About StackKnack
We built StackKnack because inventory mistakes quietly kill resale businesses.
Most sneaker and luxury resale operations don’t lose money because demand disappears. They lose money because inventory reality drifts away from inventory systems.
The quiet revenue killers
These problems don’t show up as one big failure. They show up as dozens of small, compounding losses that slow the business down and erode trust.
StackKnack was built to close that gap.
Software alone doesn’t fix operational truth
Most inventory tools stop at visibility:
“Here’s what the system says you have.”
Real resale operations break somewhere else.
They break in edge cases:
When teams don’t fully trust inventory, everything slows down.
StackKnack exists to align what systems say with what is actually sellable, so teams can act with confidence instead of hesitation.
We build for operators, not hobby sellers
StackKnack is designed for
- High-volume sneaker and luxury resale businesses
- Multi-channel operations selling across Shopify, marketplaces, and in-store
- Teams where inventory accuracy directly impacts revenue and customer trust
We intentionally do not build for
- Single-channel ecommerce
- Dropshipping or print-on-demand
- Low-volume experimentation
This focus allows us to go deep on the operational realities that matter at scale.
Our approach is simple and deliberate
Get inventory right before optimizing workflows.
What’s sellable matters more than what the dashboard shows.
We stay accountable for accuracy, not just access.
We onboard carefully, align workflows to how teams actually operate, and stay accountable as volume and complexity grow.
That’s why StackKnack is trusted in production environments where mistakes are expensive and confidence matters.
Built by people who stay close to operations
StackKnack is built by engineers and operators who work closely with resale businesses and understand how inventory problems show up in real workflows — not just dashboards.
We stay close to the work, listen to operators, and build with operational truth as the constraint.
If inventory accuracy is already costing you money, we should talk
StackKnack isn’t for everyone — and that’s intentional.
But for resale businesses where speed, trust, and accuracy matter, we exist to make inventory a strength instead of a liability.