Full POS without WiFi. Cards swipe (queued for sync), cash drops, dual pricing intact, orders fire to local KDS. When the signal comes back, everything syncs in seconds.
Other POS need WiFi like oxygen. Redy survives the spots where you actually make money — festivals, events, packed venues, sketchy strip malls.
Queued cards settle, orders write to the cloud, KDS history catches up. Every transaction idempotent — zero duplicates, zero double-charges, zero "did that go through?" doubt at close.
Pull the WiFi at 7 PM and watch what's actually still working. Spoiler: not their card terminal, not their KDS routing, not their dual pricing.
Full POS without WiFi. Cash, cards, dual pricing, KDS routing — all running locally. Reconnect and 14 seconds later everything is synced.