At a glance
ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF
Optimize images & PDFs smartly. Create and compress next-gen WebP and AVIF formats. Smart crop and resize.
APCu Manager
APCu statistics and management right in the WordPress admin dashboard.
Full Comparison
Technical Specs
| Metric | ShortPixel Image Optimizer | APCu Manager |
|---|---|---|
| Requires WP | 4.8.0+ | 6.4+ |
| Requires PHP | 7.4+ | 8.2+ |
| Tested up to WP | 7.0 | 7.0.1 |
| Plugin age | 12 yrs | 6 yrs |
Quick Verdict
APCu Manager wins this comparison. With a 90% five-star rating from its user base, it delivers exactly what it promises: clear cache statistics and management inside your WordPress admin. ShortPixel Image Optimizer serves a different purpose (image compression), but APCu Manager is the better plugin based on user satisfaction and its focused feature set. If you need object cache oversight, pick APCu Manager.
Feature Comparison: ShortPixel Image Optimizer vs APCu Manager
| Feature | ShortPixel Image Optimizer | APCu Manager |
|---|---|---|
| Primary function | Optimize images and PDFs, convert to WebP and AVIF | APCu cache statistics and management in WordPress admin |
| Image format support | WebP and AVIF creation and compression | Not applicable |
| Image resizing | Smart crop and resize | Not applicable |
| PDF optimization | Yes | Not applicable |
| Cache monitoring | Not applicable | APCu statistics dashboard |
| Object cache management | Not applicable | Yes |
| W3 Total Cache integration | Not applicable | Tagged for compatibility |
Who Should Use ShortPixel Image Optimizer
- Site owners who need to convert images to WebP in WordPress without losing quality. ShortPixel Image Optimizer is the best image optimization plugin WordPress users turn to for this task, with 300K+ active installs trusting its compression engine.
- Teams running media-heavy sites who want to compress images in WordPress without losing quality. The plugin supports both WebP and AVIF next-gen formats, giving you two compression paths.
- Anyone who values high user approval. 86% of reviewers give it 5 stars, and it remains the top choice for those asking how to compress images in WordPress without losing quality.
Who Should Use APCu Manager
- Developers and site managers who need to view APCu stats in WordPress admin directly. APCu Manager puts cache hit rates, memory usage, and entry counts on a clean dashboard screen.
- Users running W3 Total Cache or other caching layers who want the best APCu plugin WordPress can offer. APCu Manager is tagged specifically for W3TC compatibility.
- Anyone who prefers a focused, single-purpose tool. 90% of its reviewers give it 5 stars, reflecting satisfaction with its narrow scope and reliable performance.
Community & Support
ShortPixel Image Optimizer holds 86% five-star ratings and 9% one-star ratings from 814 total reviews. APCu Manager shows 90% five-star ratings and 10% one-star ratings from 20 reviews. Both plugins had 2 open support threads in the last 2 months, but the sample size is too small to draw conclusions about resolution speed or quality.
Verdict: ShortPixel Image Optimizer or APCu Manager for WordPress sites?
Pick ShortPixel Image Optimizer if your priority is image compression. It has 30x more installs than APCu Manager and handles the full cycle of optimizing images, converting to WebP, and resizing. It is the best image optimization plugin WordPress users choose for media workflows.
Pick APCu Manager if you need object cache visibility. Its 90% five-star rating beats ShortPixel Image Optimizer's 86%, and it solves a specific problem: how to view APCu stats in WordPress without bloat. For cache management, APCu Manager is the clear winner.
This comparison is AI-generated from live WordPress.org data. Install counts, ratings, versions and support statistics sync weekly, so the numbers on this page stay current. Content passes automated quality checks before publishing, and pages below our quality threshold are held for human review.
Read our full methodologyFrequently Asked Questions
Q How many people use ShortPixel Image Optimizer compared to APCu Manager?
ShortPixel Image Optimizer has 300K+ active installs while APCu Manager has 10K+, meaning ShortPixel Image Optimizer is used on more sites.
Q Which has better user ratings — ShortPixel Image Optimizer or APCu Manager?
APCu Manager averages 4.6/5 from 20 reviews, while ShortPixel Image Optimizer averages 4.5/5 from 814 reviews — APCu Manager has the higher average rating.
Q Which is more actively maintained — ShortPixel Image Optimizer or APCu Manager?
ShortPixel Image Optimizer was last updated on Jun 4, 2026 and APCu Manager on Jun 3, 2026, so ShortPixel Image Optimizer received the more recent update.
Q Are ShortPixel Image Optimizer and APCu Manager both free?
Yes — both ShortPixel Image Optimizer and APCu Manager are free to install from the official WordPress.org plugin directory. Some features may require a paid upgrade offered by the plugin author.
Q Is ShortPixel Image Optimizer or APCu Manager better for WordPress sites?
For most sites, ShortPixel Image Optimizer is better because it directly tackles the biggest speed killer: unoptimized images. APCu Manager is a niche tool for caching PHP objects, which helps only if your site uses object caching heavily. If you want faster load times from your media library, ShortPixel is the clear choice.
Q Which is easier to set up for a WordPress beginner — ShortPixel Image Optimizer or APCu Manager?
ShortPixel Image Optimizer is much easier for a beginner. You install it, set your compression level, and it automatically optimizes images as you upload them. APCu Manager requires you to understand server-level caching and often needs extra configuration with plugins like W3 Total Cache.
Q What is the biggest feature difference between ShortPixel Image Optimizer and APCu Manager?
ShortPixel Image Optimizer focuses on compressing, resizing, and converting images to WebP, which is what most site owners need. APCu Manager is an object cache monitor and manager that has nothing to do with images. They solve completely different problems: one speeds up images, the other speeds up database queries.
Q Can you switch from ShortPixel Image Optimizer to APCu Manager (or the other way) without losing data?
Yes, you can switch because they handle entirely separate parts of WordPress. ShortPixel optimizes your image files, and APCu Manager caches PHP objects, so uninstalling one does not affect the other's data. Just deactivate and delete the plugin you no longer need, and your images or cache settings will remain as they were.
Q Which type of site should choose ShortPixel Image Optimizer, and which should choose APCu Manager?
Choose ShortPixel Image Optimizer if you run any site with images, especially WooCommerce stores or blogs with lots of photos. Pick APCu Manager only if you already use object caching plugins like W3 Total Cache and need a tool to monitor or clear that cache. For 99% of sites, ShortPixel is the better investment.
More Performance & Caching Comparisons
OMGF vs Jetpack Boost
Breeze Cache vs OMGF
Imagify vs Converter for Media
WP-Optimize vs CLP Varnish Cache
WP Fastest Cache vs SpeedyCache
Smush vs Imagify
WP-Optimize vs Breeze Cache
OMGF vs Featherweight