Add the Calendula privacy policy, switch to business@ #6
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src/pages/calendula/privacy.astro
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src/pages/calendula/privacy.astro
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---
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import BaseLayout from '../../layouts/BaseLayout.astro';
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import { LEGAL } from '../../consts';
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// App privacy policy for Calendula — required as a public URL by the Google
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// Play Console (mandatory for every app) and linked from the app's About card.
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// Deliberately separate from /datenschutz, which covers this website only.
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//
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// Kept in English because SITE.lang is 'en' and Play's default store listing is
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// en-US; /datenschutz and /impressum stay German for legal reasons.
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//
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// Source of truth for the facts below: the Calendula repository. If the app's
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// permissions or data paths change, update this page and the "Last updated"
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// date. The claim "no INTERNET permission" is verifiable via
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// `aapt2 dump permissions` on any released APK.
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const lastUpdated = '28 July 2026';
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---
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<BaseLayout
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title="Calendula — Privacy Policy"
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description="Privacy policy for the Calendula Android calendar app. No data collection, no tracking, no internet permission."
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width="narrow"
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>
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<article class="prose">
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<h1 class="page-title">Privacy Policy — Calendula</h1>
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<p>
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<strong>Last updated:</strong> {lastUpdated}<br />
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Applies to the Android app <strong>Calendula</strong>
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(package <code>de.jeanlucmakiola.calendula</code>), all versions and all
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distribution channels.
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</p>
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<h2>In short</h2>
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<p>
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Calendula collects nothing, sends nothing, and has no user accounts.
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It has <strong>no internet permission at all</strong> — the app is
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technically incapable of transmitting your data anywhere. Everything it
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shows you is read from the calendars that already exist on your device.
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</p>
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<h2>1. Controller</h2>
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<p>
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{LEGAL.business}<br />
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{LEGAL.street}<br />
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{LEGAL.city}<br />
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Email: <a href={`mailto:${LEGAL.email}`}>{LEGAL.email}</a>
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</p>
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<h2>2. No data collection</h2>
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<p>
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Calendula contains <strong>no analytics, no tracking, no advertising, no
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crash-reporting SDK and no third-party services of any kind</strong>. No
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user profile is created, no identifier is generated, and no data is shared
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with or sold to anyone.
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</p>
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<p>
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The app does not request the <code>android.permission.INTERNET</code> permission.
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Without it, Android prevents the app from opening any network connection.
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This is verifiable: inspect the permission list of any released APK, or read
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the <a href="https://codeberg.org/jlmakiola/calendula" rel="noopener">source code</a>.
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</p>
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<h2>3. Data Calendula accesses on your device</h2>
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<p>
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All of the following is processed <strong>locally on your device only</strong>.
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None of it is transmitted, and none of it is stored by the developer.
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</p>
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<h3>Calendar data</h3>
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<p>
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Calendula is a viewer and editor for the calendars Android already manages.
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It reads and writes events, reminders and calendar settings through
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Android's system calendar provider. The app keeps <strong>no database of
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its own</strong> — your events live in the system calendar, exactly where
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they lived before you installed Calendula, and they remain there if you
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uninstall it.
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</p>
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<p>
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Note: if one of those system calendars is itself synchronised with an
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online account (for example a Google account, or a CalDAV server via
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DAVx5), that synchronisation is performed by Android and that other app —
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not by Calendula. The privacy policy of the respective provider applies
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to it.
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</p>
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<h3>Contacts (optional)</h3>
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<p>
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The “Contact special dates” feature reads birthdays and anniversaries from
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your contacts and mirrors them one-way into a local calendar, so they
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appear alongside your other events. This feature is switched off by
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default, the contacts permission is requested only when you enable it, and
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it is never requested at startup. Contacts are only ever read, never
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modified, and the data does not leave your device.
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</p>
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<h3>Notifications</h3>
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<p>
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Reminders are displayed as local notifications on your device. Nothing is
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sent to a push service.
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</p>
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<h3>Files</h3>
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<p>
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When you import or export an ICS file, Calendula reads or writes exactly
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the file you select through Android's system file picker. The optional
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automatic backup writes an ICS export to the folder you choose. The app has
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no access to other files.
