Apache CloudStack is a proven, open-governed IaaS platform that orchestrates VMs across many hypervisors. But it stops at metering: to turn usage into paid invoices you assemble StackBill, HostBill, or a WHMCS module on top. Hypervisor.io ships the orchestration, the metering, and a complete billing platform with payment gateways, tax, and a self-service storefront as one product.
Accurate as of May 2026. CloudStack ships frequent releases, so verify current versions before deciding.
| Capability | Hypervisor.io | CloudStack |
|---|---|---|
| Commercial layer | ||
| Native billing (meter to invoice to payment to tax) | Meters usage only via Quota plugin | |
| Built-in payment gateways | Only through third-party CMP or billing | |
| WHMCS / Blesta / HostBill modules | Third-party WHMCS / HostBill modules, not first-party | |
| Self-service customer storefront | Operator UI only; needs StackBill / Apiculus | |
| Real-time WebSocket UI | Modern Vue UI but polls, no push | |
| AI provisioning assistant | No native AI provisioning assistant | |
| Compute, networking and resilience | ||
| Live migration (all storage types) | KVM live migration; local storage in 4.18+ | |
| HA / automatic evacuation | Native host HA with VM restart | |
| VPC + security groups | Native VPC, security groups, network ACLs | |
| NAT gateway + load balancers | NAT plus LB on virtual router | |
| Cloud services | ||
| Managed Kubernetes + autoscaler | CKS with native cluster autoscaler | |
| S3-compatible object storage | Object storage framework with buckets, quotas | |
| Managed databases (DBaaS) | No native DBaaS; third-party or DIY | |
| GPU / vGPU passthrough | GPU passthrough and vGPU profiles | |
| Footprint and model | ||
| Single-node capable (low footprint) | Possible but heavy management-server footprint | |
| Multi-hypervisor support (beyond KVM) | KVM, VMware, XenServer, Hyper-V, bare metal | |
| Open governance / vendor-neutral | Apache 2.0, ASF open governance | |
CloudStack's Usage Server and Quota plugin track resource consumption in an abstract cloud currency and email monthly statements, but they never produce an invoice, take a payment, or apply tax. To actually charge customers you bolt on StackBill, HostBill, or an aging WHMCS module. Hypervisor.io ships twelve hourly metering services feeding a complete billing platform: proforma and tax invoices, credit notes, a tax engine, promotions, KYC, refunds, and a revenue ledger, all in one product.
There is no native way to charge a card in CloudStack; Stripe, PayPal, and Razorpay only appear once you layer on a third-party management platform. Hypervisor.io has built-in Stripe, Razorpay, and PayPal gateways for self-service top-ups, plus first-party WHMCS, Blesta, HostBill, and Paymenter modules if you already run an external biller. You can sell on day one instead of integrating for a quarter.
CloudStack ships an operator-facing admin UI; turning it into a customer-facing storefront means adding StackBill or Apiculus. Hypervisor.io includes a self-service storefront, a real-time WebSocket UI that pushes task and instance state live instead of polling, and an AI provisioning assistant with 70+ tools that lets customers deploy and manage resources conversationally. None of that exists natively in CloudStack.
CloudStack added an object storage framework with buckets and quotas in recent releases, but it has no native managed databases; DBaaS means a third-party build. Hypervisor.io ships managed databases with backup and point-in-time recovery, plus tenant S3 object storage with per-bucket keys, quotas, and bandwidth billing wired straight into the same invoicing engine.
If these matter most to you, CloudStack is the better choice and we will say so.
Multi-hypervisor breadth. CloudStack manages KVM, VMware, XenServer, Hyper-V, and OVM plus bare metal via MaaS, while Hypervisor.io is KVM/QEMU only. For a mixed estate, this is a real advantage.
Open governance. CloudStack is Apache 2.0 under the Apache Software Foundation, with an open community and no single-vendor dependency. Hypervisor.io is single-vendor commercial.
Scale and ecosystem maturity. More than a decade of large-scale, multi-zone production deployments and a deep partner ecosystem give CloudStack battle-tested advanced zones, domains, and projects for very large operators.
Bare-metal provisioning. With the native MaaS extension, CloudStack can provision and manage physical servers under the same orchestration model, something Hypervisor.io does not target.
CloudStack orchestrates beautifully and meters cleanly. Add the billing, payments, and storefront that turn usage into revenue, in one product, with Hypervisor.io.