If you've been running a veterinary practice on Avimark, Cornerstone, or another server-based system for years, the idea of moving everything to "the cloud" probably triggers one of two reactions:
- "Finally. No more dealing with that server closet."
- "What happens when the internet goes down and I've got a dog on the table?"
Both reactions are reasonable. And the actual answer is more nuanced than either the cloud evangelists or the server diehards want to admit.
This article breaks down what cloud-based and server-based veterinary software actually means for your practice in 2026, what each approach costs (the full picture, not just the subscription fee), and where the real risks live.
First: What Do "Cloud" and "Server-Based" Actually Mean?
These terms get thrown around loosely, so let's be specific.
Server-based (on-premise): The software runs on a physical server in your clinic. Your data lives on that machine. When you open a patient record, your computer talks to that server over your local network. Examples: Avimark, Cornerstone, ImproMed.
Cloud-based: The software runs on servers maintained by the vendor, accessed through a web browser or app. Your data lives in the vendor's data center (usually AWS, Google Cloud, or Azure). When you open a patient record, your computer talks to those remote servers over the internet. Examples: ezyVet, Digitail, Provet Cloud, PawChart.
Hybrid: Some products straddle both. Pulse (Covetrus) markets itself as cloud-based but has some local components. Some cloud products offer limited offline caching.
The important thing to understand: this isn't a philosophical debate. It's a set of tradeoffs around cost, reliability, security, and flexibility. Neither approach is categorically better.
The Real Cost Comparison
Vendors on both sides cherry-pick the numbers that make their approach look cheaper. Here's the full picture.
What Server-Based Software Actually Costs
The subscription fee for server-based software is often lower than cloud alternatives. But the subscription fee is the smallest line item. (We break down all seven hidden cost categories in The True Cost of Veterinary Software.)
Visible costs:
- Software license: $200-$400/month (varies widely)
- Annual maintenance/support contracts: $1,500-$3,000/year
Hidden costs that add up fast:
- The server itself: $2,000-$5,000 upfront, replaced every 4-5 years
- IT support: Either an MSP at $350-$500/month, or the practice owner spending nights troubleshooting
- Backups: Someone needs to manage them. Tape drives, external drives, or cloud backup services ($50-$150/month)
- UPS (battery backup): $300-$800, replaced every 3-5 years
- Network infrastructure: Managed switches, firewall appliances, access points. $500-$2,000 depending on size
- Electricity: A server running 24/7 adds $30-$60/month to your power bill
- Physical space: That server closet could be a supply room
One veterinary practice owner opening a new cloud-based clinic described the IT decision this way:
"I spoke to a few MSPs but they each have their own stack of hardware they recommend (Cisco, Ruckus, Watchguard, etc.), which makes it hard for me to know what I truly need. All of them have basically stated that the hardware they recommend is guaranteed to work well, but is too advanced to manage on my own, so that means I have to pay $350-400/month to manage it." — Veterinary practice owner, r/sysadmin (2021)
That's $4,200-$4,800/year just for someone to babysit the network, on top of everything else.
Realistic total cost of ownership for server-based, per year:
- Software: $2,400-$4,800
- IT support: $4,200-$6,000
- Hardware amortized: $800-$1,500
- Backups, power, misc: $1,000-$2,000
- Total: $8,400-$14,300/year
What Cloud-Based Software Actually Costs
Cloud vendors love to quote a single monthly number. That number is real, but it's not the whole story either.
Visible costs:
- Subscription: $100-$800/month depending on vendor and tier (see our comparison)
- Per-provider fees (some vendors): $50-$200/month per veterinarian
Hidden costs:
- Internet upgrade: If your current connection is marginal, you'll need business-grade internet. $100-$300/month for a reliable connection
- Redundant internet (recommended): A cellular failover or second ISP. $50-$100/month
- Workstation upgrades: If your existing machines are ancient, cloud software that runs in a browser still needs a machine that can run a modern browser. But you don't need powerful hardware: any machine from the last 5 years works fine.
