Sink | Push Down Out of Stock vs Smart Size Chart & Size Guidefor Shopify (2026)
Sink | Push Down Out of Stock and Smart Size Chart & Size Guide are both 5-star rated apps in the Shopify app store, but they address fundamentally different needs for online merchants. Sink focuses on improving the customer shopping experience by automatically managing product visibility based on stock levels, essentially decluttering collections and highlighting available items. This helps customers find in-stock products faster and reduces frustration caused by out-of-stock items. Smart Size Chart & Size Guide, on the other hand, is designed to enhance the product detail page and improve the likelihood of a successful purchase by addressing sizing concerns. It allows merchants to create customizable and visually appealing size charts for various product categories, reducing returns and increasing customer confidence. While both apps aim to improve the shopping experience, Sink focuses on collection organization and inventory management presentation, while Smart Size focuses on product-specific sizing guidance. The biggest differentiator besides functionality, is the larger amount of reviews (103) for Smart Size Chart & Size Guide compared to Sink | Push Down Out of Stock (16).
At a Glance
Sink | Push Down Out of Stock
16 reviews
Smart Size Chart & Size Guide
103 reviews
Detailed Overview
Sink | Push Down Out of Stock
Auto Push sold-out products down and sort collections to highlight and boost in-stock visibility
Key Features
- Automatically move out-of-stock items to the bottom of collections
- Sort products by Best Selling, Product Title, Price, Manually, and more
- Collections update instantly as stock levels change
Smart Size Chart & Size Guide
Increase sales with stylish, unlimited size charts and size guides that fit your brand design.
Key Features
- Highly customizable: Add images, brand colors, fonts, and adjust popup position.
- Content-rich: Size chart templates for clothing, shoes, jewelry, pets, and more.
- Responsive design: Size charts look perfectly on mobile, desktop, and tablets.
- Lightweight app: Installs easily and removes cleanly without leftover code.
- Advanced features: Multi-language size charts, tabs for multiple size guides.
Feature Comparison
| Rating | 5/5 | 5/5 |
Rating Sink | Push Down Out of Stock5/5 Smart Size Chart & Size Guide5/5 | ||
| Reviews | 16 | 103 |
Reviews Sink | Push Down Out of Stock16 Smart Size Chart & Size Guide103 | ||
| Primary Function | Automatic product sorting based on stock | Creation and display of size charts |
Primary Function Sink | Push Down Out of StockAutomatic product sorting based on stock Smart Size Chart & Size GuideCreation and display of size charts | ||
| Key Benefit | Improved collection organization & visibility of in-stock items | Reduced returns & increased customer confidence in sizing |
Key Benefit Sink | Push Down Out of StockImproved collection organization & visibility of in-stock items Smart Size Chart & Size GuideReduced returns & increased customer confidence in sizing | ||
| Target Merchant | Merchants with frequently changing inventory levels | Merchants selling clothing, shoes, jewelry, or other sized items |
Target Merchant Sink | Push Down Out of StockMerchants with frequently changing inventory levels Smart Size Chart & Size GuideMerchants selling clothing, shoes, jewelry, or other sized items | ||
| Ease of Use (Inferred) | Likely easy, focuses on automation | Requires setup and maintenance of size charts |
Ease of Use (Inferred) Sink | Push Down Out of StockLikely easy, focuses on automation Smart Size Chart & Size GuideRequires setup and maintenance of size charts | ||
| Value Proposition | Clean, organized storefront focusing on in-stock items, increased sales | Improved customer experience through sizing guidance, reduced returns, increased sales |
Value Proposition Sink | Push Down Out of StockClean, organized storefront focusing on in-stock items, increased sales Smart Size Chart & Size GuideImproved customer experience through sizing guidance, reduced returns, increased sales | ||
| Customization | Limited to sorting rules | Highly customizable size chart design |
Customization Sink | Push Down Out of StockLimited to sorting rules Smart Size Chart & Size GuideHighly customizable size chart design | ||
Our Verdict
The choice between Sink and Smart Size Chart & Size Guide depends entirely on the specific needs of the merchant. If a store struggles with cluttered collections due to frequent stock fluctuations and wants to improve the visibility of available products, Sink | Push Down Out of Stock is the ideal solution. The automation feature is key for merchants who don't want to manually manage product placement.
On the other hand, if a store sells products where sizing is a critical factor (clothing, shoes, etc.), Smart Size Chart & Size Guide is the better investment. The ability to create visually appealing and accurate size charts directly addresses customer concerns and reduces the likelihood of returns, potentially leading to increased sales and customer satisfaction. The higher review count for Smart Size Chart & Size Guide also suggests a greater level of established trust.
Common Questions
Do these apps work together?
While both apps enhance the shopping experience, they address different areas, making direct interaction unnecessary. They can be used simultaneously to address both product visibility and sizing concerns.
Which app is easier to set up?
Sink is likely easier to set up, as it primarily involves configuring sorting rules. Smart Size Chart & Size Guide requires creating and customizing size charts, which is more involved.
How does Sink impact SEO?
By consistently showing in-stock items prominently, Sink indirectly improves SEO by directing customers to products they can actually purchase, reducing bounce rates and increasing conversion rates. Direct SEO benefit is unstated.
Can Smart Size Chart & Size Guide handle multiple languages?
Yes, Smart Size Chart & Size Guide includes multi-language support, allowing merchants to cater to a global customer base.
Which app offers a free plan?
Information about free plans isn't available in the description. Reviewing the app details on the Shopify App Store is necessary to confirm free plan options for either app.
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