Keep INV in sync with your storefront.
StringsTheory INV does real two-way sync with the tools you already run — Square, Shopify, Google Sheets, and Dymo. Connect once, preview before every sync, and push only what you mean to.
StringsTheory INV does real two-way sync with the tools you already run — Square, Shopify, Google Sheets, and Dymo. Connect once, preview before every sync, and push only what you mean to.
Two-way product and inventory sync between your Shopify store and INV. Pull your catalog in, push stock and price changes out.
Two-way sync with Square POS — keep your register and INV aligned on items, stock, and pricing.
No marketplace install — these ship inside the app.
Install the app from your platform and authorize INV with a secure OAuth handshake. No passwords are ever stored.
See exactly what will change — new items, stock deltas, price updates — and approve it before anything moves.
Sync runs both directions. Sell on Square or Shopify and stock draws down in INV; update INV and it flows back out.
Square and Shopify sync is included on every INV subscription — Monthly and Annual. Start free, connect your store, and keep everything in step.