VitaStack

Privacy Policy

Last updated: March 29, 2026

VitaStack is an iPhone app for organizing supplements, building stacks, and logging daily intake. This policy explains what information the app handles and how that information is used.

Information stored in the app

VitaStack stores the data you enter in the app, such as supplement names, schedules, stacks, intake history, settings, and feature preferences. This information is stored locally using Apple platform storage on your device.

Widgets and shared app data

If you use VitaStack widgets, the app shares a limited amount of current tracking data with its widget extension through Apple's app group storage on the same device so the widget can display up-to-date information.

Notifications

If you enable reminders, VitaStack schedules local notifications on your device. These reminders are handled by Apple's notification framework and are not used for advertising or cross-app tracking.

Apple Health

Apple Health integration is optional. If you turn it on and grant permission, VitaStack can write supplement intake events to Apple Health. VitaStack does not read Health data back from Apple Health for this feature.

Purchases

VitaStack offers optional in-app purchases through Apple's StoreKit framework. Payments and billing information are processed by Apple. VitaStack does not directly collect your full payment card details.

Analytics, advertising, and tracking

VitaStack does not use third-party advertising SDKs and does not use third-party analytics or tracking services for cross-app or cross-site profiling.

Data sharing

VitaStack does not sell your personal information. Data may only be shared with Apple services that are necessary to provide the app's platform features, such as notifications, Apple Health permissions, widgets, and in-app purchases.

Your choices

You can delete your app data inside VitaStack, disable notifications at any time, and turn off Apple Health access in iOS settings if you no longer want the app to write supplement intake events to Health.

Contact

For privacy questions, contact hello@springdata.uk.