5 FOUNDING SPOTS · FREE BUILD UP TO 5 FEEDS · CASE STUDY REQUIRED APPLY →
Quiet Enginestock that doesn't lie. Book free discovery call →
Managed inventory sync · Shopify + eBay

Custom inventory sync. Built for and dropshippers.

I keep your quantities and prices accurate to the latest data from your suppliers, however weird their feeds are. And I'm the one who fixes it if the feed breaks or if your supplier changes their feed format.

Built for dropshippers. You don't buy inventory until the customer places the order. Your supplier ships direct. Your store stays accurate, so you never sell something they can't ship.

Book a free discovery call → See pricing

14-day money-back. Cancel anytime after 3 months. I'll tell you if you don't need me.

// supplier feed in. accurate Shopify out.
// source Supplier feed whatever format they ship
  • RSR
  • Lipsey's
  • Davidson's
  • TWH
  • Petra
  • Crazy Sales
// engine Quiet Engine your pricing & business rules
// destination Your store
  • Shopify
  • eBay
// I build with
Quiet Engine in motion 18 seconds
// supplier feed in · quiet engine · accurate store out
Why shops call me Three reasons

Three things off-the-shelf apps don't fix.

  1. Off-the-shelf apps hit a ceiling.

    Stock Sync, Syncee, and the rest cover the common cases. The moment your pricing logic doesn't fit their conditional multipliers, MAP enforcement, tiered markup, brand-specific rules, you're stuck. I write the rules in code. Anything you can describe in plain English, I can build.

  2. Off-the-shelf apps don't speak your supplier.

    Stock Sync, Syncee, and the rest all handle standard CSV feeds. But the moment your supplier sends a multi-file feed, a pipe-delimited file, an HTTP feed behind auth, or a schema that doesn't match their dropdown menu, you're stuck. I've yet to find a feed format I couldn't work with.

  3. When the feed breaks at 2am, nobody's at the help desk.

    Your distributor changes their column order. Your sync silently fails. Oversells go out the door. Stockouts show on every product page. You hear about it the next morning from an angry customer. The point of paying me is that I've already noticed and fixed it.

Distributors I've worked with Examples, not the limit

Any supplier with a structured feed works.

How it works Three steps

How an engagement runs.

  1. Discovery20–30 min

    I read your feeds and check fit — what's broken, what works, who fits. If an off-the-shelf tool would solve it, I'll tell you straight.

  2. Build2–3 weeks

    Custom sync written for your rules — margins, multi-source, MAP, all of it — built around how your suppliers actually send data.

  3. Maintainongoing

    I patch and watch it. When a feed breaks, I notice before you do and fix it — you go on vacation.

Compared honestly Where I sit

Next to the off-the-shelf options.

Capability Quiet Engine Stock Sync Syncee DIY
Standard CSV feed Standard Yes Yes Yes
Pipe-delimited / multi-file Built per feed — Partial You build it
Tier-based pricing, MAP enforcement, brand-specific rules Yes — — You build it
Multi-source SKU reconciliation Primary / secondary / fallback — Priority lists Doable, painful
MAP price enforcement Pre-publish guardrail — — Doable
Same-day human response Mon to Fri · 24h SLA Email queue Email queue Whoever's on call
Order to distributor automation Scoped add-on — — Doable
Regulated-category handling (FFL, HAZMAT, age-gated, lot tracking) Built in — — Doable
Monthly retainer $299/mo $10+ $99 to $199 Sweat

Want to know if I can help your shop?

I don't take everyone. The 20-minute call tells both of us if it's worth doing.

Book a free discovery call → Apply for a founding spot →

Builds start at $500. Management from $299/mo. Money back if it doesn't sync. I'll tell you if a $10/mo app is the right answer instead.