Integrations

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.

Marketplace app
Shopify
Launching this week

Two-way product and inventory sync between your Shopify store and INV. Pull your catalog in, push stock and price changes out.

  • ✓ Sync products, variants, and inventory both ways
  • ✓ Preview before every pull or push — nothing changes without your OK
  • ✓ Secure OAuth connection, HMAC-verified
  • ✓ Map Shopify locations and match by SKU
  • ✓ Runs on Mac, iPad, and iPhone
Add to Shopify
Free to install — included with INV. Listing goes live this week.
Marketplace app
Square
Launching this week

Two-way sync with Square POS — keep your register and INV aligned on items, stock, and pricing.

  • ✓ Sync items, inventory, and pricing both ways
  • ✓ Sales in Square draw down stock in INV automatically
  • ✓ Preview before you pull — review the changes first
  • ✓ Secure OAuth connection with PKCE
  • ✓ Runs on Mac, iPad, and iPhone
Get it on Square
Free to install — included with INV. Listing goes live this week.

Also built into INV

No marketplace install — these ship inside the app.

Google Sheets™
Two-way sync to a Google Sheet. Export inventory, work orders, and customers, make bulk edits in the sheet, and pull them back into INV.
Dymo™ Labels
Built-in Dymo label templates. Print barcodes, shelf tags, and repair labels straight from INV — no extra software to set up.

How sync works

1

Connect once

Install the app from your platform and authorize INV with a secure OAuth handshake. No passwords are ever stored.

2

Preview before you sync

See exactly what will change — new items, stock deltas, price updates — and approve it before anything moves.

3

Two-way, on your schedule

Sync runs both directions. Sell on Square or Shopify and stock draws down in INV; update INV and it flows back out.

Run your bench and your storefront from one place.

Square and Shopify sync is included on every INV subscription — Monthly and Annual. Start free, connect your store, and keep everything in step.

Start 14-day free trial See pricing