Desktop · Lite · Max · Ultra X27

DevBox for every level.

A developer workspace — projects, terminal, runtimes and tooling.

Three editions

Lite, Max, and Ultra X27.

Lite is free inside Culltron OS. Max is the professional paid edition. Ultra X27 is the flagship — a strict superset of Max with Aria AI.

Lite · in OS

DevBox Lite

✓Code editor & terminal

✓Project workspace

✓Local runtimes

✓Free in Culltron OS

Max · paid

DevBox Max

✓Everything in Lite

✓Multi-project management

✓Integrated tooling & tasks

✓Runtime & package manager

✓Themes & extensions

Flagship · AI

Ultra X27 · flagship

DevBox Ultra X27

✓Everything in Max

✓Aria code & project help

✓Refactors & explanations

✓Provider-routed AI

✓Local / BYOK / Cloud AI

DevBox Lite is bundled with Culltron OS and is not sold separately. Aria AI is an Ultra X27 feature.

What you get

Built to do real work.

Editor & terminal

A fast editor and integrated terminal in one workspace.

Project management

Switch between projects with their runtimes and tasks.

Runtimes

Manage language runtimes and packages without the friction.

Tasks & tooling

Build, test and run with integrated task runners.

Aria for devs

In Ultra, Aria explains, refactors and scaffolds — your model.

Local & offline

Code stays local; AI runs locally or via your provider.

Editions

DevBox Max, and DevBox Ultra X27.

Max is strong paid software. Ultra X27 adds Aria AI and advanced workflows — the flagship edition, not a bundle.

CapabilityMaxUltra X27

Editor, terminal & projects ✓ ✓

Integrated tooling & tasks ✓ ✓

Runtime & package manager ✓ ✓

Themes & extensions ✓ ✓

Aria code & project help — ✓

Refactors & explanations — ✓

Local / BYOK / Cloud AI — ✓

Get DevBox

Get launch access. Choose the edition that fits.

Culltron OS includes its verified core local apps. This Max product is available only after its signed release artifact is approved; Ultra X27 adds entitled Aria workflows.

Review release status Compare editions

DevBox in depth

DevBox

A developer and device lab on your own machine.

Honest detection of installed toolchains such as adb, emulator, docker, node, godot, blender and flutter.
Lists Android devices and virtual devices and launches them.
A local web-preview server inside device frames, with 10 viewport profiles. iOS frames are viewport-only.
Docker status plus devcontainer and compose file generators.
Packaging helpers: .desktop entries, a Debian skeleton, an AppImage recipe and real tarballs.
A connector for building on a remote Mac you have legal access to. It does not virtualise macOS.

Ultra X27: inspects 1–20 finished release artefacts (APK, AAB, IPA or ZIP) and produces a local SHA-256 integrity receipt and checksum list.

Limits: Integrity receipts are local checksums, not release approval or a publisher signature.

How it works

It is a separate desktop product on Culltron's shared, hardened platform, with its own full editor and local workspace.
A local, authenticated runtime serves the editor. Your files stay on your machine.
A signed licence lease unlocks the paid edition, and Ultra X27 features are enforced by the server, not just hidden.
Changes write new copies, usually with checksum receipts, so originals are not overwritten.

Frequently asked questions

Does DevBox work offline?

Yes. The core editor runs locally through Culltron's runtime on your own machine and keeps files in a local folder.

What does Ultra X27 add?

Ultra X27 inspects 1–20 finished release artefacts (APK, AAB, IPA or ZIP) and produces a local SHA-256 integrity receipt and checksum list.

What are the limits of DevBox?

Integrity receipts are local checksums, not release approval or a publisher signature.

Can I download DevBox today?

Not yet publicly. Builds are tested, but a public download appears only after signing, checksum verification and release approval.

Release status: built and tested in the repository. A public download appears only after signing, checksum verification and release approval; see Downloads. Source of these facts: the product's engineering README.