Questions people ask before installing

How fast does a change arrive in the other store?

A change in the store that owns the catalogue reaches the receiving store within seconds: stock, variants, fields and your own metafields travel on the webhook that Shopify sends when you save.

Images are the exception, and it is a deliberate one. They are copied when a product is first created in the receiving store. Adding images to a pair that already exists would duplicate them, because the platform renames files whose names are taken, so image differences are reported to you and left alone.

How often is the whole catalogue checked?

Every hour StoreTwin compares what changed since the previous check. Once a day it compares the whole catalogue of both stores, product by product and field by field, and names every difference by product and by field.

The daily check runs once every twenty-four hours; the exact hour moves, because the schedule restarts with every release. Both checks run on every plan, including the free one.

What is never copied?

Price is never copied. Two stores usually exist because they sell in different markets, and moving prices between currencies produces nonsense.

Orders and customers are never read at all - the app does not request access to them. Metafields owned by other apps in the receiving store are compared and reported, never overwritten: they belong to that app, and a sync app rewriting them starts a fight that runs every hour and that nobody wins.

Can it delete something in my store?

No. There is no delete operation anywhere in the sync. A product, variant, image or metafield that exists only in the receiving store is reported as a difference and left where it is. This is a property of the code, not a setting that could be flipped by mistake.

Which store pays?

One plan, on the store that receives the catalogue. Source stores are always free, and incoming connections are unlimited on every plan, including the free one. The plan is decided by one number: how many products are synced into that store.

What happens if I uninstall?

Copying stops immediately and nothing is removed from either store: everything already copied stays exactly as it is. Access tokens are erased on uninstall, and the rest of the data belonging to your store is deleted within the period Shopify requires.

Where is my data kept?

On our own server in Germany. What is stored is the mapping between the two catalogues, the journal of changes the app made, and the check reports. Access tokens are encrypted; product content itself is not kept after a check finishes.

Does the free plan really audit any catalogue?

Yes. The audit covers a catalogue of any size, including one that another sync app keeps: pair the stores, leave the connection in checking-only mode, and read what actually differs. Syncing on the free plan is limited to twenty-five products you pick.