Flexible PDF Invoices for WooCommerce &… vs Client Invoicing by Sprout Invoices… (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Flexible PDF Invoices for WooCommerce &…
7.0K+ active installs
Free
Client Invoicing by Sprout Invoices…
1.0K+ active installs
Free
Quick Verdict
As of April 2026, Client Invoicing by Sprout Invoices… has a higher user rating (4.5/5 from 188 reviews) while Flexible PDF Invoices for WooCommerce &… leads in active installations (7.0K+ vs 1.0K+). Both are free WordPress plugins. Flexible PDF Invoices for WooCommerce &… has accumulated 371K+ total downloads while Client Invoicing by Sprout Invoices… has 220K+. Flexible PDF Invoices for WooCommerce &… has a higher support resolution rate (100% vs 0%).
Detailed Comparison
| Metric | Flexible PDF Invoices for WooCommerce &… | Client Invoicing by Sprout Invoices… | |
|---|---|---|---|
| Rating | 4.4/5 | ► | 4.5/5 |
| Total Reviews | 37 | ► | 188 |
| Active Installs | 7.0K+ | ◄ | 1.0K+ |
| Total Downloads | 371K+ | ◄ | 220K+ |
| Support Resolution | 100% | ◄ | 0% |
| Last Updated | 2 weeks ago | ◄ | 2 weeks ago |
| First Released | 2016 | 2014 | |
| Age | 10 years | 12 years | |
| WP Requires | 6.4+ | 5.1+ | |
| PHP Requires | 7.4+ | 7.2.5+ | |
| Business Model | Free | Free | |
| Latest Version | 6.2.12 | 20.8.11 |
Rating Breakdown
Flexible PDF Invoices for WooCommerce &…
Client Invoicing by Sprout Invoices…
Download Trends
Over the past 30 days, Flexible PDF Invoices for WooCommerce &… averaged approximately 466 daily downloads while Client Invoicing by Sprout Invoices… averaged 48.
Recent Reviews
Flexible PDF Invoices for WooCommerce &… Reviews
Excelent support
I have contacted support in the name of my company Maksimer with 2 issues regarding Flexible invoices plugin and KSeF integration. Got a prompt response that they will work on the issue soon. Usually
Excellent support
I started using the free version of the plugin, after reviewing it I decided to upgrade to the Pro version. It contains everything a regular online billing cloud does and is fully functional and relia
Super
Korzystam z wersji PRO i mimo że napotkałam kilka problemów technicznych, obsługa wsparcia okazała się naprawdę na najwyższym poziomie – szybka, konkretna i bardzo pomocna. Dziękuję za profesjonalne p
Client Invoicing by Sprout Invoices… Reviews
No Support
I have been trying to get support with this plugin (which will currently not allow me to accept payments) for over a week now to no avail. This is not the first time this has happened, usually support
Worst Support I have seen
I paid for the Pro license. Their support is among the worst that I’ve ever seen. They never respond to any of the tickets.
does NOT work, No support
Bought the plugin, installed it and it had issues. Contacted support multiple times, never got a reply. requested refund multiple times no response. Disputing through paypal now.DO NOT recommend.
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Frequently Asked Questions
Is Flexible PDF Invoices for WooCommerce &… or Client Invoicing by Sprout Invoices… more popular?
Which has better ratings — Flexible PDF Invoices for WooCommerce &… or Client Invoicing by Sprout Invoices…?
Are Flexible PDF Invoices for WooCommerce &… and Client Invoicing by Sprout Invoices… free?
Which plugin has better support — Flexible PDF Invoices for WooCommerce &… or Client Invoicing by Sprout Invoices…?
Which plugin is updated more frequently?
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.