Storage & Privacy Transparency

Cookie & LocalStorage Policy

Last updated: November 12, 2026. A clear explanation of why and how we store information directly in your browser.

Quick Summary

Online Income Calculator operates on a zero-tracking philosophy. We do not use third-party marketing cookies, behavioral ad pixels, or cross-site tracking beacons. We only use your browser's local storage to save your calculation inputs and theme preference so you do not lose your work when refreshing the page.

1. What Are Cookies and HTML5 LocalStorage?

A cookie is a small data file placed on your device by a website server. Cookies are frequently sent back to the server on subsequent requests, enabling session authentication, user tracking, or targeted advertising.

HTML5 LocalStorage is a modern web standard that allows websites to store key-value data directly on your device inside your browser. Unlike cookies, data in LocalStorage is never automatically transmitted across the Internet to web servers. It exists purely within your local browser sandbox, giving you greater privacy and control.

2. How We Use Browser Storage

Online Income Calculator relies solely on client-side storage for essential operational functions. We never access, harvest, or aggregate your stored data. The data you enter remains on your computer or smartphone at all times.

Swipe table horizontally →

Storage Key	Storage Mechanism	Lifespan	Purpose	Classification
online_income_calc_v1_inputs	HTML5 LocalStorage	Persistent (until manually cleared or browser reset)	Stores your toggled income streams, slider values, and calculation presets so your inputs are preserved across page refreshes.	Strictly Functional
theme	HTML5 LocalStorage	Persistent (until manually cleared)	Remembers your visual color preference (dark mode vs white/light mode) to avoid flash of unstyled theme on subsequent visits.	Strictly Functional

3. Third-Party Tracking & Advertising Cookies

We maintain a strict no-third-party-cookie policy. We do not embed Facebook/Meta pixels, Google AdSense behavioral profiling tags, TikTok pixels, or programmatic advertising re-targeting scripts. Your browsing activity on this website is never sold, shared, or matched against cross-site advertising networks.

4. How to Clear or Disable LocalStorage

You maintain full sovereignty over your browser data. You can delete or disable storage at any time using either of the following methods:

In-App Reset: Click the "Reset to Defaults" button on the calculator dashboard. This immediately purges all saved income inputs from your device's LocalStorage.
Browser Settings (Chrome, Firefox, Safari, Edge): Open your browser settings, navigate to "Privacy and Security" → "Site Settings" → "Cookies and site data", locate incomestackcalculator.com, and click "Delete data".
Private / Incognito Mode: If you use our tool in Incognito or Private browsing mode, all LocalStorage entries are automatically erased as soon as you close your browser window.

5. Legal & Regulatory Compliance

Our storage architecture complies with international privacy frameworks:

EU GDPR & ePrivacy Directive (2002/58/EC): Under Article 5(3) of the ePrivacy Directive, storage that is strictly necessary for the delivery of an explicitly requested user service does not require prior intrusive cookie banners. Because our storage is 100% functional and strictly non-tracking, no banner consent wall is required.
California Consumer Privacy Act (CCPA / CPRA): We do not sell or share personal information as defined by California law.
UK Data Protection Act & PECR: Compliant with UK Information Commissioner's Office (ICO) guidelines regarding essential client-side preference storage.

6. Inquiries & Contact

For any questions or technical clarifications regarding our browser storage practices, please contact our privacy compliance desk at privacy@incomestackcalculator.com.