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Sandboxer vs Ubicloud

Ubicloud sells virtual machines on bare-metal providers (Hetzner, Leaseweb, AWS Bare Metal) metered per minute. It is general IaaS. Pick Ubicloud for low-cost conventional VMs you may self-set-up; pick Sandboxer for ready-made agent sandboxes.

Checked against Ubicloud's public docs on October 24, 2026. Sources are linked in the table and listed below.

At a glance

Sandboxer and Ubicloud compared
CapabilitySandboxerUbicloud
IsolationmicroVM
Cloud Hypervisor, its own kernel
Full Linux with root
Ubuntu 24.04, sudo, systemd
Docker inside
Preinstalled
Nested virtualization (/dev/kvm)
Pause and resume with memory
Running processes come back
Fork a sandbox
Copy-on-write disk copy that boots fresh
HTTPS URL per port
Private with a token, or public
Longest sessionNo limit on paid plans
Auto-stop is up to 30 days or off
BillingPer second, flat rate per size
Stopped sandboxes are free
per minute, pro-rated
standard-4 is $0.00208/min.
GPUs
Self-host or open sourcepartial
Pricing page says you can set it up yourself on Hetzner, Leaseweb or AWS Bare Metal; open-source status not stated on that page.
RegionsUS East (Virginia) and EU Central (Finland)Hetzner Germany and Leaseweb US listed

= not documented publicly.

Price for one 4 vCPU, 8 GB machine

Sandboxer
$0.036/hour
Flat per-second rate for the default size
Ubicloud
$0.12/hour
standard-4 (4 vCPU, 16 GB, not 8 GB): $0.00208/min x 60 = $0.1248/h, Germany region

List prices from each provider's pricing page, before free credits, plans and storage. This compares price only.

Where Ubicloud is strong

  • Per-minute billing with pro-rated charges.
  • Runs on bare-metal providers, with a self-setup option.
  • standard-4 (4 vCPU, 16 GB) at about $0.12/hour.
  • Prices comparable between Germany and US regions.

Where Sandboxer differs

  • Ubicloud is a conventional VM cloud; Sandboxer adds agents, forks and per-port URLs.
  • Pages read do not document pause, fork or nested KVM.
  • Ubicloud bills per minute; Sandboxer per second.
  • Memory differs: priced instance is 16 GB.

Pick Ubicloud if

  • You want low-cost general VMs.
  • You want the option to set the stack up yourself on Hetzner, Leaseweb or AWS Bare Metal.
  • You need Germany or US bare-metal hosting.

Pick Sandboxer if

  • You want a ready-to-use Ubuntu 24.04 VM with Docker, nested KVM and coding agents preinstalled, with no cloud account or networking to set up.
  • You want stop/resume that brings running processes back, instant forks of a disk snapshot, and stopped sandboxes that cost nothing.
  • You want any port exposed as an HTTPS URL and a prompt API, MCP server and SDKs for agents out of the box.

Sources

Products change. If something here is out of date, email hello@sandboxer.com and we'll fix it. Ubicloud is a trademark of its owner. Sandboxer is an independent product and is not affiliated with Ubicloud.

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