Privacy Policy
Applies to the rhand.app website and Righthand, Inc. mobile apps.
1. Overview
rhand.app (“the Site”) is a collection of free online tools operated by Righthand, Inc. This policy explains what information is collected when you use the Site and how it is used. The Site requires no signup and does not directly collect personally identifiable information such as names or email addresses.
2. Calculator data
Values you enter into calculators and converters (salary, loan amounts, body metrics, etc.) are processed entirely in your browser and are never sent to or stored on our servers. Closing the page discards your input. A few tools (such as the business registration checker) forward the queried number to a public government API but do not store the results.
3. Cookies and similar technologies
The Site uses cookies for the following purposes:
- Google Analytics (GA4): collects anonymous visit and usage statistics to improve the service, processed under Google's privacy policy.
- Google AdSense: third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites. Google's use of advertising cookies enables it and its partners to serve personalized ads.
- Theme preference: your dark/light mode choice is stored in your browser (localStorage).
4. Opting out of personalized ads
You may opt out of personalized advertising by visiting Google Ads Settings, or opt out of third-party vendors' use of cookies for personalized advertising at www.aboutads.info. You can also block or delete cookies in your browser settings (some features may be limited).
5. Contact
Privacy inquiries: corp.righthand@gmail.com (Operator: Righthand, Inc.)
Effective: 2024-01-01 · Last revised: 2026-08-22
Mobile App Privacy Policies
Select an app to view its privacy policy.
Developer: Righthand, Inc. (라이트핸드) · corp.righthand@gmail.com