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Fashion · head to head

Shopify Plus vs Sizebay

Shopify Plus logo

Shopify Plus

Fashion

Enterprise e-commerce for fashion brands

From
$2000/month
Rated
-
Full reviewWebsite
Sizebay logo

Sizebay

Fashion

AI-powered sizing and fit recommendation platform

From
€250/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Shopify Plus starting at $2,500/month with 1-year minimum commitment, no upper limit specified; Sizebay no pricing information published on vendor website
  • They diverge on capability: Shopify Plus covers Unlimited bandwidth, Sizebay covers AI sizing.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Shopify Plus and Sizebay actually diverge.

Attributes where Shopify Plus and Sizebay differ
AttributeShopify PlusSizebay
Starting price$2000/month€250/month
PlatformsWeb, Mobile, Pos, ApiWeb
Founded20062017

Identical on both: pricing model (subscription), free tier (No), user rating (Not yet rated), category (Fashion).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Shopify Plus

  • Unlimited bandwidth
  • Shopify Flow automation
  • Multi-store management
  • Wholesale B2B portal
  • Advanced reporting
  • Headless commerce
  • International selling
  • POS integration

Only in Sizebay

  • AI sizing
  • Fit recommendations
  • Return analytics
  • Customer insights
  • Shopify
  • Magento
  • Encryption
  • Authentication

What people use each for

The jobs each tool is most often brought in to do.

Shopify Plus

  • D2C e-commercenot Sizebay
  • Wholesale B2Bnot Sizebay
  • Omnichannel retailnot Sizebay
  • International expansionnot Sizebay
  • Flash salesnot Sizebay

Sizebay

  • Sizingnot Shopify Plus
  • Return reductionnot Shopify Plus

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Shopify Plus

  • Starting at $2,500/month with 1-year minimum commitment, no upper limit specified
  • Additional stores cost $300/month each, or require negotiating revenue share for more complex operations

Sizebay

  • No pricing information published on vendor website
  • Requires scheduling a demo to obtain pricing details
  • No public pricing tiers or subscription information disclosed

Pricing, plan by plan

Shopify Plus

$2000/month
  • Plus$2000/month
    • Unlimited staff accounts
    • Shopify Flow automation
    • Wholesale channel
  • Plus Enterprise$undefined/month
    • Everything in Plus
    • Custom checkout
    • Dedicated infrastructure

Sizebay

€250/month
  • Startup$250/month
    • AI sizing
    • Basic analytics
  • Professional$500/month
    • All features
    • Custom integration

Which should you pick?

Choose Shopify Plus if

  • You need unlimited bandwidth.
  • You work on Web, Mobile, Pos, Api.
  • You also want shopify flow automation.
Shopify Plus review

Choose Sizebay if

  • You need ai sizing.
  • You also want fit recommendations.
Sizebay review

Questions people ask

Is Shopify Plus or Sizebay better?
Neither clearly leads. Shopify Plus starts at $2000/month and Sizebay at €250/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Shopify Plus or Sizebay?
Shopify Plus starts at $2000/month and Sizebay at €250/month.
Does Shopify Plus or Sizebay run on more platforms?
Shopify Plus runs on Web, Mobile, Pos, Api. Sizebay runs on Web.
What is Shopify Plus best used for?
Shopify Plus is most often used for d2c e-commerce, wholesale b2b, omnichannel retail, international expansion. Of those, d2c e-commerce and wholesale b2b are not what Sizebay is typically brought in for.
What can Shopify Plus do that Sizebay cannot?
Shopify Plus covers Unlimited bandwidth, Shopify Flow automation, Multi-store management, Wholesale B2B portal. Sizebay covers AI sizing, Fit recommendations, Return analytics, Customer insights.

Answered from the vendors’ own pages

Shopify Plus: How much does Shopify Plus cost?

Shopify Plus starts at $2,500 USD per month on a 1-year term or $2,300 USD per month on a 3-year term.

Source
Sizebay: How much does Sizebay cost?

Sizebay does not publish pricing information on its website. To obtain pricing, customers must schedule a demo or contact regional offices in North America, Europe, Latin America, or other regions via email to discuss pricing and implementation details.

Source
Shopify Plus: How much do additional stores cost on Shopify Plus?

Additional stores cost $300 USD per month per store, or customers can choose a variable revenue share model for more complex business operations.

Source
Sizebay: What is Sizebay's pricing model?

Sizebay operates with a custom pricing model determined through direct vendor consultation. The company provides solutions tailored to specific business needs, with pricing discussed during demo scheduling or regional office contact.

Source
Shopify Plus: What features are included in Shopify Plus?

Shopify Plus includes B2B tools, headless commerce APIs, POS system, checkout customization, analytics, automation tools, and unlimited online stores (main plus 9 expansion stores included).

Source
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