Privacy Policy (English)

Effective Date: April 6, 2026

DaCalc ("we", "us", or "our") respects your privacy. This Privacy Policy explains how information is handled when you use the DaCalc mobile application (the "App").

1. Data Controller

Service name: DaCalc

Contact email: [email protected]

2. Information We Handle

2.1 Information stored on your device

The App may store settings and usage data locally on your device for core functionality, including:

• calculator history
• selected theme/appearance settings
• preferred language or calculator mode settings

This local data is used to provide App features and is not sold.

2.2 Advertising-related information

If ads are enabled in the App, advertising services may process certain information such as:

• device identifiers (for example, advertising identifier, where available)
• approximate location (derived from IP, where applicable)
• diagnostic and performance information
• ad interaction events (views, taps, impressions)

This information may be collected directly by third-party ad providers.