Privacy Policy & Cookie Disclosure
Last Updated: September 2026 • Compliant with EU GDPR, UK GDPR, and California CCPA/CPRA.
1. Zero Server-Side Transmission of Financial Data
At Runway Calculator, privacy is not an afterthought—it is built into our software architecture. All calculation algorithms run strictly within your device’s local browser JavaScript engine.
- Your bank balance, revenue, and payroll numbers are never transmitted over the internet to our servers.
- We do not operate databases storing your proprietary financial information.
- When you close your browser or clear your cache, your session data is removed.
2. How We Use Cookies and Local Storage
Under the EU ePrivacy Directive and GDPR Article 5(3), websites must disclose the use of cookies and local storage tokens:
| Type | Purpose | Duration | Required |
|---|---|---|---|
| Strictly Necessary | Saves your consent preference and local calculator memory across page tabs. | Persistent (Local Storage) | Yes (Exempt) |
| Functional | Remembers chosen presets (e.g. Seed vs Bootstrapped) for convenience. | Session | Optional |
| Third-Party Tracking | Advertising networks, behavioral surveillance, or cross-site tracking. | None | Not Used |
3. California Consumer Privacy Act (CCPA / CPRA)
We do not sell, rent, or share personal information with third-party data brokers. Because our calculators function client-side without registration requirements, we do not compile consumer profiles.
4. Your Rights Under European Data Protection (GDPR)
Under EU/UK GDPR regulations, you maintain the right to access, rectify, or erase any stored personal data. Because we do not store personal data on our servers, clearing your browser cookies and local storage immediately removes all traces of your interactions.