Sync & Offline

PourCost is offline-tolerant. You can build cocktails, scan invoices, and edit ingredients on a basement walk-in with no signal. Changes queue locally and replay when the network returns.

What works offline

• Reading inventory, cocktails, and previous invoices.
• Editing existing data and creating new ingredients/cocktails.
• Capturing invoice photos (OCR processes when you reconnect).

What needs a connection

• First sign-in on a device.
• Catalog search (we don't bundle the full catalog locally).
• Recipe library adoption.

Conflict resolution

If you edit the same record on two devices while one is offline, PourCost applies last-write-wins on a per-field basis when the offline device reconnects. The change you made most recently sticks. We're moving to per-field merging for ingredient and recipe data; for now, last-write-wins is the rule.