Hammerdown

Auctions for Shopify

Live auctions on your Shopify store.

Turn any product into a timed auction. Bids land in real time, last-second bids extend the clock, and the winner is invoiced automatically at the price they won.

Install from the Shopify App Store

Installing happens on Shopify, which will ask you to approve the app before anything is added to your store.

What your shoppers get

Real-time bidding
Every shopper watching a product sees each bid the moment it lands, with no refresh.
Automatic bidding
Buyers set a private maximum and the app bids on their behalf up to it.
Anti-snipe extensions
A bid in the closing seconds pushes the end time out, so an auction ends when the bidding does.
Checkout protection
A product under auction cannot be bought at its catalog price by anyone but the winner.
Reserves and Buy it now
Set a floor you will not sell below, or a price that ends the auction on the spot.
Invoiced on close
The winner gets a draft order and a checkout link at the price they won, without you doing the arithmetic.

Pricing

Real-time bidding, popcorn bidding, checkout enforcement, email notifications, and invoicing a winner are on every plan, including free. Paid plans raise the volume and add automation.

Free

Free

Run a first auction and see how it lands.

  • One live auction at a time
  • Real-time bidding
  • Popcorn and proxy bidding
  • Reserve price and buy it now
  • Checkout enforcement
  • Email notifications
  • Invoice the winner manually

Starter

$7/mo

For a store that auctions regularly.

  • Up to 20 live auctions at once
  • Everything in Free
  • Automatic invoicing
  • Bulk auction creation
  • Auction collection page
  • Bidder lists

Growth

Most popular

$19/mo

For a store where auctions are the business.

  • Unlimited live auctions
  • Everything in Starter
  • Invite-only auctions
  • Buyer's premium
  • Branded email templates

Pro

$34/mo

For running auctions from your own systems.

  • Unlimited live auctions
  • Everything in Growth
  • Bidding API
  • Outbound webhooks
  • CSV import

Billed through Shopify and charged to your existing store invoice. Change or cancel your plan at any time.

Ready to run your first auction?

Install Hammerdown and add the auction block to a product.

Install from the Shopify App Store