What you don't pay for:
- Server hardware (none needed)
- Server maintenance and replacement cycles
- Backup management (vendor handles this)
- Most IT support (no server to babysit)
- Software updates (automatic, included)
Realistic total cost of ownership for cloud-based, per year:
- Software (mid-range): $2,400-$6,000
- Internet upgrade: $1,200-$3,600
- Internet redundancy: $600-$1,200
- Total: $4,200-$10,800/year
The Bottom Line on Cost
For most small practices, cloud-based software costs less when you account for everything. The difference isn't always dramatic, but the cash flow pattern is different: cloud is a predictable monthly expense, while server-based has unpredictable spikes (server dies, hard drive fails, you get hit with ransomware and need emergency recovery).
The practices where server-based can still make financial sense: larger clinics with in-house IT staff who are already managing the infrastructure for other reasons.
The Internet Question (Let's Be Honest About This)
This is the #1 concern practice owners raise about cloud software, and it deserves a straight answer.
Yes, if your internet goes down, cloud-based software stops working.
That's not a myth. It's a fact. If you can't reach the vendor's servers, you can't pull up patient records, you can't process payments, you can't do anything that requires the software.
The question isn't whether this can happen. The question is: how likely is it, and what can you do about it?
How Often Does Internet Actually Go Down?
Business-grade internet from major providers (Comcast Business, Spectrum Business, AT&T) typically delivers 99.5-99.9% uptime. That sounds great until you do the math:
- 99.9% uptime = ~8.7 hours of downtime per year
- 99.5% uptime = ~43 hours of downtime per year
Most of that downtime happens in short bursts: a 10-minute blip here, an hour-long outage there. Full-day outages are rare but not unheard of, especially in areas prone to severe weather or with only one ISP option.
The Mitigation That Actually Works
Cellular failover. A 4G/5G cellular backup connection that kicks in automatically when your primary internet drops. Cost: $50-$100/month for the plan, plus a one-time hardware cost of $200-$500 for a failover router.
This doesn't make you invincible. If you're in a dead zone for cellular coverage, this won't help. But for the vast majority of practices, it reduces "internet down" from "we're closed" to "we're running a little slower for 20 minutes."
Several cloud-based veterinary practices have adopted this approach:
"His practice management software, like ours, is cloud-based so he doesn't utilize a server and doesn't have to worry about backups or disaster recovery." — Veterinary hospital owner discussing IT setup, r/sysadmin (2021)
What Server-Based Software Doesn't Protect You From
Here's the part the server advocates leave out: server-based software has its own downtime risks, and some of them are worse.
- Server hardware failure. Hard drives die. Power supplies fail. When your server goes down, you're not waiting for Comcast to fix a line. You're waiting for a replacement part or a new server, which could take days.
- Ransomware. This isn't hypothetical. In 2019, National Veterinary Associates (NVA) was hit with a ransomware attack that took down systems at approximately 400 veterinary clinics. Server-based systems that aren't properly secured are prime targets.
- Backup failure. If your backup system fails silently (and they do), a server crash means permanent data loss. Cloud vendors handle redundancy across multiple data centers. Your single server in a closet does not.
- Software updates. Server-based systems require manual updates, often with scheduled downtime. Staff postpones updates because they're disruptive. Eventually you're running software that's months or years out of date, with known security vulnerabilities.
The honest comparison isn't "cloud has downtime risk and server doesn't." It's "cloud has frequent but short disruptions that you can mitigate, while server has rare but catastrophic failures that are harder to recover from."
Security: What Veterinary Practices Actually Need to Know
Veterinary practices aren't covered by HIPAA (that's human healthcare). But you still hold sensitive data: client names, addresses, phone numbers, email addresses, payment information, and for some clients, detailed financial records. A data breach is a trust-destroying event whether or not a federal regulation covers you.
Cloud Security
What the vendor handles:
- Data encryption at rest and in transit (standard for any reputable cloud provider)
- Physical data center security (armed guards, biometrics, the works)
- Regular security audits and penetration testing
- Automated backups across geographically distributed data centers
- Software patches applied immediately
What you still need to handle:
- Strong passwords and two-factor authentication for all staff accounts
- Revoking access promptly when employees leave
- Training staff not to fall for phishing emails
- Keeping workstation browsers and operating systems updated
The risk: Your data is on someone else's servers. You're trusting the vendor's security practices. If the vendor gets breached, your client data could be exposed. This has happened in other industries. It hasn't been a major event in veterinary software yet, but the risk is real.
