Your sync app says everything is fine.
Check its work.

SyncLookout connects to all your Shopify stores, compares them SKU by SKU, and alerts you the moment they drift apart. Before your customers notice.

Join the free pilot

If you run more than one Shopify store, this might sound familiar

"The app created around 300 duplicate products. I had to manually delete all of those duplicates and carefully check every single product."Real review left on a multi-store sync app, April 2026
"It literally deleted all the product pages from the store and even tampered with the inventory of the source store, which was not supposed to be affected."Real review left on a multi-store sync app, 2025
"The app allowed SOLD OUT ITEMS to be sold. All my items were going to -1 and -2."Real review left on a multi-store sync app
"Prices, stocks, and product statuses are absolutely never updated."Real review left on a multi-store sync app, February 2026

Every one of these merchants found out the hard way. Their sync app didn't warn them. Nothing did.

How SyncLookout works

1

Connect your stores

Install SyncLookout on each of your stores. It uses read-only API access. Setup takes minutes, not days.

2

It compares everything, all the time

SKUs, prices, inventory levels, product status, duplicates. SyncLookout keeps a running picture of what every store should look like.

3

You get one alert when it matters

The moment two stores disagree, you get an email or Slack message saying exactly what drifted, where, and when. No noise, no dashboard you have to remember to check.

What it catches

Inventory driftStock at 3 in one store, 0 in the other. You find out now, not after an oversell.
Duplicate productsYour sync app created 300 copies again? You know within the hour.
Price mismatchesSame SKU, different prices across stores. Flagged the moment it happens.
Silent sync failuresYour sync app stopped updating and nobody noticed. Now somebody notices.
Mass changes50 products deleted or zeroed out at once. Alert first, panic never.
Full audit trailWhat changed, where, and when. The evidence you need when a sync app destroys data.

SyncLookout cannot break your store

It connects with read-only access. It cannot create, edit, sync, or delete a single thing. The worst thing it can do is send you an alert you didn't want.

Your sync app writes to your store thousands of times a day. SyncLookout never writes at all. That's the whole point: you don't need another tool that can hurt you. You need one that watches the tools that can.

Keep your sync app. Trunk, Syncio, Stock Sync, Matrixify, your ERP, your custom integration. SyncLookout works alongside all of them and tells you when they're lying.

Free pilot. Then $29/month.

Try SyncLookout free during the pilot. After the pilot, the subscription is:

$29/month, flat

Join the free pilot

We're onboarding the first merchants personally for a free pilot, followed by $29/month. Leave your email and we'll be in touch to arrange setup.

Rather talk first? Email Simon