
<h4>Free Features</h4>
<ul>
<li>EazInvoice admin settings page</li>
<li>Embedded WordPress dashboard</li>
<li>Embedded create invoice screen</li>
<li>Embedded PO / WO creation screen</li>
<li>API Access page for connecting an EazInvoice account</li>
<li>Account email and workspace URL settings</li>
<li>Basic API key field for future connection</li>
<li>Optional compact public website invoice tab that opens the embedded WordPress invoice screen after the site owner enables it</li>
<li>Optional invoice CTA shortcode: <code>[eazinvoice_button]</code></li>
<li>Legacy shortcode alias: <code>[eazinvoice_free_invoice]</code></li>
<li>Local free-tier draft and created records for invoices and PO/WO documents</li>
<li>Branded upgrade panel for EazInvoice Pro</li>
</ul>
<h4>Paid WordPress Pro Roadmap</h4>
The paid version is sold independently from eazinvoice.com and can include:
<ul>
<li>License/API validation from EazInvoice subscription</li>
<li>Service inquiry to invoice draft</li>
<li>B2B quotation and invoice workflows</li>
<li>Customer and service mapping</li>
<li>Payment status automation</li>
<li>Invoice PDF/download links</li>
<li>Purchase Order / Work Order integration</li>
<li>GST-ready reports</li>
<li>Optional WooCommerce integration</li>
<li>Priority support and license-key updates</li>
</ul>

EazInvoice Billing Workspace for MSMEs

Embedded EazInvoice billing workspace for WordPress MSMEs, freelancers, service businesses, and B2B sellers.

Freeslot Calendar vs EazInvoice Billing Workspace for MSMEs