TL;DR
Nimbalyst is the best free, open-source pick in the kanban-plus-agents category: MIT license, all three desktop platforms, an iOS and Android companion, and weekly releases. Pivio is the pick when the workflow layer matters: scheduled prompts, pipelines, a board that syncs two-way with GitHub issues, and the Pivio Cloud phone remote for reviewing and shipping from anywhere. Both are free to download today; open source versus the workflow layer is the honest fault line.
Where Nimbalyst is genuinely better
Nimbalyst is free and MIT-licensed, and that's not a small thing: you can read the code, fork it, and never pay anyone. It's the official successor to Crystal (which Stravu deprecated in February 2026), it ships roughly weekly (v0.69.1 landed July 15, 2026), and it has a genuinely distinctive idea: visual markdown, mockup, and diagram editors living next to your agents. It also ships an iOS and Android companion, so unlike most of the category, it has a real mobile answer. For open-source purists we recommend it without hesitation, including on our Vibe Kanban alternatives page.
Where Pivio is genuinely better
Pivio covers workflow ground Nimbalyst doesn't advertise as of July 2026. Scheduled prompts let you queue work to fire when a Claude Code rate-limit window resets, so your paid plan works while you sleep. Pipelines chain plan, build, review, and ship steps so an agent's output moves forward without you re-prompting. The kanban board syncs two-way with GitHub issues, which means your backlog is the board rather than a copy of it. And the Pivio Cloud remote goes past monitoring: from your phone you can steer agents, read the diff, commit, and push over an end-to-end encrypted link.
There's also a blunter difference: Nimbalyst is a young 0.x project with around 1,270 GitHub stars, roughly 390 open issues, and a team plan still marked "coming soon". Free software with an undefined revenue model is exactly how this category got its graveyard. Pivio is free to download right now, but the plan behind it is settled: a one-time $29 lifetime license that pays for the updates, rather than an undefined revenue model.
Side by side
| Pivio | Nimbalyst | |
|---|---|---|
| Platforms | macOS, Windows, Linux | macOS, Windows, Linux |
| Agent CLIs | Claude Code, Codex, OpenCode (Gemini CLI, Cursor CLI on the roadmap) | Claude Code, Codex, OpenCode |
| Kanban board | Yes, syncs with GitHub issues | Yes, task board is the primary UI |
| Scheduled prompts | Yes (e.g. fire when a rate-limit window resets) | Not advertised |
| Pipelines | Yes (plan → build → review → ship) | Not advertised |
| Visual editors | Embedded browser next to agents | Markdown, mockup, and diagram editors |
| Mobile | Pivio Cloud phone remote (QR pairing, end-to-end encrypted, subscription) | iOS / Android companion |
| License | Closed source | MIT, open source |
| Price | Free right now · one-time $29 lifetime license planned | Free · team plan "coming soon" |
| Maturity | Launched 2026 | Crystal successor · ~1,270 stars · weekly releases |
All facts as of July 20, 2026, from nimbalyst.com and the Nimbalyst repo. The full field is ranked in our best Claude Code orchestrators for 2026, where Pivio sits at #2 and Nimbalyst at #3.
Frequently asked questions
Is Nimbalyst free?
Yes. Nimbalyst is MIT-licensed and free on macOS, Windows, and Linux, with a team plan listed as coming soon as of July 2026. Pivio is also free to download right now; its long-term model is a one-time $29 lifetime license. On price the two are currently even, so the real fault line is open source versus the workflow layer.
What happened to Crystal?
Stravu deprecated Crystal on February 26, 2026 (final release v0.3.5) and named Nimbalyst its official successor. If you were a Crystal user, Nimbalyst is the direct continuation of that project.
Do Pivio and Nimbalyst both have mobile apps?
Both have a phone story, which is rarer than it should be in this category. Nimbalyst ships an iOS and Android companion. Pivio Cloud pairs your phone to the desktop with a QR scan over an end-to-end encrypted connection, and covers watching agents live, steering them, and reviewing and pushing the diff; it is a subscription add-on.
Does Nimbalyst schedule prompts?
Not that it advertises as of July 2026. Scheduled prompts are a Pivio feature: queue a prompt to fire at a set delay, for example the moment a Claude Code rate-limit window resets, so paid capacity does not sit idle.
Want the scheduling, the pipelines, and the phone remote on top of the board?
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