Flexible Checkout Fields vs Instantio — Side Cart & One-Page Checkout for WooCommerce
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
Flexible Checkout Fields leads the WordPress.org popular list today at #536, ahead of Instantio — Side Cart & One-Page Checkout for WooCommerce at #7,829. Over the last 7 days Flexible Checkout Fields held its place and Instantio — Side Cart & One-Page Checkout for WooCommerce slipped 47 places. Flexible Checkout Fields has the largest install base, roughly 114× the next: 80K+ active installs against 700+ for Instantio — Side Cart & One-Page Checkout for WooCommerce. Downloads this week: Flexible Checkout Fields 3,226 and Instantio — Side Cart & One-Page Checkout for WooCommerce 165. Ratings: Flexible Checkout Fields 4.7★ from 296 and Instantio — Side Cart & One-Page Checkout for WooCommerce 4.5★ from 16 reviews.
| Metric | Flexible Checkout Fields | Instantio — Side Cart & One-Page Checkout for WooCommerce |
|---|---|---|
| Popular rank today | #536 ▬ | #7,829 ▼ 47 |
| Active installs | 80K+ | 700+ |
| Downloads, last 7 days | 3,226 | 165 |
| Rating | 4.7★ (296) | 4.5★ (16) |
| Last updated | Sep 21, 2026 | Sep 3, 2026 |
| Current version | 4.1.42 | 3.3.36 |
| Best rank on record | #528 | #7,755 |
| Days in the top 50 | 0 | 0 |
| On WordPress.org since | Sep 2016 | Jan 2021 |
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
More comparisons
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- Flexible Checkout Fields vs FunnelKit Cart for WooCommerce
- Instantio — Side Cart & One-Page Checkout for WooCommerce vs FunnelKit Cart for WooCommerce
- Instantio — Side Cart & One-Page Checkout for WooCommerce vs Modern Cart Starter for WooCommerce
- Instantio — Side Cart & One-Page Checkout for WooCommerce vs Quick Buy Now Button for WooCommerce
Frequently asked questions
Which is more popular, Flexible Checkout Fields or Instantio — Side Cart & One-Page Checkout for WooCommerce?
By active installs, Flexible Checkout Fields: 80K+ sites run it against 700+ for Instantio — Side Cart & One-Page Checkout for WooCommerce, according to WordPress.org figures captured on October 18, 2026.
Which ranks higher on WordPress.org, Flexible Checkout Fields or Instantio — Side Cart & One-Page Checkout for WooCommerce?
Flexible Checkout Fields, at #536 on the WordPress.org popular plugins list today, with Instantio — Side Cart & One-Page Checkout for WooCommerce at #7,829. The ranking reflects recent installs and moves daily, which is why this page shows the history rather than one snapshot.
Are Flexible Checkout Fields or Instantio — Side Cart & One-Page Checkout for WooCommerce 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.