Guide · Lab information system
Cloud vs on-premise lab software: which is right for a diagnostic lab?
Every lab buying software eventually hits this question, usually after a demo call or a conversation with a vendor's salesperson: should the system run on a server sitting in the back office, or on someone else's servers, reached through a browser? Both models are real, both are sold in India today, and the honest answer depends on what a lab is actually optimising for. This guide compares them on the five things that matter in practice, not in a brochure.
Key takeaways
- Cloud lab software runs in a browser; on-premise runs on your own machine. That single difference is what drives every other row in the comparison below.
- On-premise shifts responsibility to your lab. Backups, updates, server hardware and who fixes it at 11pm all become your problem, not the vendor's.
- Cloud shifts responsibility to the vendor, and needs the internet. No server to maintain, but the software genuinely stops updating the screen if the connection drops.
- HealthFlow is cloud-based, by design, with no on-premise option. Each lab's data sits in its own isolated database, in an ISO 27001-certified data centre in Germany; that certification belongs to the data centre, not to HealthFlow.
- Neither model is universally "right." A single-machine lab with patchy internet has a real case for on-premise; a multi-branch lab wanting one login from anywhere doesn't.
What "cloud" and "on-premise" actually mean here
"On-premise" means the software and the database it writes to are installed on a physical machine inside the lab, whether that's a dedicated server in a back room or just the reception PC. Someone, usually a local IT vendor on an annual maintenance contract, is responsible for installing it, patching it, and backing it up on their own schedule. If that server's hard disk fails and there's no recent backup, the lab's history goes with it.
"Cloud" means the software runs on the vendor's own servers, somewhere else entirely, and the lab reaches it through a browser on whatever computer, tablet or phone is in front of the receptionist. Nothing is installed locally beyond a browser that almost every device already has. Responsibility for the servers, the database and keeping the software current sits with the vendor, not with the lab's own staff.
Cloud vs on-premise lab software, side by side
Strip away the sales pitch on either side and the comparison comes down to five things a lab owner actually experiences day to day.
| What matters | On-premise lab software | Cloud based lab software |
|---|---|---|
| Cost | Upfront server hardware, a software licence, and usually an annual maintenance contract for whoever keeps it running | A monthly subscription, no server to buy; the vendor's infrastructure cost is folded into the price |
| Backups | The lab's own responsibility, whether that's the local IT vendor or whoever remembers to run one | The vendor's infrastructure to run and maintain, not a task on the front desk's to-do list |
| Updates | A manual patch cycle, often needing a vendor visit or a scheduled downtime window to install | Pushed by the vendor to everyone at once; a lab never has to schedule a downtime window for a version upgrade |
| Access | Tied to the machine or local network it's installed on; reaching it from another branch or from home usually means setting up a VPN | Any browser, any device, from wherever there's an internet connection; the same login works at every branch |
| Data location | Physically inside the lab's own building, on hardware the lab owns and is responsible for securing | In the vendor's data centre; for HealthFlow that's an isolated database per lab, in Germany, in an ISO 27001-certified facility (the data centre's certification, not HealthFlow's own) |
The question isn't which model is better. It's which risk a lab would rather own.
When on-premise still genuinely makes sense
It would be dishonest to say cloud software is simply an upgrade and on-premise is obsolete. A single-location lab with one PC, patchy or expensive internet, and an IT vendor already on retainer for other software has a real, defensible reason to stay on-premise: the connection dependency that comes with cloud software genuinely doesn't suit every location in India today. On-premise also appeals to a lab that wants full physical control of where its data sits, down to the exact server rack, and is willing to take on the backup and patching discipline that comes with it.
Where on-premise starts to cost more than it saves is the moment a lab opens a second branch, wants a receptionist to check a report from home, or loses a server's disk without a tested backup. None of those are hypothetical; they're the three reasons labs most often ask to move to a cloud system in the first place.
Moving from an on-premise register or software to the cloud
Labs rarely switch models overnight. In practice, moving from an on-premise system (or paper) to a cloud lab information system follows roughly the same sequence regardless of which cloud vendor a lab ends up choosing.
- Existing data reviewed
- Catalogue & ranges set up
- History migrated
- Staff trained
- Go-live
For HealthFlow specifically, onboarding carries a lab's existing test catalogue, reference ranges, price list and doctor list in from its current files or registers, and full historical data migration is available separately from ₹9,999 depending on how much history is being moved. Go-live is typically a matter of days, not months, precisely because there's no server to provision.
Where a lab information system fits into this decision
Cloud vs on-premise is really a question about infrastructure: where the software lives and who's responsible for it. It's a separate question from which lab information system is actually right for a lab, which comes down to what the software itself does: test catalogue and reference ranges, report generation, billing, and how (or whether) reports reach a patient. Our LIS features checklist walks through what to actually look for once the cloud-vs-on-premise decision is settled, and our security page covers data residency, tenant isolation and encryption in full for anyone evaluating a cloud vendor specifically.
HealthFlow's Diagnostics plans start at ₹399/mo for a small single-location lab, scaling with test volume, with a 10-day free trial, a 30-day money-back guarantee, and month-to-month billing with no annual lock-in. Everything above about HealthFlow is real, shipped infrastructure, not a roadmap description.
See HealthFlow's Diagnostics plans and pricing →
Frequently asked questions
What is the real difference between cloud vs on-premise lab software?
On-premise lab software runs on a server or PC physically inside your lab; your own staff or an AMC vendor install it, patch it and back it up. Cloud based lab software runs on the vendor’s servers and reaches your front desk through a browser, so there’s nothing to install, and updates, uptime and backups are the vendor’s job, not yours. The trade-off is that cloud software needs an internet connection to work, while an on-premise install can technically run without one once it’s set up.
Is HealthFlow cloud-based or on-premise lab software?
HealthFlow is cloud-based only. Each lab gets its own isolated PostgreSQL database, hosted in ISO 27001-certified data centres in Germany, run by Hetzner. That certification belongs to the data centre, not to HealthFlow; HealthFlow’s own ISO 27001 certification is on our roadmap, which is why we say roadmap and not a badge we already hold. There is no on-premise or locally installed version of HealthFlow to buy or self-host.
Does cloud lab software still work if our internet connection is unreliable?
It needs a working connection to load and save data, since nothing runs locally on the machine itself. HealthFlow runs in the browser on whatever computer, tablet or phone your reception already has, and any internet connection is enough, including a phone hotspot as a backup during an outage. What it does not have is an offline mode: if the connection genuinely drops, the screen won’t update until it’s back.
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