Last updated: August 2026
Wuxi Origin Technology Co., Ltd. ("we", "us") operates Calc Plus. This Privacy Policy explains how we handle information when you use the app.
1. Information We Do Not Collect Directly
The app does not require account registration or login. We do not ask for your name, phone number, email address, or other contact information through the app.
2. Local Storage on Your Device
Calculation history, custom templates, language preferences, and other settings are stored locally on your device. This data is not uploaded to our servers unless you choose to share it outside the app. You can remove it by deleting the app or clearing app data.
3. Network and Third-Party Services
When you use the app, we and our service providers may collect certain information through third-party SDKs, including:
- Firebase Analytics: app usage events (such as opening a calculator or using a template), device model, operating system version, app version, language, and a per-session identifier. We do not collect the numbers you enter or your calculation results.
- Firebase Crashlytics: crash logs, stack traces, and related device information to help us diagnose and fix stability issues.
- Google AdMob: advertising identifiers and ad interaction data to deliver and measure ads. Ad serving requires a network connection.
These services are operated by Google LLC and are governed by their privacy policies. See https://policies.google.com/privacy for more information.
4. Core Features and Network Access
Core calculator features can be used without a network connection. Analytics, crash reporting, ads, and remote configuration require network access.
5. Children's Privacy
The app is not directed at children under 13, and we do not knowingly collect personal information from children.
6. Policy Updates
We may revise this Privacy Policy from time to time. Material changes will be reflected in an updated version within the app and on this page.
7. Contact
If you have questions about this Privacy Policy, please contact Wuxi Origin Technology Co., Ltd. through the app store listing or official support channels.