WarpBuild vs Bitrise
WarpBuild is a drop-in runner for GitHub Actions: change one runs-on label and each job gets a fresh Linux, Windows or macOS VM that is destroyed afterwards. Bitrise is a full mobile CI/CD service for iOS and Android, and it also rents remote dev environments with a persistent disk where coding agents can work.
The companies and products
WarpBuild
WarpBuild sells hosted GitHub Actions runners: you change the runs-on label and your CI jobs run on its machines.
WarpBuild is a CI service, not an agent sandbox. Each GitHub Actions job runs in its own VM on Linux (x86-64 or arm64), Windows or macOS on Apple M4 Pro, and the VM and its disk are destroyed after the build. It also sells remote Docker builders, can run the same runners inside your own AWS, GCP or Azure account, and can host Claude Managed Agents sessions on its stock runners.
Bitrise
Bitrise is a mobile CI/CD platform that builds, tests and ships iOS and Android apps on its own Mac and Linux machines.
Bitrise is a different kind of product: a CI service. Each build runs in its own virtual machine from a Bitrise stack, and the machine is rolled back after the build. Since 2026 it also sells Remote Dev Environments, macOS and Linux sessions with a persistent disk where you can start Claude Code from a CLI or drive the machine through an MCP server. It is built for mobile teams.
- Funding
- $95M+ in total
Which use cases each one fits
For each use case, Battleships prices every sandbox provider on the same workload and sorts them from the cheapest monthly bill up. “94th cheapest of 377” means 93 of the other 376 providers run that workload, with every feature it needs, for less. “With limits” means the provider runs it but misses something, so it is listed after every full match. Open a use case for its whole ranking and what each provider misses.
| Use case and its workload | WarpBuild: price rank | Bitrise: price rank | bochka: price rank |
|---|---|---|---|
| Software factory 100 at once · 4 vCPU / 8 GB · 2,200 sessions of 8 h a month WarpBuild wipes the runner after every job, while Bitrise dev environments keep a disk but run only 1 to 5 VMs at once per tier; bochka keeps disks and runs many sandboxes. | 269th of 367, with limits $4,343 a month | 38th of 367, with limits $3,403 a month | 3rd cheapest of 367 $634 a month |
| Always-on AI employees 50 machines 24/7 · 2 vCPU / 4 GB An assistant that lives for weeks hits GitHub's 5 day job cap on WarpBuild and idle auto-terminate or maintenance stops on Bitrise; bochka has no session cap on paid plans. | 285th of 366, with limits $5,650 a month | 73rd of 366, with limits $1,970 a month | 5th cheapest of 366 $657 a month |
| Code interpreter bursts 100 at once · 1 vCPU / 2 GB · 200,000 sessions of 1 min a month | 287th of 345, with limits $600 a month | 289th of 345, with limits $658 a month | 186th of 345, with limits $2,000 a month |
| Sandboxes for your users 300 at once · 2 vCPU / 4 GB · 30,000 sessions of 23 min a month Sandboxes for your users need a URL into each one; WarpBuild blocks all inbound traffic and Bitrise has no public URL for a port, while bochka serves HTTPS on up to 50 ports. | 278th of 361, with limits $1,890 a month | 269th of 361, with limits $1,604 a month | Cheapest of 361 $209 a month |
| RL rollouts 1,000 at once · 2 vCPU / 4 GB · 1,000,000 sessions of 3 min a month | 281st of 360, with limits $9,000 a month | 271st of 360, with limits $6,818 a month | 34th of 360, with limits $2,000 a month |
| Agent evals 250 at once · 4 vCPU / 8 GB · 15,000 sessions of 20 min a month | 294th of 364, with limits $1,440 a month | 289th of 364, with limits $1,274 a month | 10th cheapest of 364 $200 a month |
| CI runners 40 at once · 8 vCPU / 16 GB · 6,000 sessions of 12 min a month WarpBuild is the full fit for GitHub Actions with one label changed, Bitrise is best for iOS and Android pipelines, and bochka suits Linux jobs an agent starts itself, with Docker and no build quota. | 94th cheapest of 377 $864 a month | 181st of 377, with limits $859 a month | 4th cheapest of 377 $86 a month |
