OneCount

For multipacks and packs of N

Sell singles and multipacks from one stock count

Count stock in single units. A 3-pack takes 3, a 6-pack takes 6, and every pack shows how many you can actually fill.

Install OneCount from the Shopify App Store, then open it from Apps in your Shopify admin.

Everyday Crew Socks

Shared stock120
VariantUnits per saleAvailable
Single1120
3-pack340
6-pack620

Sell or restock to see every variant update.

Packs counted in units

Set units per sale once: 1, 3, 6, 12. 120 singles show as 40 three-packs and 20 six-packs.

On one product or several

Works when packs are variants of one product, or separate products like “Socks” and “Socks – 3 Pack”.

Found for you

Suggested pools spots options like Single / 3-pack / Pack of 6 and fills in the units per sale.

Never shows a pack you can't fill

Packs round down. With 5 singles left, the 3-pack shows 1 and the 6-pack shows 0.

Questions

Which variant do I restock?
Any of them. Add 30 singles or 10 three-packs in Shopify and the shared count goes up by 30 either way.
Can a pack be on a different product from the single?
Yes. A pool can hold variants from any products in your store.
What if two orders land at the same moment?
Every change is checked against Shopify's live stock before OneCount writes it, so two sales are never counted as one. Every pool is also re-checked each hour.

Plans

Free

$0

1 pool or bundle, multipack units, every location and the activity log.

Pro

$9.99 a month

Unlimited pools and bundles. 14-day free trial, billed through Shopify.