What 'cloud POS' actually means
Cloud POS = your POS software runs on remote servers; your tablet connects via the internet. Legacy POS (sometimes called 'server-based' or 'on-premise') = your POS software runs on a local computer at your restaurant, with terminals talking to it over your local network.
Most modern restaurant POS systems are cloud-based by 2026 (Square, Toast, Vertex, Lightspeed). Legacy systems (Aloha, Micros, some older Clover deployments) are still common in chain operations and certain regional markets.
Difference 1: what happens when the internet goes down
Cloud POS: depends on the implementation. Best-in-class cloud POS apps have offline mode — orders queue locally and sync when the internet returns. Worst case: a basic cloud POS can't process orders at all without connectivity.
Legacy POS: keeps running entirely independent of internet. Orders save to local hardware. Card processing might be impacted (if your processor needs internet) but the order-taking and ticket-printing flow doesn't break.
This is the biggest legitimate argument for legacy. If your restaurant is in a rural area or a region with flaky internet, legacy is more forgiving. For most urban restaurants with reliable broadband and an LTE backup router, cloud POS with offline mode is fine.
Difference 2: cost structure
Cloud POS: monthly software subscription ($30-300+/month per location), low or no upfront cost, no internal IT required.
Legacy POS: large upfront hardware and software cost ($5,000-30,000), plus annual maintenance contracts (15-25% of license cost), plus occasional IT support fees when something breaks.
Over 5 years, legacy almost always costs more in total. The marketing pitch of cloud POS — 'lower TCO' — is real, but the upfront-vs-subscription difference is what most operators feel viscerally. Cloud feels cheap in year one, legacy feels cheap in year five.
Difference 3: integration depth
Cloud POS: APIs and webhooks for everything. Connect your online ordering, accounting, marketing platform, and inventory tools in a few clicks. The platform was designed to be integrated with.
Legacy POS: integration is hard. You're often dealing with file imports, FTP drops, or paid integration middleware (Omnivore, Restaurant365's integration layer). What takes 20 minutes on cloud takes a 3-month integration project on legacy.
For any operator who plans to use multiple software tools — and that's most operators in 2026 — cloud's integration story is a meaningful advantage. The exception is large chains who have already paid for legacy integration middleware and have it working.
Difference 4: data ownership and access
Cloud POS: your data lives on the vendor's servers. You access it via their dashboard and API. If you leave the vendor, you take your data via export.
Legacy POS: your data lives on your hardware. You theoretically have direct access. In practice, the data is usually in a proprietary database format only the vendor's software can read.
Both have lock-in. Cloud's lock-in is contractual (export quality varies). Legacy's lock-in is technical (your data is on a hard drive you can't easily read).
Difference 5: leaving the vendor
Cloud POS: cancel the subscription, export your data via CSV/JSON, deploy on a new vendor. Most operators can complete a cloud-to-cloud POS migration in 1-2 days.
Legacy POS: harder. Your data extraction requires the vendor's cooperation (or a third-party data extraction service costing $1,500-5,000). Your hardware is sunk cost unless the next vendor supports the same equipment. Migration timelines run 2-12 weeks.
The 'how hard is it to leave' question is more important than most buyers think during selection. Cloud POS wins this comfortably.
When legacy POS still wins
Three scenarios where legacy is a legitimate choice in 2026: unreliable internet, multi-decade operator with existing legacy investment and trained staff, or hospitality property management integration depth (some PMS systems integrate more tightly with legacy POS than with cloud).
For everyone else, cloud is the default. The cost structure, integration story, and migration flexibility all favor it. The pillar guide [Restaurant POS Guide](/blogs/restaurant-pos-guide) covers the selection process across both.