Server-Based Security
What you're responsible for (all of it):
- Firewall configuration and updates
- Operating system patches
- Antivirus and anti-malware
- Physical security of the server
- Backup encryption
- Network segmentation
- User access controls
- Disaster recovery planning
The risk: Most small veterinary practices are not IT security experts. The server sits in a closet, behind a consumer-grade firewall, with passwords that haven't been changed in years, running an operating system that's two versions behind. This is the reality for a significant number of practices, and it's far less secure than any reputable cloud provider.
The 2019 NVA ransomware attack hit server-based infrastructure. The attackers didn't need to breach AWS. They found vulnerabilities in on-premise systems that weren't properly maintained.
The Honest Assessment
For the average 1-5 vet practice without dedicated IT security staff, cloud-based software is almost certainly more secure than what you're running on your own server. Not because cloud is inherently safer, but because you're delegating security to a team that does it full-time instead of trying to manage it yourself between appointments.
The exception: if you have a competent MSP managing your server infrastructure with proper security protocols, your on-premise setup can be genuinely secure. But you're paying for that, and most small practices aren't.
Performance and Speed
This is where longtime Avimark users have a legitimate concern.
Server-based advantage: local network speed. When your software talks to a server 10 feet away over a gigabit ethernet connection, it's fast. Click, and the record appears. This is the experience Avimark users love, and it's hard to replicate over the internet.
Cloud-based reality: There's inherent latency when data travels to a server in Virginia or Oregon and back. On a good internet connection, this is 50-200 milliseconds per request. Most modern cloud PMS products feel responsive, but not instant. If you're used to Avimark's snap-response on a local network, cloud software will feel slightly slower for routine tasks.
Where cloud wins on speed: Complex operations like reporting, analytics, and multi-location data access. Cloud servers have far more processing power than your closet server, and they don't slow down when three people run reports simultaneously.
What's improving: Browser technology, caching, and CDNs (content delivery networks) have made cloud applications dramatically faster over the past few years. The gap between "local" and "cloud" speed has narrowed significantly and continues to shrink.
If you're the kind of practice that notices a 100-millisecond delay when opening a record, cloud will frustrate you initially. If you're the kind of practice that's tired of your server grinding to a halt during end-of-month reporting, cloud will feel like an upgrade.
The Hardware Simplification
This is the underrated benefit of cloud software that rarely makes the marketing brochure.
One practice in the r/Veterinary community asked whether an entire clinic could run on Chromebooks:
"I've been through a few clinics and noticed that most of them use Windows computers and paper charts for quite a bit of their management. I've wondered about the possibility of running a clinic on Chromebooks/tablets, especially since so many programs (ezyvet, instinct, etc.) are cloud-based and run off an internet browser." — u/Wonderful-Disk6763, r/Veterinary (March 2026)
The answer is: mostly yes. With cloud-based software, your workstations become thin clients. They need to run a web browser, and that's it. This means:
- Lower hardware costs. A $300 Chromebook or a refurbished laptop works fine. No need for $1,000+ workstations.
- Easier replacement. If a workstation dies, grab any computer, log in through the browser, and you're back in business. No reinstallation, no configuration, no lost data.
- Tablets in exam rooms. Cloud software works on iPads and Android tablets. Take notes at the exam table instead of walking back to a desktop.
- Remote access. Check tomorrow's schedule from home. Review lab results on your phone. This is impossible with server-based software unless you set up VPN access (which adds complexity and cost).
The counterpoint: some clinical hardware (digital radiography, certain lab equipment) still requires specific Windows software to interface with it. You'll likely need at least one or two "real" computers for those integrations. But the days of needing a full Windows workstation at every station are over for cloud practices.
Automatic Updates vs. Controlled Updates
Cloud: Updates happen automatically. You log in Monday morning and the interface has a new feature, or a bug you reported last week is fixed. You don't choose when updates happen. This is mostly a benefit (you always have the latest version) but occasionally a surprise (a workflow changed and nobody warned you).
