Fluent PDF Generator vs Invoice King Pro
Two WordPress plugins head to head: ranking, active installs, downloads and ratings, from our daily tracking of the WordPress.org directory.
These aren’t all alternatives to each other — they do different jobs — so this page compares popularity only, not features.
At a glance
Fluent PDF Generator leads the WordPress.org popular list today at #1,279, ahead of Invoice King Pro at #26,526. Over the last 7 days Fluent PDF Generator climbed 12 places and Invoice King Pro slipped 370 places. Fluent PDF Generator has the largest install base, roughly 1000× the next: 20K+ active installs against 20+ for Invoice King Pro. Downloads this week: Fluent PDF Generator 1,503 and Invoice King Pro 18. Ratings: Fluent PDF Generator 5★ from 6 and Invoice King Pro 4.4★ from 7 reviews.
| Metric | Fluent PDF Generator | Invoice King Pro |
|---|---|---|
| Popular rank today | #1,279 ▲ 12 | #26,526 ▼ 370 |
| Active installs | 20K+ | 20+ |
| Downloads, last 7 days | 1,503 | 18 |
| Rating | 5★ (6) | 4.4★ (7) |
| Last updated | Sep 18, 2026 | Jul 16, 2014 |
| Current version | 2.2.0 | 1.1.7 |
| Best rank on record | #1,279 | #25,187 |
| Days in the top 50 | 0 | 0 |
| On WordPress.org since | Apr 2020 | Jul 2013 |
Highlighted cells mark the strongest figure in each row. Rank and installs are from the latest WordPress.org capture; downloads are the last seven captured days.
Ranking history Lower is better
Active installs
Downloads per day
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Frequently asked questions
Which is more popular, Fluent PDF Generator or Invoice King Pro?
By active installs, Fluent PDF Generator: 20K+ sites run it against 20+ for Invoice King Pro, according to WordPress.org figures captured on October 28, 2026.
Which ranks higher on WordPress.org, Fluent PDF Generator or Invoice King Pro?
Fluent PDF Generator, at #1,279 on the WordPress.org popular plugins list today, with Invoice King Pro at #26,526. The ranking reflects recent installs and moves daily, which is why this page shows the history rather than one snapshot.
Are Fluent PDF Generator or Invoice King Pro alternatives to each other?
Not all of them. Some of these plugins do different jobs and many sites run more than one. This page compares their popularity, not their features.
Where do these numbers come from?
WordPress.org publishes each plugin’s active install count and its position on the popular list. This site records both every day, along with per-day downloads and ratings, so the charts above show how the plugins have moved over time rather than a single day.