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</p>
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<h3>App settings</h3>
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<p>
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Your preferences (view options, theme, reminder defaults and similar) are
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stored locally on your device and are removed when you uninstall the app.
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</p>
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<h2>4. Crash reports — the only case where data can leave your device</h2>
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<p>
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If Calendula crashes, it offers to report the problem. Nothing is sent
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automatically. The report is copied to your clipboard and your browser is
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opened with the project's issue tracker, the text
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pre-filled. <strong>You see the full content, you decide whether to submit
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it, and you can edit or discard it.</strong>
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</p>
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<p>Such a report contains:</p>
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<ul>
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<li>app version,</li>
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<li>Android version,</li>
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<li>device manufacturer and model,</li>
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<li>your device language,</li>
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<li>the timestamp,</li>
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<li>and the technical stack trace.</li>
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</ul>
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<p>
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It contains <strong>no</strong> event data, <strong>no</strong> contacts
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and <strong>no</strong> personal identifiers.
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</p>
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<p>
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If you choose to submit it, the report becomes a public issue on the
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project's issue tracker at Codeberg, operated by Codeberg e. V.
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Their privacy policy then applies to that submission.
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</p>
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<h2>5. External links</h2>
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<p>
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The settings screen contains links to the source code, the licence, the
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issue tracker and a voluntary donation page (Ko-fi). Following one of these
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links opens your browser and leaves the app; the privacy policy of the
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respective website then applies. Calendula transmits no data of yours in
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the process — it only opens the address.
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</p>
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<h2>6. Permissions and why they exist</h2>
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<ul>
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<li>
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<code>READ_CALENDAR</code>, <code>WRITE_CALENDAR</code> — display and
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edit your events; the core function.
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</li>
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<li><code>POST_NOTIFICATIONS</code> — show reminders.</li>
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<li>
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<code>READ_CONTACTS</code> — optional, only for the “Contact special
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dates” feature.
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</li>
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<li>
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<code>USE_EXACT_ALARM</code>, <code>SCHEDULE_EXACT_ALARM</code> — deliver
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reminders at the exact time, including after snoozing.
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</li>
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<li>
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<code>RECEIVE_BOOT_COMPLETED</code> — re-register pending reminders after
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a restart.
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</li>
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<li>
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<code>REQUEST_IGNORE_BATTERY_OPTIMIZATIONS</code> — only to open the
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system dialog for the “Reliable delivery” setting.
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</li>
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<li>
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<code>WAKE_LOCK</code>, <code>FOREGROUND_SERVICE</code>, <code>ACCESS_NETWORK_STATE</code>
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— required by the Android system component used for scheduled background
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work (WorkManager).
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</li>
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</ul>
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<p>
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<code>ACCESS_NETWORK_STATE</code> allows reading <em>whether</em> a network
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connection exists — it does <strong>not</strong> permit using one.
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Without <code>INTERNET</code>, no connection is possible.
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</p>
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<h2>7. Distribution channels</h2>
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<p>
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Calendula is distributed via F-Droid, Obtainium, a self-hosted repository
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and, where applicable, the Google Play Store. When you download or update
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the app, the operator of that channel processes data (such as your IP
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address) under their own privacy policy. This is outside the developer's
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control and unrelated to the app's own behaviour.
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</p>
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<h2>8. Children</h2>
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<p>
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Calendula is suitable for all ages. Since it collects no data at all, no
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data of children is processed either.
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</p>
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<h2>9. Your rights</h2>
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<p>
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Because the developer processes no personal data of yours, there is no
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stored data to which rights of access, rectification, erasure,
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restriction, data portability or objection (Art. 15–21 GDPR) could
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apply. You may nevertheless contact the address above at any time with any
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question. You also have the right to lodge a complaint with a supervisory
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authority.
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</p>
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<h2>10. Changes to this policy</h2>
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<p>
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Should the app's functionality change in a way that affects data
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processing, this policy will be updated and the date at the top adjusted.
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The version history is publicly traceable in the project's source
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repository.
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</p>
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</article>
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</BaseLayout>
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Reference in New Issue
Block a user