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Sandboxer vs Codemagic

Codemagic is a CI/CD service for mobile apps (Flutter, React Native, native) running on Mac mini M2/M4 and Linux or Windows VMs. Sandboxer is not CI; sandboxes persist and can pause with memory saved. Pick Codemagic for iOS and Flutter builds and mobile release tooling; pick Sandboxer for agent and dev environments.

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

At a glance

Sandboxer and Codemagic compared
CapabilitySandboxerCodemagic
IsolationmicroVM
Cloud Hypervisor, its own kernel
VM
Machines are listed as VMs; isolation technology not detailed.
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
120 min per build on Free, Pay as you go and Fixed plans; 180 min on Enterprise
Enterprise limits are listed as a plan feature.
BillingPer second, flat rate per size
Stopped sandboxes are free
per minute, or annual fixed plan
M2 $0.095/min, M4 $0.114/min, Linux/Windows $0.045/min; 500 free macOS M2 minutes a month for individuals.
GPUs
Self-host or open source
RegionsUS East (Virginia) and EU Central (Finland)

= not documented publicly.

Where Codemagic is strong

  • Mac mini M2 and M4 machines with published per-minute prices and a free tier of 500 macOS minutes for individuals.
  • Fixed annual plans with unlimited minutes.
  • Codemagic Patch for over-the-air updates for React Native apps.
  • Linux machines suited to Android emulator tests.

Where Sandboxer differs

  • Codemagic's Linux and Windows machines are 8 vCPU / 32 GB at $0.045/min; Sandboxer offers 2 to 16 vCPU sizes billed per second.
  • Codemagic builds are time-limited; Sandboxer sandboxes can run with no time limit on a paid plan.
  • Codemagic has macOS; Sandboxer has no macOS VMs.

Pick Codemagic if

  • You build iOS or Flutter apps and need Apple Silicon machines.
  • You want fixed annual pricing with unlimited build minutes on managed Mac machines.

Pick Sandboxer if

  • Need a long-lived machine you can stop, resume and reach over SSH or an HTTPS URL, not a machine that exists for one job.
  • Want coding agents preinstalled and a prompt API, MCP server, SDKs and CLI for driving them.
  • Need Docker, nested KVM and full root in a VM that can stop with memory saved and resume with processes running.

Sources

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 If something here is out of date, email hello@sandboxer.com and we'll fix it.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

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