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E-Commerce · head to head

FastSpring vs Poshmark

FastSpring logo

FastSpring

E-Commerce

Merchant-of-record commerce platform for global payments, subscriptions, and tax compliance

From
On request
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: FastSpring pricing is not published and requires contacting sales for a quote, making cost comparison difficult upfront.; 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: FastSpring covers Global online payments, Poshmark covers Social sharing feed.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which FastSpring and Poshmark actually diverge.

Attributes where FastSpring and Poshmark differ
AttributeFastSpringPoshmark
Starting priceOn requestFree
Pricing modeltransactionFree to list; tiered seller commission by sale price
Free tierNoYes
Platformsweb, apiiOS, Android, Web
Founded2006Unknown

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 FastSpring

  • Global online payments
  • Subscription billing
  • Branded checkout
  • Tax compliance
  • Fraud prevention
  • Digital invoicing and quotes

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.

FastSpring

  • Selling software or SaaS internationally without a local tax entitynot Poshmark
  • B2B invoicing and custom quotes for enterprise SaaS dealsnot Poshmark
  • Recurring subscription billing for digital productsnot Poshmark
  • Reducing fraud and chargebacks on digital purchasesnot Poshmark

Poshmark

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

Where each one falls short

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

FastSpring

  • Pricing is not published and requires contacting sales for a quote, making cost comparison difficult upfront.
  • As a merchant-of-record, FastSpring takes on more control of the checkout and payment relationship than a pure payment gateway like Stripe.
  • Revenue share pricing can become more expensive than flat per-transaction gateway fees at very high volumes.
  • Primarily targeted at software/digital goods sellers, so it is less suited to physical product e-commerce.

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

FastSpring

On request
  • Custom$undefined/mo
    • All-in-one transaction-based pricing based on sales volume
    • No subscription fees or per-feature charges
    • Discounted rates for ACH and wire transfers

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 FastSpring if

  • You need global online payments.
  • You work on web, api.
  • You also want subscription billing.
FastSpring 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 FastSpring or Poshmark better?
Neither clearly leads. FastSpring starts at On request and Poshmark at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, FastSpring or Poshmark?
Poshmark has a free tier; the other does not. Paid plans start at On request for FastSpring and Free for Poshmark.
Does FastSpring or Poshmark run on more platforms?
FastSpring runs on web, api. 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. FastSpring starts at On request.
What is FastSpring best used for?
FastSpring is most often used for selling software or saas internationally without a local tax entity, b2b invoicing and custom quotes for enterprise saas deals, recurring subscription billing for digital products, reducing fraud and chargebacks on digital purchases. Of those, selling software or saas internationally without a local tax entity and b2b invoicing and custom quotes for enterprise saas deals are not what Poshmark is typically brought in for.
What can FastSpring do that Poshmark cannot?
FastSpring covers Global online payments, Subscription billing, Branded checkout, Tax compliance. Poshmark covers Social sharing feed, Posh Shows live selling, Tiered seller commission, Prepaid shipping labels.

Answered from the vendors’ own pages

FastSpring: What does FastSpring cost?

FastSpring uses flat-rate, all-in-one pricing based on transaction volume, with fees withheld from payouts. There is no minimum volume or subscription fee, and pricing is typically quoted based on expected sales volume after contacting their sales team.

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.

FastSpring: Is there a free plan?

FastSpring does not offer a free plan; instead pricing is transaction-based with no upfront subscription cost, and merchants only pay a commission on completed sales.

Source
Poshmark: Who owns Poshmark?

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

FastSpring: What does FastSpring integrate with or include compared to a payment gateway like Stripe?

FastSpring bundles international payments, subscription management, tax compliance, fraud prevention, reporting, and B2B invoicing into one price, whereas gateways like Stripe charge separately for many of these features.

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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