Choose a sandbox first
You already have an agent loop and need isolated compute, snapshots, or on-demand execution.
Appaloft gives humans two paths: tonight this folder becomes a URL, or teach the Cursor / OpenCode already on this machine. This page uses that product intent — not Issue → Workspace → Proof.
Start here when the job is isolated compute or a coding sandbox. Appaloft’s Agent door teaches the Cursor / OpenCode already on this machine. It is not a hosted sandbox platform.
Scroll horizontally to see every column. Focus the table, then use ←, →, Home, and End to navigate.
| Option | Primary product center | Primary delivery object | Relationship to Appaloft |
|---|---|---|---|
| OpenSandboxOpen comparison | Open-source sandbox infrastructure and a unified SDK | Isolated sandbox / runtime | An isolation layer. Appaloft's Agent door is local appaloft setup agent, not a hosted sandbox. |
| E2BOpen comparison | Cloud sandboxes for agents and code execution | Pausable or resumable sandbox | A hosted sandbox API. That is E2B's center. Appaloft does not replace that layer. |
| ModalOpen comparison | Serverless compute, containers, and sandboxes | Compute job, App, or sandbox | Compute primitives. Appaloft's Deploy door turns this folder into a URL on your Server. |
| DaytonaOpen comparison | Secure, composable development sandboxes | Sandbox, snapshot, and preview | Dev sandboxes. Appaloft's Agent door teaches the Cursor / OpenCode already on this machine. |
Start here when the job is getting an app live. Appaloft’s Deploy door turns this folder into a URL on machines you control. Railway is git-connected services on a hosted cloud.
Scroll horizontally to see every column. Focus the table, then use ←, →, Home, and End to navigate.
| Option | Primary product center | Primary delivery object | Relationship to Appaloft |
|---|---|---|---|
| CoolifyOpen comparison | Open-source PaaS for your own servers | Long-running applications and databases | Both value self-hosting. Appaloft's door is folder-to-URL, plus local appaloft setup agent. |
| DokployOpen comparison | Self-hosted application and database management | Applications, Compose, and databases on servers | A self-hosted runtime panel. Compare on BYOS, not on hosted git. |
| CapRoverOpen comparison | Docker-based self-hosted PaaS | Applications deployed to a cluster | A cluster deploy panel. Appaloft is appaloft up on a Server you bring. |
| VercelOpen comparison | Managed web deployment and frontend cloud | Deployment, preview, and production | A hosted web cloud. Appaloft is not a Vercel replacement. The outcome is still folder-to-URL on BYOS. |
| RailwayOpen comparison | Git-connected services on a hosted cloud | Hosted project / service | The closest compare: folder→URL vs git-required, BYOS vs hosted, appaloft setup agent vs Railway's hosted setup agent. Appaloft does not already ship Railway setup agent. Not a complete replacement. |
| RenderOpen comparison | Managed web services, workers, and datastores | Long-running service | A hosted runtime. Appaloft stays on machines you control. Success is this app's live URL. |
You already have an agent loop and need isolated compute, snapshots, or on-demand execution.
You want git-connected services and hosted machines — Railway, Render, or Vercel may still be the better fit.
You want this folder to become a URL without forced git, on a server you bring, and you already use Cursor or OpenCode.
Keep hosted platforms for hosted work. Use Appaloft for BYOS/self-host and local skill + MCP. Do not treat it as a complete Railway replacement.
The tables describe public product positioning and the decision boundary around Appaloft. They do not claim that another product cannot accomplish a task through extensions, APIs, or external orchestration. Capabilities and pricing change; review each vendor’s official documentation before purchasing.
That is not the main story. The Agent door is appaloft setup agent: it teaches the Cursor / OpenCode already on this machine (skill + MCP). Isolated execution can still compose with specialized sandbox products.
No. It is especially not a complete Railway replacement. If you want hosted machines and git-connected services, evaluate that platform. If you want folder→URL on BYOS, look at Appaloft.
It shows that the control plane observed specific delivery facts such as a digest, runtime state, route, health check, or access result. It is not a security audit, compliance certification, or proof of application correctness.