description Introduction

This Privacy Policy applies to the Calcora mobile and web application developed by Mikael Tenshio.

Calcora includes:

• Standard calculator mode for everyday arithmetic
• Scientific calculator mode with trigonometry, inverse trig, logs, roots, powers, constants, factorials, percentages, and Ans memory
• Local calculation history with search, filters, reuse, copy, delete, and clear actions
• Settings for theme, angle unit, decimal precision, vibration, sound preference, and history visibility
• First-launch onboarding plus copy-to-clipboard actions for results and history

Calcora does not show account registration or a custom developer-run backend for storing your calculations. Core expression evaluation runs locally in the app.

database Information Stored Locally

Calcora uses browser or device local storage for app data that helps the calculator feel consistent between sessions.

• Settings such as theme mode, angle unit, decimal precision, vibration, sound preference, and history visibility
• An onboarding flag that tracks whether the welcome screen has already been dismissed
• Calculation history entries when history is enabled, including expressions, results, selected calculator mode, and a time label

In the app, history is kept to a local on-device list of up to 100 saved calculations. Active expression input, preview values, and the current answer state are also handled locally while you use the app.

devices Clipboard and Device Features

Calcora includes user-triggered convenience features that stay tied to your device.

• Copy actions place a result or history entry into your device clipboard only when you tap copy
• Optional vibration feedback can use the device vibration API when supported and enabled by you
• The app listens for keyboard input while the calculator screen is active so you can type expressions directly on supported devices

Clipboard contents and anything you paste elsewhere are then handled by your device or the destination app under their own policies and controls.

analytics Analytics and Third-Party Services

In the Android app, Google Analytics for Firebase is the analytics service used by Calcora.

Where Google Analytics for Firebase is enabled, Google may process limited technical and usage-related information such as app opens, screen interactions, device model, operating system version, app version, and diagnostic information under Google's own terms and privacy policy.

Calcora does not use a separate custom analytics backend, account platform, or developer-run cloud database for its core features. App stores, browsers, operating systems, and device platforms may also process routine technical data when you install, update, or run the app.

Google's privacy information is available at https://policies.google.com/privacy

data_exploration Permissions and Platform Access

• Internet - declared in the Android app and consistent with analytics-enabled builds
• Local storage - used to keep settings, onboarding state, and local history
• Clipboard access - used only when you choose a copy action
• Vibration feedback - used only when supported by the device and enabled in settings

Calcora does not require camera, microphone, contacts, precise location, SMS, call log, calendar, or broad media-library permissions for its current calculator features.

delete Data Retention and Deletion

Locally stored Calcora data remains on the device until you delete it from within the app, clear browser or app storage, or uninstall the app.

• You can delete individual history entries or clear the full saved history from inside Calcora
• Settings and onboarding state remain local until storage is cleared or the app is removed
• Clipboard contents and third-party analytics data are subject to the retention practices of the device platform or third-party service involved

Uninstalling the app or clearing its local storage removes locally stored calculator data from that installation, but Analytics data already processed by third-party services may remain subject to their own retention schedules.

child_care Children's Privacy

Calcora is not directed to children under 13. We do not knowingly collect personal information from children through a developer-managed account system for this app.

mail Contact Us

Email: help.tenshioapps@gmail.com

Effective date: June 15, 2026

Acceptance of Terms

By installing, accessing, or using Calcora, you agree to be bound by these Terms and Conditions. If you do not agree, please discontinue use of the app.

Permitted Use

Calcora is provided as a calculator utility for lawful personal, educational, and internal productivity use. You agree not to misuse the app, interfere with its operation, or use it for unlawful, deceptive, or unauthorized purposes.

Calculation Disclaimer

Calcora is designed to make calculations more convenient, but results are provided for general informational use and may not be suitable for every high-stakes or professional context.

You are responsible for independently verifying outputs before relying on them for financial, engineering, academic, legal, medical, safety-sensitive, or other important decisions.

Local Data and Device Responsibility

You are responsible for your device security, copied content, local history, and any settings or data you keep on a shared or personally managed device.

The developer is not responsible for losses caused by shared-device access, clipboard exposure, browser-storage clearing, uninstallation, or user-initiated deletion of local data.

Analytics and Platform Services

Calcora uses Google Analytics for Firebase as its analytics service. Your use of the app may also involve app stores, browsers, device manufacturers, and operating-system services outside the developer's direct control.

Those services are governed by their own terms and privacy policies.

Intellectual Property

Calcora, including its branding, design, logo, original code, and related materials, is the intellectual property of the developer unless otherwise stated. You may not copy, modify, distribute, reverse engineer, or decompile the app except as allowed by applicable law.

Limitation of Liability

Calcora is provided on an as is and as available basis, without warranties of any kind, to the maximum extent permitted by applicable law.

To the maximum extent permitted by applicable law, the developer, as creator of the app, shall not be liable for inaccurate calculations, copied results, local history loss, device issues, decisions made from calculator output, or any direct, indirect, incidental, consequential, special, or punitive losses or damages arising from or related to your use of, reliance on, or inability to use Calcora.

Nothing in these Terms limits liability where it cannot legally be limited, including rights that cannot be excluded under consumer protection, product liability, or other applicable laws.

Changes to These Terms

These Terms and the accompanying Privacy Policy may be updated from time to time. Continued use of Calcora after updates are published constitutes acceptance of the revised terms.

Contact

If you have questions about these Terms or the Privacy Policy, contact: help.tenshioapps@gmail.com