Invoice Ninja

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

Directory rank

wp.org popularity rank over time · lower is better

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.

No paid tier is visible, so we don't put a figure on revenue or sale value: that would be guessing. The install base is a real asset to an acquirer, just not one public data lets us price. A small install base leaves thin data to model from.

1. ★★★★★ daisycutter

   4mo ago

   Just spent 4 hours troubleshooting why my customers were getting an error message when completing purchases. A plugin update to the unused InvoiceNinja plugin on 9 May caused all customer checkout attempts to fail with a generic payment error. The plugin hooks into WooCommerce’s order creation process and, following the update, threw an uncaught exception when attempting to read a null object, silently killing the order creation flow before any order or payment could be processed. Deactivating the plugin immediately resolved the issue. This topic was modified 2 months, 1 week ago by daisycutter. Reason: Developer followed up to my review very quickly and has indicated that a fix will be released promptly. I have updated my initial 1 star review to a 3 star review based on that

   Read on wp.org ↗
2. ★★★★★ Pineapple is DISGUSTING on Pizza

   1.4y ago

   This is looking good, however there are a few things missing that won’t allow me to actually use it: – Recurring intervals (it’s the only kind of service I offer) – Pricing tiers (separate items would work but are inconvenient and bloaty?) Will keep an eye on this though. Invoice Ninja is fantastic! Thanks for putting your time into making a connection here.

   Read on wp.org ↗

Automated install-time checks, tested on PHP 8.1.12 · WP 7.0

Growth timeline

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

1. 2025-10-17 90+ → 100+ up after 2 days in tier
2. 2025-10-15 100+ → 90+ down after 1 days in tier
3. 2025-10-14 90+ → 100+ up after 1 days in tier
4. 2025-10-13 100+ → 90+ down after 3 days in tier
5. 2025-10-10 90+ → 100+ up after 36 days in tier
6. 2025-09-04 80+ → 90+ up after 5 days in tier
7. 2025-08-30 90+ → 80+ down after 16 days in tier
8. 2025-08-14 80+ → 90+ up after 1 days in tier

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Invoice Ninja: 100+ active installs, 4.0★ (2 reviews). Plugin Pulse (WP Mayor), as of 2026-08-31. https://plugins.wpmayor.com/plugin/invoiceninja