Crux vs Myna

Crux and Myna are both personal assistants tracked by AIDiveForge. Below is a side-by-side comparison of pricing, capabilities, platforms, and ownership — sourced from each tool's live website and verified before publishing.

Crux

The core loop is agentic: you describe a task, and Crux reads files, runs scripts, writes outputs, and edits code — showing you every change before it lands. The vendor demonstrates this with bank statement analysis that reads a CSV, generates a spending report, and patches a budget tracker in one pass. A global overlay (summoned by a single shortcut) lets it operate on top of any open window, so it can read your screen and answer questions about whatever app is in front of you. The beta label on both Mac and Windows builds is real — treat it accordingly before putting it in a daily critical workflow.

Myna

Myna runs entirely inside Claude Code as a local-first agent layer — the vendor describes it as an AI Chief of Staff, covering meeting prep, inbox triage, project status tracking, escalation drafting, and retrieval of past decisions. The architecture the GitHub page documents is 12 agents and 31 skills, built autonomously by Claude Code itself. Nothing leaves your machine, which means it is a viable option for teams operating under data residency constraints where SaaS tools are ruled out before the demo ends. The ceiling appears quickly for teams who do not already live in Claude Code — this is not a standalone app or a web UI, it is a plugin layer, so anyone outside that workflow starts at zero setup cost before getting to zero productivity gain.

Attribute	Crux	Myna
Pricing	Paid	Free
Price	$10 one-time	—
Free trial	No	No
Open source	No	Yes
Has API	No	No
Self-hosted option	Yes	Yes
Platforms	Mac (Apple silicon), Windows	—
Pros	Full local execution — files, chat history, and context never leave your machine — so teams with strict data-handling requirements can use an AI agent without routing sensitive documents through a third-party API. Agentic task sequencing reads files, runs scripts, and edits code in a single pass with every change surfaced for review before it commits, which means you catch errors before they propagate rather than untangling them after the fact. Screen-aware overlay mode reads whatever application is currently open and can answer questions or suggest edits in context, eliminating the copy-paste shuttle between a chat window and the tool you're actually working in. Self-hosted desktop architecture means there is no per-seat API bill scaling with usage, so personal and small-team workloads do not incur the compounding costs that cloud-hosted agents accumulate over a month. Workspace sidebar surfaces connected messaging services (WhatsApp, Telegram, Discord) alongside local files, so task context from conversations and from your filesystem sit in the same session without switching tools.	Fully local execution under MIT license, so teams with data residency requirements can use an AI assistant without routing calendar, email, or project data through a third-party server. Twelve agents covering meeting prep through escalation drafting operate autonomously inside Claude Code, so you are not manually triggering each step or maintaining a separate automation layer. Open-source codebase with MIT license, so a team that hits a capability gap can fork and extend rather than waiting on a vendor roadmap or paying for a feature tier. Self-hosted with no API dependency described, so there is no service outage or pricing change upstream that takes your workflow offline. Covers the full weekly overhead loop — briefings, inbox triage, status tracking, decision recall — inside one plugin layer, so context does not live across five disconnected tools that each require manual updates.
Cons	No API is exposed, so Crux cannot be called by another script, scheduled by a cron job, or embedded in a pipeline — any team that needs their agent to run headless or trigger on an event rather than a human shortcut has to choose a different tool entirely. Both Mac and Windows builds carry a beta designation at the time of listing, which means interface changes, file-handling edge cases, and crash recovery are live risks; production workflows that cannot tolerate unscheduled breakage need to wait for a stable release or use an established alternative. The assistant learns context from your local machine only, so the moment a second team member needs the same shared context — the same file history, the same chat memory, the same agent state — there is no sync mechanism described in the vendor's documentation; teams that reach that coordination need will move to a multi-user platform.	Myna is a Claude Code plugin, not a standalone application — teams not already using Claude Code cannot reach any of the 31 skills without first adopting that environment, which is a non-trivial prerequisite for organizations running different dev toolchains. No API surface is described on the project page, which means teams that need to connect Myna to external systems programmatically — feeding it data from a project management tool or pushing its output to a dashboard — have no documented integration path and will need to extend the codebase themselves. With six stars and zero forks at the time the page was scraped, the community contribution base is thin — teams that depend on this for daily operations and hit a bug are largely dependent on the core maintainer's response cadence, which is the condition under which a team with production uptime requirements switches to a vendor-backed alternative with a support contract.

Bottom line

Crux is paid while Myna is free; Myna is open source. Choose based on which difference matters most for your workflow.

Frequently asked questions

What is the difference between Crux and Myna?

Crux is Paid, while Myna is Free and open source. Compare pricing, free trial, API, platforms, and pros/cons in the table above on AIDiveForge.

Is Crux better than Myna?

It depends on your workflow. Use the side-by-side attributes (pricing, open source, API, self-hosted, platforms) to decide. AIDiveForge does not rank a universal winner — we publish verified facts so you can choose.

Crux vs Myna: which should I pick?

Pick Crux if its pricing model, openness, or platform fit matches your constraints; pick Myna otherwise. Check free-trial availability on each listing if you want to test before committing.

Comparison data is sourced and verified by the AIDiveForge data pipeline. AIDiveForge is editorially independent.