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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>Chalk Notes — Privacy Policy</title>
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<h1>Chalk Notes — Privacy Policy</h1>
<div class="sub">Last updated: 18 July 2026</div>
<h2>Overview</h2>
<p>Chalk Notes is a chalkboard doodle app for two people. You draw quick sketches on a board, and — if you've paired with someone using a one-time invite code — your doodles sync to the one board you share with them. Chalk Notes is not a social network and not a general messaging app: a board can only ever be shared between the two people who paired it.</p>
<h2>Information We Collect</h2>
<p>Chalk Notes does not ask for your name, email, phone number, or location, and there is no account or sign-in. We use an anonymous, randomly generated device identifier (<code>deviceId</code>) to operate the app and, if you choose to pair a board, to sync doodles between the two paired devices. We also collect:</p>
<ul>
<li>Anonymous usage events (e.g. which screen you opened, whether a doodle was saved) — these are tied to your anonymous <code>deviceId</code>, not to your name or contact details.</li>
<li>An anonymous, randomly generated subscription identifier (via RevenueCat) used only to manage optional subscriptions.</li>
<li>If you choose to submit a bug report from within the app, a screenshot and short description you provide are sent to our support inbox so we can fix the issue. This only happens when you trigger it yourself — it is never automatic.</li>
</ul>
<p>None of this data is sold or used for advertising.</p>
<h2>Shared Boards & Sync (appstudio.tools/chalksync)</h2>
<p>If you create or join a shared board, the following data is sent to our sync service (hosted at <code>appstudio.tools/chalksync</code>) so it can be delivered to the other device on that board:</p>
<ul>
<li>The doodles you draw on a shared board, so they can be delivered to the person you've paired with.</li>
<li>A one-time invite code, generated when you create a board, used once by the other person to pair with you. Once used, the code is no longer valid — no one else can join that board afterward.</li>
<li>Your anonymous <code>deviceId</code> and the anonymous <code>deviceId</code> of the person you've paired with, so the service knows which two devices belong to a board. We do not know who these device IDs belong to — we only see anonymous identifiers, never names, emails, or phone numbers.</li>
</ul>
<p>Doodles on a board are only ever synced between the two devices paired to that board. A board can have at most two participants, and a device only ever has access to boards it created or was invited to.</p>
<h2>Local Storage</h2>
<p>The app stores the following data on your device:</p>
<ul>
<li>Your chalk doodles and the boards you organize them into (including shared boards, once synced)</li>
<li>The doodle shown in your Home Screen widget — for a shared board, this is the latest doodle the other person sent you</li>
<li>App preferences</li>
</ul>
<h2>Your Rights & Data Deletion</h2>
<p>Because Chalk Notes has no accounts, your rights are exercised directly from the app or by contacting us:</p>
<ul>
<li><strong>Leave a shared board</strong> — leaving a board disconnects your device from it; the other person is notified and your doodles are removed from your device.</li>
<li><strong>Delete a board</strong> — deleting a shared board you created removes it and its doodles from our sync service and disconnects the other participant.</li>
<li><strong>Report a board</strong> — if the person you paired with is misusing a shared board, you can report it from within the app; we review reports and may disable the board.</li>
<li><strong>Request full deletion</strong> — you can ask us to delete all sync data associated with your anonymous device identifier by contacting us at the link below.</li>
</ul>
<h2>Third-Party Services</h2>
<p>Chalk Notes uses RevenueCat to manage optional subscriptions (Apple StoreKit handles all payment information; we never see your card details), our own sync service (<code>appstudio.tools/chalksync</code>) to deliver doodles between paired devices, and a lightweight analytics/bug-report service for the anonymous usage events and self-submitted bug reports described above.</p>
<h2>Children</h2>
<p>Chalk Notes is rated 4+ and does not knowingly collect any data from children beyond the anonymous usage and sync data described above.</p>
<h2>Contact</h2>
<p>For privacy questions, or to request deletion of your sync data: open an issue at <a href="https://github.com/aniltaskiran/chalk-notes-support">github.com/aniltaskiran/chalk-notes-support</a></p>
<h2>Changes</h2>
<p>We may update this policy. Material changes will be reflected by updating the "Last updated" date above.</p>
<hr>
<div class="footer">Chalk Notes</div>
</body>
</html>