| 24/7 dev boxes 1 machine 24/7 · 4 vCPU / 8 GB Bitrise dev sessions keep a persistent disk, which WarpBuild runners never do; bochka also keeps the disk and snapshots it every minute. | 182nd of 368, with limits $226 a month | 168th of 368, with limits $119 a month | 18th cheapest of 368 $26 a month |
| Computer-use agents 50 at once · 4 vCPU / 8 GB · 20,000 sessions of 15 min a month WarpBuild has no desktop, Bitrise offers a VNC desktop on macOS sessions controlled through its MCP server, and bochka streams a 60fps Linux desktop with Chromium. | 264th of 369, with limits $1,320 a month | 68th of 369, with limits $1,186 a month | 6th cheapest of 369 $200 a month |
| Browser-use agents 50 at once · 2 vCPU / 4 GB · 30,000 sessions of 10 min a month | 280th of 367, with limits $720 a month | 132nd of 367, with limits $746 a month | 7th cheapest of 367 $200 a month |
| Scraping & bots (startup scale) 50 at once · 1 vCPU / 2 GB · 100,000 sessions of 3 min a month | 306th of 346, with limits $878 a month | 131st of 346, with limits $862 a month | 6th cheapest of 346 $90 a month |
| Mass scraping & bots (undetectable) 1,000 at once · 1 vCPU / 2 GB · 3,000,000 sessions of 2 min a month | 275th of 338, with limits $17,550 a month | 256th of 338, with limits $13,088 a month | 71st of 338, with limits $1,800 a month |
| Parallel red teaming 200 at once · 2 vCPU / 4 GB · 5,000 sessions of 30 min a month | 264th of 360, with limits $435 a month | 73rd of 360, with limits $537 a month | 2nd cheapest of 360 $200 a month |
| GPU eval jobs 10 at once · 8 vCPU / 32 GB · 500 sessions of 30 min a month None of the three has GPUs. | Can't run it | Can't run it | Can't run it |
| macOS agents 5 at once · 4 vCPU / 8 GB · 1,000 sessions of 20 min a month Both rent Apple silicon Macs, WarpBuild as M4 Pro runners for CI jobs and Bitrise with iOS simulators in dev sessions; bochka has no macOS. | 29th of 36, with limits $1,520 a month | 21st of 36, with limits $400 a month | Can't run it |
Key features
| Feature | WarpBuild | Bitrise | bochka |
|---|---|---|---|
| Kind of product | GitHub Actions runners and remote Docker builders, billed per minute | Mobile CI/CD service, plus Remote Dev Environments for developers and agents | Sandbox for AI agents: a Linux VM you create, run, stop and fork by API |
| Isolation | Every job gets its own VM, destroyed after the build | Every build or session is its own VM; CI VMs are rolled back after each build | Every sandbox is a full VM with its own kernel, on dedicated AMD Ryzen 9 9950X hosts |
| Operating systems | Linux on x86-64 and arm64, Windows Server 2022 and 2025, macOS on Apple M4 Pro | macOS on Apple silicon (M2 Pro, M4, M4 Pro) with iOS simulators, and Linux with Android emulators; no Windows | Linux on x86-64 only |
| How long a machine runs | Until the job ends; GitHub stops a self-hosted runner job after 5 days | CI builds time out at 210 minutes (up to 4 hours on Enterprise); dev sessions have no time cap but auto-terminate after 5 days idle by default and stop now and then for maintenance | No session cap on paid plans; stop and start it when you like |
| Files after a stop | The disk is destroyed after each build; cache and disk snapshots (deleted after 15 days) carry state over | Dev sessions keep one persistent disk, which is not backed up; CI machines keep nothing | The disk stays, with snapshots every minute and on stop; a stopped sandbox costs nothing |
| Fork | No fork; a later runner can boot from a saved disk snapshot in 45 to 60 seconds | No fork; warm pools hand out fresh sessions booted from a template | Fork a running sandbox into independent copies |
