Privacy Policy

1. Overview

This policy describes how Calcul67or handles information in the iPhone and iPad app and on this website. You do not need a Calcul67or account to use the calculator. Your expressions and calculation history are processed and stored on your device, rather than sent to a calculator server.

The app includes advertising, an optional purchase to remove ads, and optional Game Center features. Those services process some information as explained below.

2. Information and Local Storage

• Calculations and preferences. History, discoveries, settings, recent conversion units and the last displayed result are stored locally to provide app features. History has a retention limit and older entries are automatically removed. You can delete history entries or clear all history in the app.
• Discovery integrity. A device-local random value is stored in Keychain, with a local backup, to check the integrity of discovery records. It is not sent to an advertising service or used as an advertising identifier.
• Support messages. If you email us, we receive your email address, message, and any attachments you choose to send. We use them to respond and investigate the issue. Please do not send sensitive calculations, passwords or payment details.

Locally stored information remains until you clear it, it is removed by the app’s retention limit, or app storage is deleted. Removing the app does not necessarily remove Keychain items or copies in device backups. Support messages are retained as needed to handle the request and related issues, or meet legal obligations. We do not receive a copy of your local calculation history unless you choose to share it with us.

3. Advertising and Your Choices

The ad-supported app uses Appodeal and its advertising partners to display banner ads. They may process device and advertising identifiers (including the advertising identifier when permitted), IP address, approximate location, device information, and ad or product interactions for advertising, measurement, analytics and fraud prevention. The data processed depends on your privacy choices and the advertising services in use. Your calculator expressions and history are not provided to the ad service by Calcul67or.

The app requests Apple’s tracking permission before starting the advertising SDK when the system allows that prompt. You can change this permission in iOS Settings → Privacy & Security → Tracking. Declining tracking does not disable ads or all processing needed to deliver them.

Consent options are presented where required. When available, Settings → Privacy → Ads and Privacy reopens the advertising privacy choices, including consent withdrawal or an opt-out of sale or sharing. With an active Remove Ads entitlement, the app does not start the advertising SDK on launch. Removing ads does not erase information previously processed by advertising services.

See Appodeal’s Privacy Policy for its partners, retention practices and rights requests, and Appodeal’s opt-out information.

4. Analytics and This Website

Calcul67or does not add a separate app analytics or crash-reporting service. The advertising SDK may perform advertising-related analytics as described above. Diagnostics you choose to share with Apple are governed by your Apple privacy settings.

This website does not include advertising trackers, analytics scripts, contact forms, or application cookies. Cloudflare Pages hosts the website and may process connection information, such as IP address, requested URL, browser details and timestamps, to deliver and secure it. The app also requests advertising configuration from a Cloudflare-hosted endpoint; that request does not include your calculations or history. See Cloudflare’s Privacy Policy for its handling of service data.

5. In-App Purchases and Game Center

Apple processes the optional Remove Ads purchase. Calcul67or uses StoreKit transaction and entitlement information to unlock and restore it, and stores the entitlement status locally. We do not receive your payment card details. Apple handles its own transaction records under Apple’s Privacy Policy.

If you are authenticated with Game Center, the app submits your verified discovery count as a leaderboard score. Leaderboard entries can display your Game Center nickname and score to other players. The app does not submit the individual calculation expressions or history with the score. Without Game Center authentication, no score is sent; a queued score may be submitted after you sign in. Manage your Game Center profile and privacy choices in Apple’s settings. See Game Center & Privacy.

6. Sharing, Security and Your Rights

Information is handled by the services described above for the features they provide, and by our email service when you contact support. We do not operate a server that collects your calculation history. Third-party providers may process information in countries other than your own; their policies describe the safeguards and retention that apply.

We use information to provide requested features and support, protect the service, and comply with legal obligations. Where applicable, processing is based on providing the service you request, legitimate interests in support and security, legal obligations, or your consent for advertising and tracking where required.

Depending on your location, you may have rights to access, correct, delete or receive your personal information, restrict or object to processing, withdraw consent, and complain to your local data protection authority. Contact support@calcul67or.download for information we hold, including support correspondence. We may need enough information to verify your request. For data held by Apple, Appodeal or Cloudflare, their privacy policies provide the relevant contact and request options. Clearing local history does not delete a Game Center score or information already held by those providers.

Local storage benefits from the protections provided by iOS, and online service connections use encrypted transport. No storage or transmission method can guarantee absolute security.

7. Children’s Privacy

Calcul67or does not ask users to enter their age, name or contact details to use the calculator. Parents and guardians should review device restrictions, purchase permissions, advertising choices and Game Center settings before allowing a child to use the app.

If you believe a child has provided personal information to us through support, contact support@calcul67or.download so we can review the request and take appropriate steps. Information handled by advertising services and Apple is also subject to their policies and available parental controls.

8. Changes to This Policy

We may update this policy as the app or its services change. The date at the top identifies the latest revision. If a change requires a new privacy choice or consent, that choice will be presented as required.

9. Contact

For privacy questions or requests, email support@calcul67or.download.