Server-based: Updates require manual installation. You choose when to update, which means you can test changes before rolling them out to the whole practice. The downside: updates become a chore that gets postponed. Running outdated software is a security risk and means you miss improvements.
For small practices, automatic updates are almost always better. You don't have the staff to test and schedule manual updates, and the risks of running outdated software outweigh the inconvenience of occasional surprises.
Multi-Location and Remote Work
If you have or plan to have more than one location, cloud software wins decisively. One patient database, accessible from any location, with real-time data. No complicated server-to-server synchronization. No VPN tunnels between offices.
Even for single-location practices, the remote access benefit is real. Veterinarians increasingly want to:
- Finish SOAP notes from home after a long day
- Check the next day's schedule remotely
- Review lab results on their phone
- Get after-hours access during emergencies
Server-based software requires VPN setup for any remote access, which adds cost, complexity, and security risk. Cloud software works from any browser, anywhere, with the same login.
So Which Should You Choose?
Here's a decision framework based on your actual situation:
Cloud is probably right for you if:
- You're a 1-5 vet practice without dedicated IT staff
- You want predictable monthly costs with no hardware surprises
- You value remote access and tablet-based workflows
- You have reliable internet (or can get it) and are willing to add cellular failover
- You're opening a new practice and want to avoid the upfront server investment
- You plan to add locations in the future
Server-based might still work if:
- You have a trusted MSP managing your infrastructure at a reasonable cost
- Your internet is genuinely unreliable and cellular failover isn't an option
- You're in a rural area with limited connectivity options
- Your current server-based system works well and the cost of switching outweighs the benefits
- You need absolute sub-50ms response times for every click (rare, but some practitioners care deeply about this)
The middle ground:
If you're currently on server-based software and it's working, don't switch for the sake of switching. But if your server is aging, your vendor is sunsetting the product (Avimark, Cornerstone), or you're spending more on IT support than on the software itself, the economics strongly favor cloud.
Where PawChart Fits
PawChart is cloud-based. We chose this deliberately because the practices we're building for (1-5 vet independent clinics) typically don't have IT staff, don't want to manage servers, and benefit most from the simplicity of browser-based access.
A few things we built with cloud concerns in mind:
- Fast interface. We obsess over load times because we know you're comparing us to Avimark's local-network speed. Cloud software doesn't have to feel slow.
- Transparent about the internet requirement. We don't pretend internet dependency doesn't exist. We recommend cellular failover and will help you set it up.
- Security handled for you. Encryption at rest and in transit, automatic backups, SOC 2-aligned practices. You don't need to become a cybersecurity expert.
- Works on anything with a browser. Chromebooks, iPads, refurbished laptops, your phone. Your hardware costs drop dramatically.
- Published pricing. $99/month (Solo), $179/month (Practice), $249/month (Group). No per-provider fees. No annual contracts.
We're building the software. We don't think it's our job to also sell you a server.
Quick Reference: Cloud vs. Server at a Glance
| Factor | Cloud-Based | Server-Based |
|---|---|---|
| Upfront cost | Low ($0-$500) | High ($3,000-$8,000) |
| Monthly cost | Higher subscription, lower total | Lower subscription, higher total |
| Internet required? | Yes (critical) | No (for core functions) |
| IT support needed? | Minimal | Significant |
| Automatic backups? | Yes (vendor handles) | No (you manage) |
| Remote access? | Built in | Requires VPN setup |
| Hardware flexibility | Any device with a browser | Windows workstations typically required |
| Updates | Automatic | Manual |
| Multi-location | Native | Complex and expensive |
| Ransomware risk | Lower (vendor-managed security) | Higher (self-managed security) |
| Speed (local tasks) | Good, not instant | Excellent |
| Speed (heavy tasks) | Excellent | Limited by server specs |
| Downtime pattern | Frequent, short, mitigable | Rare, catastrophic, slow recovery |
PawChart is cloud-based practice management software for independent vet clinics. AI SOAP notes, client communication, and billing, starting at $99/month. No servers required. See our pricing →