| Docker and nested virtualization | Docker on runners; /dev/kvm only on Linux x86-64, turned on with a label | Docker and nested virtualization on Linux machines; macOS sessions have neither | Docker, root, systemd and /dev/kvm on every machine |
| Machines at once | Unlimited on Linux and Windows; high macOS concurrency through support | CI Pro runs at most 10 macOS or 30 Linux builds at once; dev environment tiers run 1 to 5 VMs | 100 to 2,000 sandboxes by plan, with limits on starts per minute and per day |
| Coding agents | Runs Claude Managed Agents sessions on stock runners, driven through Anthropic's API | Claude Code started from the CLI and used in a terminal; other agents through warmup scripts | Claude Code, Codex, OpenCode and more preinstalled, driven from outside with a prompt, steer and events API |
| Desktop and computer use | None; runners have no desktop stream | VNC desktop on macOS sessions; an open-source MCP server takes screenshots and controls it | 60fps Linux desktop and Chromium, computer use and browser control, embeddable stream |
| Reaching the machine | All inbound traffic blocked; SSH into failed jobs for debugging | SSH, VNC and a web terminal; no public URL for a port | HTTPS URLs for up to 50 ports, token-protected; raw TCP; SSH |
| Keeping keys out of the machine | GitHub secrets are passed into the runner environment | Secrets are environment variables, so the value enters the machine | AI credentials proxy for model providers and any HTTPS API you register; real keys never enter the sandbox |
| Build pipeline | Drop-in for GitHub Actions, with fast cache and remote Docker builders | Its own workflows, code signing, build cache, store releases and over-the-air updates | None built in; you run the GitHub runner or other tools on a sandbox yourself |
| Where it runs | WarpBuild's cloud, or BYOC in your own AWS, GCP or Azure account | US, Ireland, Frankfurt, Singapore and Sydney, your own AWS account, or self-hosted Bitrise Runners | Managed, in the EU only: Germany, Finland, France |
Every feature Battleships tracks (43)
| Feature | WarpBuild | Bitrise | bochka |
|---|---|---|---|
| Full VM (own kernel) | Yes | Yes | Yes |
| Docker inside | Yes | Yes | Yes |
| Nested virtualization | Yes | Yes | Yes |
| Root | Yes | Yes | Yes |
| Systemd | Not published | No | Yes |
| Desktop GUI | No | Yes | Yes |
| Browser | No | Yes | Yes |
| Computer-use API | No | Yes | Yes |
| SSH | Yes | Yes | Yes |
| Persistent disk | No | Yes | Yes |
| Pause/resume | No | Yes | Yes |
| Automatic snapshots | No | No | Yes |
| Fork/clone | No | No | Yes |
| Live fork (no pause) | No | No | Yes |
| Memory fork | No | No | No |
| Custom image (Docker or snapshot) | Yes | Yes | Yes |
| ≥24 h sessions | Yes | No | Yes |
| Idle auto-stop | Yes | Yes | No |
| Wake on request | Yes | No | No |
| HTTPS preview URLs | No | No | Yes |
| Raw TCP inbound | No | No | Yes |
| Public IPv4 | No | No | No |
| Egress allowlist | Yes | No | No |
| Secret proxy | No | No | Yes |
| Secret proxy for any API | No | No | Yes |
| Preinstalled agents | Yes | Yes | Yes |
| Agent harness API | No | Yes | Yes |
| MCP server | Yes | Yes | No |
| GPU | No | No | No |
| Windows | Yes | No | No |
| Arm64 | Yes | Yes | No |
| Self-hosting | No | Yes | No |
| BYOC | Yes | Yes | No |
| Open source | No | No | No |
| Scoped API keys | Yes | Not published | Yes |
| Spend limits | Not published | Not published | Yes |
| Usage per sandbox (API) | Yes | No | Yes |
| Audit logs | Not published | Not published | No |
| SSO | Yes | Yes | No |
| SOC 2 | Yes | Yes | No |
| HIPAA | No | No | No |
| EU data residency | Yes | Yes | Yes |
| Zero data retention | Not published | Not published | Yes |
Performance
There is no comparable measurement for either: neither WarpBuild nor Bitrise is in StarSling's public sandbox benchmark, so we do not compare speeds. bochka did 26.69 Node.js build-and-test runs per second at 4 vCPU / 8 GB in that benchmark's run of 2026-09-29.
