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Reckoner vs Helmsman: catalog facts
Reckoner	Helmsman
Free The project is available under the Apache License 2.0.	Free Free and open source under the MIT license.
Windows, macOS, Linux, Command line	Command line
Declares multiple Helm releases in one course file Can install charts from a Git commit, branch, or release	Declarative TOML or YAML configuration Can plan changes before applying them
Requires Helm 3 or later to be installed and initialized	Requires Helm and access to a Kubernetes cluster
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: MIT
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 5, 2026	Official website Full listing and sources Checked October 8, 2026

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