Invoice King Pro

How well this listing is tuned to rank in WordPress.org search, on the factors an owner controls. Not popularity, optimization.

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

How often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.

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.

Refined from the date this plugin crossed into its current band.

A small install base leaves thin data to model from. 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.

1. ★★★★★ ptrv

   10.4y ago

   Saves me time and stamps.

   Read on wp.org ↗
2. ★★★★★ mukii

   10.5y ago

   this plugin works as i wanted except the pdf style which is somewhere catch the feeling of black/white.

   Read on wp.org ↗
3. ★★★★★ Barnabas

   10.9y ago

   Hi, Lovely solution and a nifty plugin. May I as if it support sending quote to client and changing the currency symbol to our local currency? We are looking to invest into the plugin and answering these questions will help us to make informed decision. With Regards

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4. ★★★★★ roadfox

   11.8y ago

   if you are looking for a system to create pdf invoices for “manual” payment, then invoice king pro is great. i was easy able to adapt it to german, and to other specific needs for invoices in my country. a “publish and send” button would be nice instead of the two step process of publishing the invoice and then not to forget to send it 😉

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5. ★★★★★ cmwwebfx

   12.8y ago

   Cannot really fault the plugin. It does what it says on the box, however if you are looking for a fully fledged heavy invoicing system, then this is not it. But no other plugins come close to what this does as a WordPress invoicing plugin. Support is responsive. Ticks all my boxes.

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6. ★★★★★ Huroman

   13.1y ago

   There’s some bug when you’re saving the invoice using defaul theme: Warning: Invalid argument supplied for foreach() in /home/lapetit1/public_html/huriata.com/wp-content/plugins/invoice-king-pro/themes/default/invoice_html.php on line 46 Anyway, you’re plugin is easy to understand and easy but it lacks of some report tools. I don’t mind to pay for it if there could be reports for: Total sellings (and for day, week or month), unpaid invoices, and having a client’s history. Would be great if all the reports are ready for being sent by email (or PDF). BTW, you’re templates are in good price.

   Read on wp.org ↗
7. ★★★★★ Mark

   13.2y ago

   Looking good, easy to use, can use some more help instructions: – needs write permissions in .\outputs folder – Invoice can be viewed and emailed as PDF in the ‘All invoices’ menu. – No front-end HTML view of invoice, which you may expect for clients. But it’s not really necessary. The following features would make it a killer plug-in: – Recurring invoices, sending them automatically – Sending email copy to a globally set cc: email adress – Custom invoice numbering format (Ymdxx = 2013071101, 2013071102, 2013110703, ..) (http://codex.wordpress.org/Formatting_Date_and_Time)

   Read on wp.org ↗

Automated install-time checks, tested on PHP 7.2.16 · WP 5.2.4

Growth timeline

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

1. 2026-06-08 30+ → 20+ down after 10 days in tier
2. 2026-05-29 20+ → 30+ up after 1 days in tier
3. 2026-05-28 30+ → 20+ down after 11 days in tier
4. 2026-05-17 20+ → 30+ up after 23 days in tier
5. 2026-04-24 30+ → 20+ down after 34 days in tier
6. 2026-03-21 20+ → 30+ up after 76 days in tier
7. 2026-01-04 30+ → 20+ down after 360 days in tier
8. 2025-01-09 40+ → 30+ down after 40 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).

• Sliced Invoices – WordPress Invoice Plugin 5K+ installs · 4.5★ · 2 shared tags A
• Sprout Invoices – Client Invoicing & Estimates 1K+ installs · 4.4★ · 2 shared tags A
• Quotes Addon for GetPaid 600+ installs · 3.6★ · 2 shared tags B
• WP Forms + Sprout Invoices – Easy Invoice & Quote Submissions 400+ installs · 4.0★ · 2 shared tags B
• Formidable Forms + Sprout Invoices – Easy Invoice & Estimate Submissions 200+ installs · 3.8★ · 2 shared tags B
• Vendus 200+ installs · 3.6★ · 2 shared tags D

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Invoice King Pro: 20+ active installs, 4.4★ (7 reviews). Plugin Pulse (WP Mayor), as of 2026-09-01. https://plugins.wpmayor.com/plugin/invoice-king-pro