Local scenario storage
The calculator stores your working scenario on your device. Clearing browser storage, changing devices, or using another browser can remove or hide that local copy.
Privacy
Your retirement scenario stays in your browser.
FERSCalc is built around local scenario storage. This page explains what stays on your device, what the public site measures, and what happens when you export or share a scenario.
Privacy Model
Local-first by design
- Calculator scenario data is stored locally in your browser.
- You do not need an account to use the calculator.
- Public pages use a first-party anonymous visitor cookie for lightweight traffic counts.
- No third-party marketing scripts inspect calculator inputs.
- Exports and share links happen only when you choose them.
Public Analytics
The marketing site measures traffic, not scenarios.
Public pages use a narrow first-party analytics layer so the maintainer can tell whether people are finding the site and whether visitors are new or returning.
That layer does not read calculator scenario inputs, does not use third-party ad tracking, and does not try to follow you across unrelated websites.
Local-Only Details
Exports and share links are deliberate actions.
Exports
Exported files are created in your browser and saved only if you choose to save them. FERSCalc does not keep a server-side file cabinet of your exported reports.
Share links
Share links are point-in-time snapshots of a scenario. Opening one prompts before it replaces your current local scenario, and later edits do not update links that were already copied.
Need Model Scope?
Use the assumptions page for coverage and limits.
Privacy is only one part of trust. For modeled components, known gaps, and when to treat output as directional, use the canonical assumptions and coverage page.