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E-Commerce · head to head

Medusa vs Poshmark

Medusa logo

Medusa

E-Commerce

Open source Shopify alternative

From
$29/month
Rated
-
Full reviewWebsite
Poshmark logo

Poshmark

E-Commerce

Social resale marketplace with a flat fee on low-value sales and a percentage cut above that

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Poshmark has a free tier, so it costs nothing to try first.
  • Each has a real cost: Medusa the managed cloud meters four separate resources: edge requests, emails, compute hours and database storage; Poshmark the flat 2.95 dollar fee on sales under 15 dollars takes a large proportional bite out of cheap items, making Poshmark a poor fit for offloading low-value pieces compared with a flat percentage competitor.
  • They diverge on capability: Medusa covers Open source, Poshmark covers Social sharing feed.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Medusa and Poshmark actually diverge.

Attributes where Medusa and Poshmark differ
AttributeMedusaPoshmark
Starting price$29/monthFree
Pricing modelsubscriptionFree to list; tiered seller commission by sale price
Free tierNoYes
PlatformsWebiOS, Android, Web
Founded2020Unknown

Identical on both: user rating (Not yet rated), category (E-Commerce).

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 Medusa

  • Open source
  • Modular architecture
  • Multi-region support
  • Plugin system
  • Admin dashboard
  • Order management
  • Inventory tracking
  • Payment integrations

Only in Poshmark

  • Social sharing feed
  • Posh Shows live selling
  • Tiered seller commission
  • Prepaid shipping labels
  • Posh Protect buyer guarantee
  • Bundle and offer tools

What people use each for

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

Medusa

  • Building a custom ecommerce backend on an open source headless platformnot Poshmark
  • Running a self hosted or managed commerce API with a custom storefrontnot Poshmark

Poshmark

  • A seller with a wardrobe of mid-value branded clothing who wants social discovery features to drive salesnot Medusa
  • Someone willing to invest time sharing and engaging to keep listings visible in the feed algorithmnot Medusa
  • A buyer who enjoys live-hosted Posh Shows as a shopping format rather than static browsingnot Medusa
  • A seller who wants shipping cost handled through a fixed-rate prepaid label rather than arranging it themselvesnot Medusa

Where each one falls short

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

Medusa

  • The managed cloud meters four separate resources: edge requests, emails, compute hours and database storage
  • The Develop plan at $29 a month applies a hard limit of 1,000 emails, so it stops rather than bills
  • Compute hours are capped at 600 on Develop and 800 on Launch
  • Edge request overage is $0.3 per million and storage $0.5 per GB month above the plan allowance
  • Background workers and priority support require the Scale plan at $299 a month

Poshmark

  • The flat 2.95 dollar fee on sales under 15 dollars takes a large proportional bite out of cheap items, making Poshmark a poor fit for offloading low-value pieces compared with a flat percentage competitor.
  • The 20 percent commission on higher-value sales is above Mercari flat 10 percent rate, so a seller moving pricier items pays materially more per sale unless the social discovery features generate enough extra volume to compensate.
  • Visibility in the app depends heavily on active sharing and engagement, so a seller who lists items and does not regularly promote them tends to see far fewer sales than one who does, turning selling into ongoing work.
  • Naver ownership since 2023 means Poshmark now reports as part of a larger Korean internet conglomerate rather than as an independent company, which can affect roadmap priorities and regional focus.
  • Buyer protection through Posh Protect requires timely reporting and photo evidence, and disputes over item condition still rely on subjective judgement between buyer and seller.

Pricing, plan by plan

Medusa

$29/month
  • Develop$29/month
    • Base cloud hosting
    • Commerce features included
    • No GMV-tax
  • Launch$99/month
    • Enhanced features
    • No GMV-tax
  • Scale$299/month
    • Advanced features
    • No GMV-tax
  • Enterprise$null/custom
    • Custom configuration

Poshmark

Free
  • SellingFree
    • Flat 2.95 dollar fee on sales under 15 dollars
    • 20 percent commission on sales of 15 dollars or more
    • Shipping label cost typically passed to the buyer at a fixed rate

Which should you pick?

Choose Medusa if

  • You need open source.
  • You also want modular architecture.
Medusa review

Choose Poshmark if

  • You need social sharing feed.
  • You want to start without paying.
  • You work on iOS, Android, Web.
  • You also want posh shows live selling.
Poshmark review

Questions people ask

Is Medusa or Poshmark better?
Neither clearly leads. Medusa starts at $29/month and Poshmark at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Medusa or Poshmark?
Poshmark has a free tier; the other does not. Paid plans start at $29/month for Medusa and Free for Poshmark.
Does Medusa or Poshmark run on more platforms?
Medusa runs on Web. Poshmark runs on iOS, Android, Web.
Can I use Poshmark for free?
Yes. Poshmark has a free tier, so you can try it without paying. Medusa starts at $29/month.
What is Medusa best used for?
Medusa is most often used for building a custom ecommerce backend on an open source headless platform, running a self hosted or managed commerce api with a custom storefront. Of those, building a custom ecommerce backend on an open source headless platform and running a self hosted or managed commerce api with a custom storefront are not what Poshmark is typically brought in for.
What can Medusa do that Poshmark cannot?
Medusa covers Open source, Modular architecture, Multi-region support, Plugin system. Poshmark covers Social sharing feed, Posh Shows live selling, Tiered seller commission, Prepaid shipping labels.

Answered from the vendors’ own pages

Medusa: What does Medusa charge for additional team members?

Additional seats on the Medusa Cloud development platform cost $30 per seat per month. Unlimited users can access the Medusa Admin Dashboard at no additional cost for commerce operations.

Source
Poshmark: How much does Poshmark charge sellers?

A flat 2.95 dollar fee on sales under 15 dollars, and a 20 percent commission on sales of 15 dollars or more.

Medusa: Are there usage-based charges beyond the base Medusa plan price?

Yes. Beyond base plan costs, Medusa charges for edge request overages at $0.30 per 1M requests, email overages at $0.70 per 1,000 emails, data transfer at $0.125 per GB, and database storage at $0.50 per GB-month.

Source
Poshmark: Who owns Poshmark?

Naver, the South Korean internet and search company, acquired Poshmark in 2023.

Medusa: Can I cancel my Medusa subscription at any time?

Yes, users can cancel their Medusa subscription anytime. Plans are billed monthly in advance, with flex usage charges from the previous month added to the next invoice.

Source
Poshmark: Do I have to actively promote my listings?

Not strictly, but the app visibility algorithm favours accounts that regularly share and engage, so passive listing tends to sell more slowly.

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