Last updated: Oct 23 2025

Calculus Pro - Scientific Calculator ("we," "our," or "the app") is committed to protecting your privacy. This Privacy Policy explains how we handle information in connection with your use of our calculator application.

## Information We Do Not Collect

We want to be completely transparent about what we do not collect:

### Personal Information

We do NOT collect, store, or process any personal information including but not limited to:

- Name, email address, or contact information

- Location data

- Device identifiers

- IP addresses

- Photos or media files

- Contact lists

- Any other personally identifiable information

### Calculation Data

We do NOT collect, store, or transmit:

- Your mathematical calculations

- Input expressions

- Calculation history

- Any data you enter into the calculator

- Memory storage contents

### Usage Analytics

We do NOT collect:

- Usage statistics

- App performance data

- Crash reports

- User behavior analytics

- Any tracking information

## How the App Works

Calculus Pro operates entirely on your device:

- All calculations are performed locally on your device

- No data is sent to external servers

- No internet connection is required for core functionality

- All temporary data is stored only in your device's memory during app use

## Data Storage

The app may store temporary calculation data in your device's local memory during your current session. This data is:

- Not transmitted anywhere

- Cleared when you close the app

- Used only for the current calculation session

- Stored exclusively on your device

## Third-Party Services

Our app uses the following third-party libraries:

### math_expressions

- Used for mathematical expression parsing and evaluation

- Operates entirely locally on your device

- Does not transmit any data

- Open-source library (https://github.com/fkleon/math_expressions)

### Flutter Framework

- Google's UI toolkit for building native applications

- Required for app functionality

- Does not collect personal data through our implementation

## Children's Privacy

Our app is safe for users of all ages:

- We do not collect any personal information from anyone

- The app contains no advertisements

- No in-app purchases

- No social features

- No data sharing of any kind

## Your Rights

Since we don't collect any personal data, you have:

- Complete privacy while using the app

- Full control over your calculation data

- No need to request data deletion as we don't store it

- No concerns about data breaches involving your information

## Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by:

- Posting the new Privacy Policy on this page

- Updating the "Last updated" date

- Notifying through app store updates when possible

## Contact Us

If you have any questions about this Privacy Policy, please contact us at:

[Your email address]

## Consent

By using our application, you hereby consent to our Privacy Policy and agree to its terms.

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**Additional Information:**

Since your app doesn't collect any data, this privacy policy is very straightforward. You can customize the [Date] and [Your email address] sections when you publish it.

To use this on sites.google.com:

1. Create a new Google Site

2. Copy and paste this privacy policy

3. Customize the date and contact information

4. Publish the site

5. Link to it from your app's store listing