Privacy Policy
Last updated: February 2026
Introduction
CalmGrid ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we handle information when you use our mobile application ("CalmGrid" or the "App").
Information We Collect
Information You Provide (Stored Locally on Your Device)
The information you enter in CalmGrid—such as migraine logs, symptoms, triggers, medications, and preferences—is stored on your device. We do not upload this health-related information to our servers.
Subscription Information (Processed for Purchases)
If you purchase a subscription, your purchase is processed by Apple App Store and managed using RevenueCat. This may include transaction identifiers, subscription status, and related purchase metadata. CalmGrid does not send your migraine logs or other health entries to RevenueCat.
Communications
If you contact us by email, we will receive your email address and the contents of your message, and we will use them only to respond to you and provide support.
Data Collected by Third-Party SDKs
CalmGrid uses RevenueCat to manage subscriptions and the Meta Ads SDK to measure advertising effectiveness. Through these services and the Apple App Store, the following data may be collected and linked to your identity:
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers — Device ID
- Usage Data — Product Interaction, Advertising Data
- Purchases — Purchase History
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases — Purchase History
- Usage Data — Advertising Data, Product Interaction
- Identifiers — Device ID
What We Do Not Collect
We do not collect precise location data or analytics about your health entries. Your migraine logs, symptoms, triggers, and medications are never sent to any server. We do not sell your personal information.
Device Backups
Depending on your device settings, CalmGrid's local data may be included in operating-system backups (such as iCloud backups). These backups are controlled by you and your platform provider; we do not have access to them.
Data Export
When you export your data, the exported file may be shared using your device's sharing features. After export, the security of the exported file depends on where you store or send it (for example, email, cloud storage, or messaging apps).
Data Deletion
Deleting data in the app removes your locally stored CalmGrid data from that device. It does not remove data stored in any device backups you may have created, and it does not affect purchase records maintained by your platform provider (e.g., the App Store) or subscription management records needed to verify your subscription status.
Your Privacy Rights
Depending on where you live, you may have rights to access, delete, or obtain a copy of your personal information, and to object to or restrict certain processing. Because CalmGrid stores your health entries locally on your device and we do not receive them, these rights are generally exercised through the app's export and delete features. For subscription or support-related data we do receive (such as email communications), you can contact us at the address below.
International Transfers
If third-party services process data outside your country (for example, in the United States), they may transfer and process information internationally in accordance with their terms and applicable law.
Children's Privacy
CalmGrid is not directed to children, and we do not knowingly collect personal information from children.
Changes to This Policy
We will update the "Last updated" date and, if changes are material, provide an in-app notice.
Contact Us
If you have questions about this Privacy Policy, please contact us at:
[email protected]In case of any discrepancy between translated versions of this policy, the English version shall prevail.