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Helmsman vs Reckoner: catalog facts
Helmsman	Reckoner
Free Free and open source under the MIT license.	Free The project is available under the Apache License 2.0.
Command line	Windows, macOS, Linux, Command line
Declarative TOML or YAML configuration Can plan changes before applying them	Declares multiple Helm releases in one course file Can install charts from a Git commit, branch, or release
Requires Helm and access to a Kubernetes cluster	Requires Helm 3 or later to be installed and initialized
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: Apache-2.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 5, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.