How These Two Are Positioned
InterServer was founded in 1999 — over two decades in the US hosting market, with a well-established user base in the budget VPS space. Its most distinctive feature is the Price Lock Guarantee: the price you sign up at is the price you keep paying.
VPS Mart operates under Database Mart LLC, a parent company that's been running server infrastructure since 2005. VPS Mart launched as a standalone brand in 2014, with data centers in Kansas City and Dallas. Its two selling points are Windows VPS with licensing included and high-spec Linux VPS at budget pricing, backed by a 24-hour free trial.
Both providers are US-only, and both target small-to-medium projects serving primarily North American audiences.
Spec Comparison: What You Get at the Same Price
This is where the difference between the two is most immediately visible.
VPS Mart's Linux VPS starts at $2.99/month with 2 vCores, 4GB RAM, and 60GB SSD. Around the $4.99/month tier, you get 3 vCores, 6GB RAM, and 100GB SSD. All plans include unlimited bandwidth, a US static IP, no setup fee, and Windows licensing at no extra charge.
InterServer's VPS uses the Slice system: 1 Slice = $6/month, covering 1 vCPU, 2GB RAM, 30GB SSD, and 1TB bandwidth. Two Slices at $12/month doubles everything, and you can buy any number of Slices as needed.
Comparing the ~$6/month range: VPS Mart delivers 4GB RAM on its Linux configuration; InterServer's 1 Slice gives 2GB RAM. That paper spec gap is large — but actual single-core performance, disk I/O, and real network quality require running standardized benchmarks on both at the same price point before drawing reliable conclusions.
Windows VPS: VPS Mart's Strongest Ground
VPS Mart's Windows VPS plans bundle a genuine Windows Server license — promotional pricing at $5.99/month, standard at $8.99/month, running on Hyper-V with full Administrator access.
The value of "license included" becomes clear once you run the comparison. Most Windows VPS providers charge separately for Windows Server licensing — typically $16 to $19+/month on top of the VPS itself. VPS Mart bundles it in, which meaningfully lowers the entry cost for users who need RDP remote desktop, .NET application deployment, or Windows trading software.
InterServer also offers Windows VPS, but Windows licensing is billed separately, making total cost noticeably higher. If Windows Server is your explicit requirement, VPS Mart has a direct price advantage in this specific scenario.
Linux VPS: Who InterServer's Slice System Actually Fits
On the Linux side, the gap between the two is less pronounced — it's more about different pricing logic leading to different use cases.
InterServer's Slice system is more flexible for users who want precise resource control. Buy exactly what you need, no more. If your project needs 2 vCPU and 4GB RAM, two Slices at $12/month gets you there without hunting for a plan that happens to match your spec. That flexibility is particularly useful for managing multiple projects with different resource profiles.
Worth noting: InterServer Linux VPS below 4 Slices is fully unmanaged — you're on your own when something breaks, no hand-holding from support. VPS Mart officially offers 24/7 managed support, but there isn't enough independent third-party data to verify actual support quality with confidence.
Network Coverage: Both Are US-Only
VPS Mart has Kansas City and Dallas. InterServer has New Jersey and Los Angeles. All four nodes are in the US — solid latency for US and Canadian users, acceptable for Europe, noticeably higher for Asia.
If your target audience is primarily in the US, both work fine. If you need Asian nodes or multi-region deployment, platforms like Vultr or DigitalOcean with global presence are the better answer — neither of these two providers solves that problem.
Stability and Long-Term Operating Risk
This is where the two are closest — and also where spec sheets tell you the least.
InterServer has 20+ years of operating history, and the Price Lock Guarantee has been consistently honored over many years. For projects intended to run long-term, that track record is genuine reference material.
VPS Mart is a newer brand, but the parent company Database Mart has been operating for over two decades as well, which provides enough independent history to evaluate its stability claims. That said, if you're running this for production-critical business workloads, I'd still recommend using the 24-hour free trial to validate basic functionality before committing.
WordPress and WooCommerce Deployment
Both can run WordPress and WooCommerce — that's not a differentiator here. What actually determines WordPress performance is: single-core CPU throughput, MariaDB query speed, whether Redis Object Cache is configured, PHP-FPM tuning, and CDN coverage. These variables need to be set up manually on any VPS regardless of provider — neither platform auto-optimizes this for you.
If you're not comfortable with Linux administration, both providers carry roughly the same learning curve, and a managed platform like Cloudways or Hostinger would be a more appropriate starting point. If you already have Linux basics down, neither poses any technical obstacle for WordPress deployment.
How to Choose
Choose VPS Mart if: your core need is Windows VPS, you need RDP remote desktop or a Windows Server environment, your budget is tight and you don't want to pay separately for licensing, and you're willing to use the 24-hour trial to validate before committing.
Choose InterServer if: you're primarily running Linux, long-term price stability matters more to you, and the Slice system's flexibility for precisely dialing in resource allocation fits how you work.