OddCountOddCount

Early access for Shopify stores that also sell on eBay

Know your eBay sync broke before a customer does.

OddCount checks your Shopify store against your eBay listings: stock, prices and orders. When they stop matching, it emails you in plain English. It works next to the connector you already use.

Free to join. We're building it now. Amazon comes after eBay.

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Example: stock for 4 SKUs in your store and on eBay
SKUYour storeeBayStatus
MUG-STN-11Matches1414Matches
CAP-OLV-OSMatches66Matches
TEE-BLK-MDoesn't match29Doesn't match
TEE-WHT-LMatches1111Matches
Example

Sync apps fail quietly.

Your connector moves the data. When it stops, it rarely tells you.

  • A listing stops updating

    You sell the last unit in your store. eBay still shows 9 in stock.

  • An order never arrives

    Someone buys on eBay. The order doesn't show up in Shopify, so it doesn't ship.

  • A price doesn't carry over

    You change a price in Shopify. eBay keeps the old one for days.

Most sellers find out from an oversell, a cancelled order or a hit to their seller metrics.OddCount is meant to tell you first.

How it works

stock, prices, ordersstopped 6 hours agoYour Shopify storeTEE-BLK-M2in stockYour connectoreBayTEE-BLK-M9in stockAmazonplannedread-onlyread-onlyOddCountcompares both sidesEmail to youwhen they don't matchstopped 6 hours agoYour Shopify storeTEE-BLK-M2in stockYour connectorread-onlyread-onlyOddCountcompares both sideseBayTEE-BLK-M9in stockAmazonplanned
Example. Your connector keeps moving the data. OddCount reads your store and eBay directly, so it doesn't depend on what the connector reports.
  1. Connect your store and eBay

    • Official sign-in on both sides.
    • Read-only: OddCount doesn't change your listings.
    • The first full check runs as soon as you connect.
  2. OddCount compares both sides

    It checks automatically, on a regular schedule:

    • Quantity and price for each SKU
    • eBay orders missing in Shopify
    • Listings that stopped updating
  3. You get a plain-English alert

    • By email: what's different, since when, and where to look.
    • Plus a daily report, even on days when everything matches.

    TEE-BLK-M doesn't match.

    Your store
    2 in stock
    eBay
    9

    eBay hasn't updated in 6 hours.

    Example alert

What it is and isn't

It is

  • A second pair of eyes on your sync
  • Read-only at launch
  • Works alongside Marketplace Connect, CedCommerce, LitCommerce, Sellbrite and others. It reads Shopify and eBay directly.

It isn't

  • Not another connector
  • Doesn't create or edit listings (an optional automatic fix is planned: off unless you turn it on)
  • Doesn't import orders

Pricing

Founding plan

$19/month

Locked in for your store, even if our prices change.

Join early access, then reserve your spot with a refundable $19 pre-order. At launch you subscribe through Shopify: 14 days free, then $19/month. We refund the pre-order the day you subscribe.

Get early access

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  • 14-day free trial when we launch
  • Up to 25,000 SKUs
  • Full refund within 30 days after launch if it's not right for you
  • eBay at launch. Amazon is planned: founding members get it at the same price.
  • Regular automatic checks and plain-English email alerts
  • No commission on your orders, no add-on fees
  • Cancel in one click
  • Aiming to launch in early 2027

Smaller catalog? A lower-priced plan will be available at launch. Join the waitlist.

FAQ

Can I use OddCount today?

Not yet. We're building it now and aiming to launch in early 2027. Join early access and we'll email you when it's ready.

Will it change my listings or orders?

Not at launch. OddCount only reads data, and fixing a mismatch stays in your hands (or your connector's). We're planning an optional automatic fix for later. If we build it, it will stay off unless you turn it on.

Is there a free trial?

Yes, once we launch on the Shopify App Store: 14 days free, then billed through Shopify. Founding members get it too. OddCount runs a full check as soon as you connect and sends a daily report, even when everything matches. Three days before your trial ends, we email you a summary of what it found, so you can decide.

What counts as a SKU?

Each product variant you list on eBay. For example, every size and color of a T-shirt counts separately.

Do I have to switch connectors?

No. OddCount sits next to whatever you use now.

Do you need my passwords?

No. You'll connect through Shopify's and eBay's official sign-in screens and can disconnect any time.

What about Amazon?

Amazon is planned after eBay. Founding members will get it at the same $19/month when it's ready.

How does the Founding plan work?

You reserve it with a refundable $19 pre-order. When OddCount launches on the Shopify App Store, you subscribe there to the Founding plan: a 14-day free trial, then $19/month, locked in for your store. We refund your pre-order the day you subscribe. If you switch plans later, you can always come back to Founding at $19. Until launch there's nothing to try, so your pre-order is covered by a guarantee: if OddCount isn't right for you within 30 days after launch, we refund everything you've paid us. Want out before launch? Email us and we'll refund it. If we don't launch, everyone gets a refund.

My store is small. Is $19 too much?

Maybe. A lower-priced plan for smaller catalogs will be available at launch. Join the waitlist and we'll email you.

Who's behind OddCount?

Misha, an independent developer in Kraków, Poland, who has spent years building e-commerce and ERP sync systems. Support is by email: [email protected].

Get a heads-up before your next oversell.

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