Privacy Policy

Last updated: March 30, 2026

Overview

Stackr is a personal supplement and protocol tracking app developed by Highland Oasis Technologies. Your privacy is important to us. This policy explains what data we collect and how it is used.

Data Storage

All data you enter into Stackr (items, protocols, doses, wellness logs) is stored locally on your device using an on-device database. We do not collect or have access to this data by default.

Optional Account & Cloud Sync

If you choose to create an account and enable cloud sync, your stack data is stored on our servers (powered by Supabase) solely for the purpose of syncing across your devices. We do not sell, share, or use this data for any other purpose. Your data is protected by Row-Level Security, ensuring only you can access your own data.

Subscriptions & Purchases

Stackr Pro subscriptions are processed through Apple's App Store and managed by RevenueCat. We do not have access to your payment information. RevenueCat collects anonymous device identifiers and purchase history solely to manage your subscription status. See RevenueCat's privacy policy for details.

Notifications

Stackr may request permission to send local notifications for dose reminders, reorder alerts, and supply tracking. These notifications are generated entirely on your device. No notification data is sent to our servers.

Analytics & Tracking

Stackr does not use any third-party analytics, advertising, or tracking SDKs. We do not collect usage data, device information, IP addresses, or behavioral data.

Data You Provide

Email address (optional): Only collected if you create an account for cloud sync. Used solely for authentication via magic link. Not shared with third parties.
Stack data: Item names, quantities, dosing schedules, and notes. Stored locally and optionally synced to cloud.
Wellness logs: Energy, mood, sleep, and recovery scores. Stored locally only.

Data Deletion

You can delete all your data at any time by:

Deleting individual items within the app
Signing out (removes cloud sync association)
Deleting the app (removes all local data)

To request complete deletion of cloud data, contact support@mystackrapp.com.

Children's Privacy

Stackr is not intended for use by anyone under 18. We do not knowingly collect data from minors.

Changes to This Policy

We may update this Privacy Policy from time to time. The updated version will be indicated by the "Last updated" date at the top.

Contact

Questions about this Privacy Policy? Contact us at support@mystackrapp.com