Node.js build-and-test loop at 4 vCPU / 8 GB, higher is better. Measured with the open hpc-sandbox-benchmarks suite. WarpBuild and Bitrise have no published run in this suite yet, so there is no like-for-like number to compare.
Pricing in five scenarios
Each bill is priced from the providers' public price lists by the open Battleships engine, with the cheapest plan that runs the scenario.
| Scenario | WarpBuild, a month | Bitrise, a month | bochka, a month |
|---|---|---|---|
| One coding agent, workdays 4 vCPU / 8 GB, 50 GB disk, 8 hours a day, 22 days a month, files kept between days | $57 · Pay as you go · with limits | $260 · Pro · with limits | $20 · $20/mo |
| One agent that never stops 4 vCPU / 8 GB, 50 GB disk, running 24/7 all month | $237 · Pay as you go · with limits | $119 · RDE Pro · with limits | $26 · $20/mo |
| 50 agents in parallel 50 machines of 4 vCPU / 8 GB at once, 8-hour sessions, 1,100 sessions a month, Docker inside | $2,851 · Pay as you go · with limits | $2,309 · Pro · with limits | $317 · $20/mo × 3 seats |
| Sandboxes for your users 2 vCPU / 4 GB, 30,000 sessions of 10 minutes a month, up to 300 at once | $810 · Pay as you go · with limits | $812 · Pro · with limits | $200 · $100/mo × 2 seats |
| 1,000 short jobs at once 2 vCPU / 4 GB, 1,000 at once, 3 minutes each, 200,000 jobs a month | $1,800 · Pay as you go · with limits | $1,538 · Pro · with limits | $2,000 · $2000/mo · with limits |
WarpBuild: WarpBuild bills runners per minute while a job runs, with no plan fee, from $0.003 a minute for 2 vCPU on arm64; Windows costs twice the Linux x86-64 rate and macOS $0.08 a minute. Cache, snapshot storage and snapshot restores are billed extra.
Bitrise: Bitrise CI is sold by plan: Starter is a flat fee with unlimited minutes on Medium machines, and Pro adds per-minute machine time and a monthly build allowance on top of its fee. Remote Dev Environments charge a base fee with included minutes, then per minute up to a monthly cap per OS.
Bitrise: You pick a monthly plan from $20, and all of it becomes usage credit spent per second on running sandboxes. A stopped sandbox costs nothing and keeps its disk.
Limits in those scenarios
None of the five agent scenarios fits either service as sold, since both are CI products. WarpBuild keeps no disk after a job and GitHub ends a job after 5 days, so an agent that runs all month needs restarts. Bitrise Pro caps builds at 3.5 hours and 10 at once, so 50 agents in parallel and 300 user sandboxes do not fit, though its dev environments can hold one agent all month. On bochka, the 1,000-job burst is limited by starts per minute and per day, so it gets queued even on the $2,000 plan.
| Scenario | WarpBuild | Bitrise | bochka |
|---|---|---|---|
| One coding agent, workdays |
|
| None that bite |
| One agent that never stops |
|
| None that bite |
| 50 agents in parallel |
|
| None that bite |
| Sandboxes for your users |
|
| None that bite |
| 1,000 short jobs at once |
|
|
|
Which one should you use?
Use WarpBuild when
you want faster GitHub Actions CI on Linux, Windows or macOS, with many jobs at once, in its cloud or your own.
- Drop-in GitHub Actions. Useful if your CI already lives in GitHub Actions: change one runs-on label and jobs start on WarpBuild.
