Is Ninja Forms + Sprout Invoices free?

Yes, Ninja Forms + Sprout Invoices is free to use. It is available as a free plugin on WordPress.org.

How many websites use Ninja Forms + Sprout Invoices?

Ninja Forms + Sprout Invoices has 70 active installations as tracked by WordPress.org.

What are the best Ninja Forms + Sprout Invoices alternatives?

Popular alternatives to Ninja Forms + Sprout Invoices include WHMCS Bridge, Client Invoicing by Sprout Invoices…, Subscription & Recurring Payment for…. You can compare them side-by-side on our comparison pages.

Does Ninja Forms + Sprout Invoices work with the latest WordPress?

Ninja Forms + Sprout Invoices has been tested up to WordPress 6.9.4. It requires WordPress 4.8+ and PHP false+.

Ninja Forms + Sprout Invoices – Easy Invoice & Estimate Submissions — Reviews, Rating & Alternatives (2026)

As of April 2026, Ninja Forms + Sprout Invoices is a WordPress Billing plugin with 70 active installations and a 3.7/5 rating from 3 reviews. It has been downloaded 5.5K+ times in total. Requires WordPress 4.8+ and PHP false+. Available on WordPress.org since 2018. Top alternative: WHMCS Bridge.

3.7/53 reviews

70active installs

5.5K+total downloads

8 yearssince 2018

Overview

Speed up the process of getting paid!

The Ninja Forms + Sprout Invoices plugin allows you to build an easy solution to creating dynamic invoices and estimates based on the prospective client’s form selections. Use Ninja Forms’ product fields or Sprout Invoices’ pre-defined line items to help create an estimate or invoice with the correct totals, and without you having to manage anything after submission.

Invoice, Estimate / Quote, & Online Payments with Sprout Invoices Features

If you’re not familiar with Sprout Invoices…it allows you to reduce the time spent fielding project requests, estimating projects, invoicing clients, & getting paid.