PostalPlanOpen calculator

TRANSPARENT BY DESIGN

How PostalPlan handles your data

Calculator values are processed in your browser. PostalPlan does not require an account and this application has no database or API endpoint that receives the values entered in the calculator.

01

What happens when you calculate

1You enter valuesAge, policy, sum assured and payment frequency stay in the active page.
2Your browser calculatesJavaScript matches local premium tables and prepares the result on your device.
3You see the resultThe displayed estimate and generated PDF do not need an account or database save.

02

Technology used

Next.js and React

Build the interface and run the interactive calculator in the browser.

TypeScript

Adds type checks to calculation and policy-data code during development.

Local policy tables

Premium rows used by the calculator are bundled with the application code.

jsPDF

Creates a downloadable quotation PDF on the user’s device.

No application database

The current project contains no database client, account system or calculator-submission API.

No form submission

Changing calculator inputs updates in-memory React state instead of sending a form to a server.

03

What this statement covers

This describes the PostalPlan application code and its calculator workflow. Hosting providers may still process ordinary technical request data—such as an IP address or browser information—in infrastructure logs. Third-party resources loaded by the site may also receive normal web-request information. Those infrastructure activities are separate from PostalPlan storing calculator entries.

Accurate trust claim

The architecture supports the statement that PostalPlan does not save calculator inputs in an application database. A technology list alone cannot prove that no network or hosting logs exist.

04

Verify the code and contribute

PostalPlan is developed in a public GitHub repository. Anyone can inspect the application code, review how calculator inputs are handled, report an issue or propose an enhancement. Public source code makes the privacy and calculation claims open to independent review.

Found an incorrect policy detail or have an improvement in mind? Open an issue or submit a pull request so the change can be reviewed publicly.