- Windows and arm64 runners. Useful if you test on Windows Server or arm64 Linux, which Bitrise does not offer.
- Unlimited Linux concurrency, in any cloud. Useful if you run many jobs at once or need runners inside your own AWS, GCP or Azure account.
Use Bitrise when
you build and ship iOS or Android apps, want a full mobile pipeline with code signing and releases, or need a Mac dev environment with iOS simulators.
- A full mobile CI/CD pipeline. Useful if you ship iOS or Android apps: Bitrise handles builds, code signing, caching, store releases and over-the-air updates.
- Dev environments that keep their disk. Useful if a developer or agent needs a Mac or Linux machine that keeps its files between sessions.
- iOS simulators an agent can drive. Useful if agents test iPhone apps: Bitrise sessions have iOS simulators and an MCP server for the macOS desktop.
Where bochka fits
WarpBuild and Bitrise are both CI services, and bochka is not one. If what you are really running is agents, not build pipelines, bochka gives each one a full Linux VM that keeps its disk, runs with no session cap on paid plans, serves the apps it builds and runs coding agents you drive from outside.
A machine that keeps its work
A WarpBuild runner's disk is destroyed when the job ends, and Bitrise CI builds roll back after 210 minutes. Bitrise dev sessions keep a disk, but it has no backup. bochka snapshots every minute and on stop, and forks a running sandbox.
Apps your agent can show
WarpBuild blocks all inbound traffic and Bitrise has no public URL for a port, so nobody can open what an agent built without a tunnel you set up. bochka serves HTTPS on up to 50 ports, raw TCP and a 60fps desktop.
Agents you drive from outside, keys kept out
WarpBuild hosts only Claude Managed Agents and Bitrise starts Claude Code in a terminal, and both put secrets inside the machine. bochka has a prompt, steer and events API and a credentials proxy that keeps real keys out.
Use bochka when agents need a Linux machine that stays: one that keeps its files, forks, serves the apps it builds, shows a desktop and runs coding agents you drive from outside. Compare it one to one: bochka vs WarpBuild and bochka vs Bitrise.
Questions people ask
Is WarpBuild cheaper than Bitrise?
It depends on the job. In our agent scenarios, one coding agent on workdays comes to $57 a month on WarpBuild and $260 on Bitrise, but 50 agents in parallel come to $2,851 on WarpBuild against $2,309 on Bitrise. For CI runners the two land close, at $864 and $859 a month; bochka comes to $86.
Which is faster, WarpBuild or Bitrise?
We have no comparable measurement for either one, because neither is in the public sandbox benchmark we use. bochka did 26.69 Node.js build-and-test runs per second at 4 vCPU / 8 GB there.
Can WarpBuild or Bitrise run Docker?
WarpBuild runners run Docker, and /dev/kvm is available on Linux x86-64 when you turn it on with a label. Bitrise runs Docker and nested virtualization on Linux machines only; macOS sessions have neither. bochka has Docker, systemd and /dev/kvm on every machine.
Which one has macOS and Windows?
Both rent Apple silicon Macs: WarpBuild as M4 Pro runners for GitHub Actions, Bitrise as M2 Pro, M4 and M4 Pro machines with iOS simulators. Only WarpBuild has Windows Server runners. bochka runs Linux only.
Can I run AI coding agents on WarpBuild or Bitrise?
WarpBuild can host Claude Managed Agents sessions on its stock runners, each on a fresh VM torn down afterwards. Bitrise starts Claude Code in a Remote Dev Environment from its CLI, and other agents can be installed with a warmup script. On bochka the agents come preinstalled and you drive them through an API.
Is bochka SOC 2 compliant?
SOC 2 is in progress. We're open about where we stand: live status at status.bochka.xyz and our data retention policy at docs.bochka.xyz/data-retention. WarpBuild says it is SOC 2 Type 2 compliant, and Bitrise lists SOC 2 Type II and PCI DSS.
Try bochka
Install the CLI, then run bochka new.
Product preview