Pushy | Out Of Stock Push Down vs Thunder Page Speed Optimizerfor Shopify (2026)
Pushy | Out Of Stock Push Down and Thunder Page Speed Optimizer both fall under the "Site optimization - Other" category on Shopify, but address vastly different pain points. Pushy directly tackles the customer experience of browsing collections by automatically moving out-of-stock items to the bottom, improving discoverability of available products. It focuses on merchandising and inventory management at the storefront level. Thunder, on the other hand, is dedicated to improving the technical performance of the Shopify store by optimizing speed, SEO, and conversion rates. Its aim is to improve overall website performance. Pushy appears to be geared toward merchants struggling with stock management and customer frustration related to finding in-stock items. Its value proposition is a cleaner, more user-friendly browsing experience. Thunder is targeted at merchants concerned with slow website loading times, SEO rankings, and high bounce rates, addressing these issues with automated speed optimization technologies. The difference lies in the user experience optimization that Pushy offers compared to the technical performance focus of Thunder.
At a Glance
Pushy | Out Of Stock Push Down
4 reviews
Thunder Page Speed Optimizer
56 reviews
Detailed Overview
Pushy | Out Of Stock Push Down
Push sold-out products to the bottom of collections automatically - so in-stock items show first!
Key Features
- Auto push-down sold-out products to bottom of collections
- Auto-restore on restock based on your collection sorting
- One-click enable for all collections (bulk mode) or per-collection controls
- Exclude specific products by tag (e.g., do-not-move)
- Real-time updates + hourly safety re-check (stays accurate)
Thunder Page Speed Optimizer
Boost website speed with Thunder's automated speed optimizing technology. Get better SEO & Sales.
Key Features
- Massively speed your store up. Boost SEO score. Lower CPMs.
- Fix apps and themes that slow down your store speed score.
- Faster websites = Less frustrated customers = More Sales
- Instant "Above The Fold" loading + Predictive preloading webpage technology
- Image compression, LazyLoaded images, Deferral of non-essential JavaScript code
Feature Comparison
| Rating | 5/5 | 4.5/5 |
Rating Pushy | Out Of Stock Push Down5/5 Thunder Page Speed Optimizer4.5/5 | ||
| Reviews | 4 | 56 |
Reviews Pushy | Out Of Stock Push Down4 Thunder Page Speed Optimizer56 | ||
| Focus | Merchandising & Inventory Display | Website Speed & Performance |
Focus Pushy | Out Of Stock Push DownMerchandising & Inventory Display Thunder Page Speed OptimizerWebsite Speed & Performance | ||
| Primary Benefit | Improved Customer Experience (Browsing) | Increased SEO, Sales, and Conversion Rates |
Primary Benefit Pushy | Out Of Stock Push DownImproved Customer Experience (Browsing) Thunder Page Speed OptimizerIncreased SEO, Sales, and Conversion Rates | ||
| Key Feature | Auto push-down sold-out products | Automated speed optimization |
Key Feature Pushy | Out Of Stock Push DownAuto push-down sold-out products Thunder Page Speed OptimizerAutomated speed optimization | ||
| Target Merchant | Merchants with frequent stock fluctuations | Merchants with slow loading times |
Target Merchant Pushy | Out Of Stock Push DownMerchants with frequent stock fluctuations Thunder Page Speed OptimizerMerchants with slow loading times | ||
| Ease of Use | One-click enablement, Shopify Admin integration | Fully automated, '1-click' optimization |
Ease of Use Pushy | Out Of Stock Push DownOne-click enablement, Shopify Admin integration Thunder Page Speed OptimizerFully automated, '1-click' optimization | ||
| Value Proposition | Cleaner collections, improved browsing experience | Faster website, increased sales, better SEO |
Value Proposition Pushy | Out Of Stock Push DownCleaner collections, improved browsing experience Thunder Page Speed OptimizerFaster website, increased sales, better SEO | ||
Our Verdict
The choice between Pushy and Thunder depends entirely on the specific needs and priorities of the Shopify merchant. If the primary concern is improving the browsing experience and managing out-of-stock products within collections, Pushy is the clear winner. Its focus on merchandising and ease of use within the Shopify Admin makes it an attractive option. However, the relatively small number of reviews should be noted.
If, on the other hand, the merchant is struggling with slow loading times, poor SEO performance, and frustrated customers due to website speed, Thunder Page Speed Optimizer is the better choice. Its automated speed optimization technology addresses the technical aspects of site performance, aiming to boost sales and conversion rates. The higher number of reviews for Thunder suggests a larger user base and more established track record, despite the slightly lower average rating.
Common Questions
Which app is easier to use?
Both apps claim to be very easy to use. Pushy offers one-click enablement and integrates directly into the Shopify Admin. Thunder offers one-click optimization and fully automated technology.
Which app provides a better return on investment (ROI)?
It depends on the specific problems the merchant is facing. If out-of-stock items are burying available products, Pushy can improve sales by making it easier for customers to find what they want. If slow loading times are killing conversions, Thunder can provide a higher ROI by increasing sales and improving SEO.
What if my store has both slow loading times and stock management issues?
Ideally, a merchant should consider using both apps. Pushy will improve the browsing experience, while Thunder addresses the underlying technical performance. If budget is a constraint, prioritize the app that addresses the more pressing issue first.
Does Pushy affect SEO?
The description doesn't explicitly mention SEO. However, improving the user experience and making it easier for customers to find in-stock products *could* indirectly improve SEO by reducing bounce rates and increasing time on site.
Does Thunder conflict with other apps?
The Thunder description claims to *fix* apps that slow down your store. However, it's always wise to test any new app thoroughly, especially one that modifies site performance, to ensure compatibility.
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