Smush – Image Optimization… vs Robin Image Optimizer – Unlimited Image… (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Smush – Image Optimization…
1.0M+ active installs
Free + Premium
Robin Image Optimizer – Unlimited Image…
100K+ active installs
Free
Quick Verdict
As of April 2026, Smush – Image Optimization… has a higher user rating (4.8/5 from 6,034 reviews) and leads in active installations (1.0M+ vs 100K+). Both are free + premium WordPress plugins. Smush – Image Optimization… has accumulated 64M+ total downloads while Robin Image Optimizer – Unlimited Image… has 2.1M+. Robin Image Optimizer – Unlimited Image… has a higher support resolution rate (100% vs 100%).
Detailed Comparison
| Metric | Smush – Image Optimization… | Robin Image Optimizer – Unlimited Image… | |
|---|---|---|---|
| Rating | 4.8/5 | ◄ | 4.4/5 |
| Total Reviews | 6,034 | ◄ | 125 |
| Active Installs | 1.0M+ | ◄ | 100K+ |
| Total Downloads | 64M+ | ◄ | 2.1M+ |
| Support Resolution | 100% | 100% | |
| Last Updated | 3 days ago | ◄ | 3 weeks ago |
| First Released | 2008 | 2018 | |
| Age | 18 years | 8 years | |
| WP Requires | 6.4+ | 5.6+ | |
| PHP Requires | 7.4+ | 7.4+ | |
| Business Model | Free + Premium | Free | |
| Latest Version | 3.24.0 | 2.0.4 |
Rating Breakdown
Smush – Image Optimization…
Robin Image Optimizer – Unlimited Image…
Download Trends
Over the past 30 days, Smush – Image Optimization… averaged approximately 8,078 daily downloads while Robin Image Optimizer – Unlimited Image… averaged 1,567.
Recent Reviews
Smush – Image Optimization… Reviews
Best App Category
Thanks for supporting our website.
Great Plugin
Großartiges Plugin um Bilder zu optimieren.
Super Helpful
Good plugin for compressing images in WordPress. Setup took just a minute, and it started optimizing right away. Site speed improved a bit, too. tnx devs for this.
Robin Image Optimizer – Unlimited Image… Reviews
Well done
It would be nice to add disabling scheduled launch. Manual only
Best Plugin
The best plugin for image optimization. But after the latest update, there’s a delay when converting Image Features to webp. Although it might just be my feeling. BTW, thanks.
Utter Waste Of Time
Your “fix” lasted for about three minutes. I have since then waited to give you time to migrate your servers. I have uninstalled and reinstalled the plugin several times. I have tried to get it to opt
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Frequently Asked Questions
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.