MP Size Chart & Size Guide vs Stamp ‑ Variants on Collectionfor Shopify (2026)
MP Size Chart & Size Guide and Stamp ‑ Variants on Collection address fundamentally different challenges for Shopify merchants. MP Size Chart & Size Guide focuses on apparel businesses combating returns and cart abandonment due to sizing uncertainty. Its strength lies in providing customizable size charts, size recommendations, and unit conversions, aiming to boost confidence and sales. Stamp ‑ Variants on Collection, on the other hand, tackles product discovery and conversion on collection pages by allowing merchants to showcase product variants individually, creating a visually richer and more easily navigable shopping experience. The key difference lies in their purpose. MP Size Chart & Size Guide is a conversion optimization tool specific to businesses selling apparel and related items, while Stamp ‑ Variants on Collection is a catalog management and merchandising app designed to improve the shopping experience, particularly for stores with complex product catalogs and numerous variants. While both apps aim to improve sales, they accomplish this through different mechanisms, one by reducing sizing friction and the other by enhancing product discovery and presentation.
At a Glance
MP Size Chart & Size Guide
750 reviews
Stamp ‑ Variants on Collection
36 reviews
Detailed Overview
MP Size Chart & Size Guide
Reduce returns & boost conversions with customizable size charts & smart size recommendations
Key Features
- 23+ ready templates – Create size charts in minutes, no coding needed
- Fully customizable design – Adjust colors, fonts, layouts, and media easily
- Size recommendation – Reduce returns with personalized fit suggestions
- Bulk import & auto unit conversion – Fast setup for global sizing
- Sizing page – Display all size charts in one auto-synced, dedicated page
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 | 4.9/5 | 4.9/5 |
Rating MP Size Chart & Size Guide4.9/5 Stamp ‑ Variants on Collection4.9/5 | ||
| Reviews | 750 | 36 |
Reviews MP Size Chart & Size Guide750 Stamp ‑ Variants on Collection36 | ||
| Primary Focus | Reducing apparel sizing issues & returns | Enhancing product variant presentation on collection pages |
Primary Focus MP Size Chart & Size GuideReducing apparel sizing issues & returns Stamp ‑ Variants on CollectionEnhancing product variant presentation on collection pages | ||
| Key Feature 1 | Customizable size charts & size recommendations | Showing variants as separate products |
Key Feature 1 MP Size Chart & Size GuideCustomizable size charts & size recommendations Stamp ‑ Variants on CollectionShowing variants as separate products | ||
| Key Feature 2 | Bulk import & auto unit conversion | Hiding unavailable variants |
Key Feature 2 MP Size Chart & Size GuideBulk import & auto unit conversion Stamp ‑ Variants on CollectionHiding unavailable variants | ||
| Target Merchant | Apparel & fashion retailers | Merchants with many product variants |
Target Merchant MP Size Chart & Size GuideApparel & fashion retailers Stamp ‑ Variants on CollectionMerchants with many product variants | ||
| Ease of Use (based on features) | Potentially easier with pre-built templates | Potentially more complex due to variant management |
Ease of Use (based on features) MP Size Chart & Size GuidePotentially easier with pre-built templates Stamp ‑ Variants on CollectionPotentially more complex due to variant management | ||
| Value Proposition | Increased sales & reduced returns through better sizing | Improved product discovery & conversion through better presentation |
Value Proposition MP Size Chart & Size GuideIncreased sales & reduced returns through better sizing Stamp ‑ Variants on CollectionImproved product discovery & conversion through better presentation | ||
Our Verdict
For merchants selling apparel, particularly those experiencing high return rates due to sizing issues, MP Size Chart & Size Guide is the clear winner. Its focus on providing accurate and easily accessible sizing information directly addresses a specific pain point in the apparel industry. The large number of reviews further reinforces its effectiveness and reliability.
However, for merchants with extensive product catalogs and numerous variants, Stamp ‑ Variants on Collection offers a compelling solution to enhance product discovery and improve the overall shopping experience. It is particularly well-suited for stores where visual presentation of variants is crucial. While it has fewer reviews, its specialized functionality makes it a valuable tool for a specific niche.
Common Questions
Which app is easier to set up and use?
MP Size Chart & Size Guide likely has a simpler initial setup, thanks to its 23+ ready-made templates. Stamp ‑ Variants on Collection may require more configuration to manage and display variants effectively.
Can both apps integrate with other product recommendation apps?
While not explicitly stated, it's plausible that both apps can function alongside other product recommendation apps. MP Size Chart's recommendation feature could complement broader product recommendations. Stamp's variant presentation could enhance the visibility of recommended products.
Which app is more likely to impact SEO?
Stamp ‑ Variants on Collection, by creating separate pages or entries for product variants on collection pages, may have a more direct impact on SEO. This could potentially improve search visibility for specific variants.
Does either app offer A/B testing features?
Neither app explicitly mentions A/B testing features in their descriptions. This would require further research or direct communication with the app developers.
Which app is better suited for a store selling both apparel and accessories?
In this scenario, the best choice depends on where the merchant's biggest pain point lies. If sizing for the apparel is the main issue, MP Size Chart & Size Guide would be the priority. If presenting the accessories (variants) clearly is more critical, Stamp ‑ Variants on Collection may be more helpful. They could potentially be used in conjunction if budget allows.
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