Privacy and local processing
What CalcFlow processes, stores locally and deliberately does not collect.
Your calculation runs here
Calculation values are processed in this browser. They are not required by our server to produce a result. The hosting provider still receives normal technical requests needed to serve pages and may retain operational logs under its own retention policy.
Values not collected by default
CalcFlow ships with a no-op analytics adapter and no third-party request.
- No exact input or result values
- No URL fragments or clipboard content
- No internal search terms
- No calculation history or free-text fields
Device-local data
Favorites store calculator IDs. Recent tools store IDs and local timestamps. Preferences, experiment assignments and a future consent decision may also be stored. Calculator values are not placed in localStorage.
Sharing is explicit
A shared calculation places a compact, versioned state in the URL fragment only after a valid result. Fragments are not sent in the HTTP request. Anyone receiving the link can read the included calculation values.
Advertising and payments
The current service contains no advertising network, affiliate link, paid sponsorship, donation or payment integration.
Contact configuration
No public contact channel is configured and the service does not collect messages. This policy will be updated before any contact channel is enabled.
Policy updates
This policy will be updated before trackers, advertising, payments or a public contact channel are activated. Last updated: 3 August 2026.
Clear local data
Removes CalcFlow preferences, favorites, recents, variants, local databases and caches from this device.