Privacy Policy

Last updated: March 10, 2026

Overview

Just One ("the App") is a habit tracking app built by Ryan Elliott. Your privacy matters. This policy explains what data the App collects and how it is used.

Data Stored on Your Device

All habit data — names, completion history, streaks, and settings — is stored locally on your device using Apple's SwiftData framework. This data is not transmitted to any external server unless you use features that require it (such as account sign-in or purchasing).

Account & Authentication

The App uses Sign in with Apple for authentication. When you sign in, Apple provides:

A unique user identifier
Your name and email (if you choose to share them)

This information is used solely to identify your account for purchase management and entitlement tracking.

Purchases & Billing

The App offers subscriptions and one-time purchases through Apple's App Store (StoreKit) and through ZeroSettle, a third-party payment provider. When you make a purchase:

App Store purchases are handled entirely by Apple. The App receives transaction confirmation but does not see your payment details.
Direct purchases are processed by Stripe via ZeroSettle. Your payment information is handled by Stripe and is never stored by the App. ZeroSettle receives your user ID to manage entitlements.

Analytics & Tracking

The App does not include any third-party analytics SDKs, advertising frameworks, or tracking pixels. We do not track your behavior, sell your data, or share it with advertisers.

Notifications

If you enable daily reminders, notification scheduling is handled entirely on-device. No notification data is sent externally.

Data Sharing

The App does not share your personal data with third parties except as described above (Apple for authentication, Stripe/ZeroSettle for payment processing).

Data Deletion

You can delete all your data at any time by deleting the App from your device. All locally stored habit data will be permanently removed.

Children's Privacy

The App is not directed at children under 13. We do not knowingly collect personal information from children.

Changes to This Policy

We may update this policy from time to time. Changes will be posted on this page with an updated date.

Contact

If you have questions about this policy, contact us at ryan.elliott31@gmail.com.