WordPress plugin comparison
Image Optimizer vs Ultimate Extension for ACF
At a glance
- Image Optimizer has more active installs: 1M+, against 20+ for Ultimate Extension for ACF.
- On a typical day, Image Optimizer is downloaded about 5,537 times, Ultimate Extension for ACF about 4.
- Ultimate Extension for ACF has no reviews yet.
- Ultimate Extension for ACF was updated more recently: Oct 2, 2026, against Sep 22, 2026 for Image Optimizer.
- Image Optimizer is tested with a newer WordPress: 7.0.8, against 6.8.12 for Ultimate Extension for ACF.
- Image Optimizer has been around longer: since 2024, against 2025 for Ultimate Extension for ACF.
Line by line
Image Optimizer leads on 5 of 6 comparable lines.
| Metric |  Image Optimizer |  Ultimate Extension for ACF |
|---|---|---|
| Popular rank | #58 | #25,374 |
| Active installs | 1M+ | 20+ |
| Downloads, last 30 days | 174.3K | 137 |
| Rating | 1.7(81) | No ratings |
| Support threads resolved | 100% | – |
| Tested up to | 7.0.8 | 6.8.12 |
| Search multiplier | ×1.28 | ×0.13 |
| Last release | 1 month ago | 1 month ago |
| Requires PHP | 7.4 | 7.4 |
From WordPress.org's public data, refreshed every night. Downloads are WordPress.org's official daily figures for the last 30 days.
Tags they share
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