Privacy Policy

Advanced Calculus Plus does not collect or transmit personal or sensitive user data from the App to ZONE GAIN LIMITED.

The App does not require users to provide information such as:

• Name;
• Email address;
• Phone number;
• Postal address;
• Precise or approximate location;
• Contacts;
• Photos or videos;
• Audio recordings;
• Financial information;
• Health information;
• Authentication credentials; or
• Other personally identifiable information.

We do not create user profiles based on activity within Advanced Calculus Plus.

Advanced Calculus Plus may process and store information locally on your device in order to provide its functionality. Depending on how you use the App, this may include:

• Calculator history;
• Mathematical expressions and calculation results;
• Functions entered for graphing;
• Saved variables, constants, and expressions;
• Matrix values and calculations;
• Equation solver inputs;
• Calculus tool inputs and results;
• Unit conversion inputs and results;
• Preferred angle mode, such as degrees or radians;
• Decimal precision settings;
• Theme and interface preferences; and
• Other application settings.

This information is used solely to provide the functionality requested by you. This locally stored information is not transmitted to ZONE GAIN LIMITED, is not used to identify you, and is not used to build an advertising or behavioral profile.

Information entered into Advanced Calculus Plus is processed locally for purposes such as performing scientific calculations, plotting mathematical functions, calculating numerical derivatives, calculating definite integrals, solving equations, performing matrix operations, converting units, saving variables, maintaining history, and providing normal application functionality.

We do not use information entered into the App for advertising, profiling, marketing, or tracking.

ZONE GAIN LIMITED does not sell, rent, trade, or share personal or sensitive user data collected through Advanced Calculus Plus because the App does not collect or transmit such data to us.

Information stored locally within the App is not intentionally made available by us to advertisers, data brokers, analytics providers, or other third parties.

The current version of Advanced Calculus Plus does not include third-party SDKs. All core application functionality is developed and implemented in-house.

In particular, we do not integrate third-party advertising, behavioral tracking, analytics, social-media tracking, or user-profiling SDKs into the App.

Because no third-party SDKs are currently included, user information processed by the App is not transmitted to third-party SDK providers by Advanced Calculus Plus. If third-party technology is introduced in a future version of the App, this Privacy Policy and Google Play disclosures will be updated accordingly.

Advanced Calculus Plus does not use personal or sensitive information processed within the App for targeted advertising or cross-app behavioral tracking. We do not sell user data to advertisers or data brokers.

Advanced Calculus Plus does not require users to register or create an account in order to use its described functionality. Accordingly, ZONE GAIN LIMITED does not maintain an Advanced Calculus Plus user-account database containing account-related personal information.

Application information such as calculation history, saved variables, mathematical expressions, and preferences may remain stored locally on your device until it is deleted through available App functionality, the App's storage is cleared through Android settings, or the App is uninstalled.

Because this information is not transmitted to or stored on servers operated by ZONE GAIN LIMITED, we do not maintain server-side copies of this locally stored App data.

Because ZONE GAIN LIMITED does not receive or maintain server-side copies of the mathematical content and preferences stored locally by the App, there is ordinarily no corresponding server-side App data for us to delete.

If you have contacted us directly and wish to request deletion of personal information contained in your support correspondence, you may contact us using the details provided below.

If you voluntarily contact ZONE GAIN LIMITED by email, telephone, or another direct communication method, we may receive information that you choose to provide, such as your email address, name, message contents, and technical details related to your inquiry.

We use support correspondence only as reasonably necessary to respond to your request, address technical issues, and comply with legal obligations. We do not sell support correspondence or use it for advertising.

We follow a data-minimization approach by designing Advanced Calculus Plus so that its principal mathematical functionality can operate locally without requiring personal information to be sent to ZONE GAIN LIMITED.

Keeping App-generated mathematical data locally on the device minimizes external exposure. Users are also responsible for maintaining reasonable security of their devices.

Advanced Calculus Plus is designed to use device capabilities only where necessary for legitimate application functionality. We do not use device access or permissions for undisclosed advertising, behavioral profiling, or surveillance.

Advanced Calculus Plus may be made available to users in multiple countries. Because the App's core mathematical functionality is performed locally, international transfers of personal data are minimized. Support communications provided to ZONE GAIN LIMITED are handled in the United Kingdom.

Depending on your jurisdiction, applicable privacy laws may grant you specific rights regarding personal information held by organizations. Because Advanced Calculus Plus does not transmit local mathematical data to us, we cannot remotely retrieve or modify local app data. For support email records, you may contact us directly to exercise your privacy rights.

Your use of Google Play, Android, device backup services, or your Google account is separately subject to the privacy terms of those respective providers. ZONE GAIN LIMITED does not control external operating-system data practices.

We intend to maintain accurate and transparent disclosures regarding the privacy practices of Advanced Calculus Plus. Our Google Play Data Safety disclosures accurately reflect the data-handling practices of the released App version.

We may update this Privacy Policy from time to time to reflect application improvements, legal compliance, or platform policies. When updated, the Last Updated date at the top will be revised accordingly.

If you have questions, requests, or concerns regarding this Privacy Policy or the privacy practices of Advanced Calculus Plus, please reach out to the developer: