Shopify app for Etsy sellers · early access
One stock count for Etsy and Shopify.
Sell your last one on Etsy and it's gone from Shopify seconds later. Tandem syncs quantities between your shops — and changes nothing else.
Quantities. Nothing else.
Sync apps earn their bad reviews by doing more than you asked. Tandem has one job, and these are the things it will never do.
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Change your pricesThere's no setting for it. Your Etsy and Shopify prices stay yours.
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Rewrite titles, SKUs or photosListings are read to match products, never edited.
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Sync anything you haven't approvedEvery product is linked from a preview you review first.
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Renew a sold-out Etsy listing behind your backRenewals cost a listing fee, so Tandem asks you instead.
See every match before anything syncs.
Tandem pairs your Shopify variants with Etsy listings by SKU and shows you exactly where the counts disagree. You pick which store is right. Nothing is written until you approve.
Every change on the record. Any of it undoable.
Each update Tandem makes is logged with what changed and why. Undo one with a click — sales that happened since are kept.
Problems get flagged, not buried.
Regular full checks catch counts drifting apart — including edits you make by hand on Etsy — and you get an email the moment something needs you.
Questions
Can I use it today?
We're onboarding a small group of sellers first, then launching on the Shopify App Store. Join the list and we'll reach out personally.
Do variations work?
Yes. Each size or colour with its own SKU syncs on its own, matching how you've set up stock on Etsy.
What if the last one sells on both at once?
It's rare, and no sync can fully prevent it. You can hold a unit or two back from Etsy, and Tandem tells you right away if it happens.
What does it cost?
Free during early access. After launch it'll be a simple flat monthly price — no per-order fees.