Styx vs Nimbalyst
Styx and Nimbalyst both put coding agents like Claude Code and Codex in a desktop app with parallel sessions and review. Nimbalyst is built around documents, visual editors and shared team work; Styx around every project in one window and keeping agents away from your production keys.
Side by side
| Styx | Nimbalyst | |
|---|---|---|
| Runs on | Mac (Apple silicon); Windows coming | Mac, Windows, Linux; iOS companion |
| Agents | Claude Code, Codex, Gemini CLI, Cursor | Claude Code, Codex; OpenCode, Copilot in alpha; Gemini |
| Price | Free | Free for individuals; Teams $20/user/month; Enterprise custom |
| Each agent isolated | Own git worktree and branch | Optional git worktree per session |
| Scope of one window | Every project you work on | Not part of its docs |
| Review | Diff with per-hunk accept and reject; checks before landing | Red and green per-edit accept or reject; merge in the app |
| Your editor | Imports recents, keybindings and theme; opens files back in it | Built-in code editor plus visual markdown, mockup and diagram editors |
| Secrets | In the macOS Keychain; agents get scoped, expiring access | Not part of its docs |
| Production access | Agents ask; you approve for a set time; Touch ID for live systems | Not part of its docs |
| Audit log | Every request, approval and use, append-only | Not part of its docs |
| Deploy targets | Vercel, AWS, Google Cloud, Supabase, GitHub, SSH | Not part of its docs |
| Cloud workspaces | No: everything runs on your Mac | Not part of its docs; runs on your computer |
| Team collaboration | No | Real-time shared docs, trackers, kanban and chat |
| Issue tracker | No | Built-in task tracker |
“Not part of its docs” means we could not find it in Nimbalyst's own material on 29 September 2026, not that it can never be done with it. Tell us at hello@heystyx.com if something here is wrong and we will fix it.
Where Nimbalyst is ahead
- Visual editing. WYSIWYG editors for markdown, mockups and diagrams, each with the same AI diff review as code.
- Multiplayer. Real-time shared documents, trackers and boards on its Teams plan.
- Task tracking. Agents read and update plans, bugs and to-dos in its built-in trackers.
- Every platform. It ships for Windows and Linux as well as the Mac, and is open source.
Where Styx is different
Agents never hold your keys
Useful agents need real things: a deploy, a database, a server. In Styx the credentials stay in your Mac’s Keychain. When an agent wants production, it stops and asks; you approve it for a set time, with Touch ID for anything live, and the access ends on its own. Every request, approval and use goes into a log nobody can edit.
Every agent, side by side
Claude Code, Codex, Gemini CLI and Cursor’s agent run next to each other in one board, on the subscriptions you already pay for, so you can pick the right agent per task instead of per tool.
Every project, one window
Styx is built around switching between everything you work on: each project, its agents and the ones waiting on you, one keystroke apart. Nothing is organised around a single repository.
One honest limit: this is a guardrail, not a sandbox. Agents run as you, on your Mac, and an agent that deliberately goes around Styx’s tools is not stopped by them.
Which to choose
Choose Nimbalyst if your agent work centres on documents, mockups and plans, or you want to edit with your team in real time. Choose Styx if you want four agents side by side across every project and nothing reaching production without your OK.
Download Styx for Mac. It is free. See every comparison.
Questions
Is Styx a Nimbalyst alternative?
Partly. Both give Claude Code and Codex a desktop app with parallel sessions and review. Nimbalyst is stronger on visual documents and team editing; Styx on running several agents across projects and gating production access.
What is an agentic development environment (ADE)?
An app for managing AI agents that write code, rather than for writing code yourself: several agents in parallel, each isolated on its own branch, with a place to see who needs you and to review what they did. Warp coined the term in June 2025.