Smart Size Chart & Size Guide vs Stamp ‑ Variants on Collectionfor Shopify (2026)
Smart Size Chart & Size Guide and Stamp ‑ Variants on Collection are both Shopify apps aimed at improving product discoverability and conversion, but they tackle different aspects of the customer journey. Smart Size Chart focuses on helping customers find the right size, minimizing returns and increasing sales through better fit guidance. It targets merchants selling apparel, shoes, jewelry, or any product where size is a crucial factor. Stamp ‑ Variants on Collection, on the other hand, focuses on improving product browsing by displaying product variants more effectively on collection pages. The key difference lies in their core functionality. Smart Size Chart provides customizable size charts and guides, while Stamp ‑ Variants on Collection allows merchants to display variants as separate products, control variant visibility, and improve variant sorting on collection pages. Both apps fall under the 'Product display', 'Custom products', and 'Product variants' categories, but Smart Size Chart caters to the 'fit' issue, while Stamp improves product navigation and discovery on collection pages. While both aim to boost sales, they achieve this through drastically different methods.
At a Glance
Smart Size Chart & Size Guide
103 reviews
Stamp ‑ Variants on Collection
36 reviews
Detailed Overview
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.
Stamp ‑ Variants on Collection
Show product variants on collection page or show variants price range with Stamp. Boost your sale!
Key Features
- Stamp show variants as separate products on collection pages or show price range
- Split variants as products on homepage, search results or any collection pages
- Hide unavailable/no image variants, Mix variants, Infinite scroll, Add to cart..
- Sort variants manually, show selected variants, customize setting per collection
- Smart collection sort products and variants on collection pages by best-seller
Feature Comparison
| Rating | 5/5 | 4.9/5 |
Rating Smart Size Chart & Size Guide5/5 Stamp ‑ Variants on Collection4.9/5 | ||
| Reviews | 103 | 36 |
Reviews Smart Size Chart & Size Guide103 Stamp ‑ Variants on Collection36 | ||
| Core Functionality | Customizable Size Charts and Guides | Variant Display and Management on Collection Pages |
Core Functionality Smart Size Chart & Size GuideCustomizable Size Charts and Guides Stamp ‑ Variants on CollectionVariant Display and Management on Collection Pages | ||
| Target Merchant | Apparel, Shoe, Jewelry retailers | Retailers with numerous product variants |
Target Merchant Smart Size Chart & Size GuideApparel, Shoe, Jewelry retailers Stamp ‑ Variants on CollectionRetailers with numerous product variants | ||
| Key Benefit | Reduced returns and increased sales through better fit | Improved product discoverability and navigation |
Key Benefit Smart Size Chart & Size GuideReduced returns and increased sales through better fit Stamp ‑ Variants on CollectionImproved product discoverability and navigation | ||
| Customization | Highly customizable design and content | Customizable display settings per collection |
Customization Smart Size Chart & Size GuideHighly customizable design and content Stamp ‑ Variants on CollectionCustomizable display settings per collection | ||
| Focus | Size Accuracy and Customer Satisfaction | Variant Visibility and Collection Page Organization |
Focus Smart Size Chart & Size GuideSize Accuracy and Customer Satisfaction Stamp ‑ Variants on CollectionVariant Visibility and Collection Page Organization | ||
Our Verdict
For merchants struggling with high return rates due to sizing issues, Smart Size Chart & Size Guide is the clear choice. Its emphasis on creating comprehensive and visually appealing size charts directly addresses the problem of customers ordering the wrong size. The higher rating and significantly more reviews also suggest a stronger user satisfaction.
However, if a merchant's primary concern is improving the browsing experience for customers navigating through products with many variants, Stamp ‑ Variants on Collection offers valuable features like displaying variants separately and providing greater control over variant visibility. It helps customers easily find the desired variant without navigating through numerous product pages. The choice hinges on identifying the biggest friction point in the customer's purchase journey: size selection or variant discovery.
Common Questions
Which app is easier to set up?
Based on the descriptions, Smart Size Chart & Size Guide seems straightforward to set up due to the claim of creating and managing size tables in minutes. Stamp does mention full control over variants which suggests more configuration effort, though more flexibility.
Does either app offer a free plan?
The provided data does not specify if either app offers a free plan. Further research on the Shopify App Store would be needed to confirm this.
Which app is better for international stores?
Smart Size Chart & Size Guide explicitly mentions multi-language support, making it a better option for international stores if sizing varies across regions. Stamp does not mention any language support features.
Which app addresses SEO?
Neither app explicitly mentions SEO benefits in their description. However, better product navigation (Stamp) and more accurate size selection (Smart Size Chart) could indirectly improve SEO by improving user engagement and reducing bounce rates.
Which app will improve mobile conversion rates?
Both apps aim to improve mobile conversion rates, but in different ways. Smart Size Chart's responsive design ensures size charts are easily viewable on mobile, reducing size-related hesitancy. Stamp improves mobile browsing by presenting variants more clearly, allowing for faster selection and purchase.
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