arc habit
Privacy Policy
Last updated: June 13, 2026
This Privacy Policy explains how arc habit (the "App") handles user information.
Information We Collect
We may collect the following information to provide, improve, secure, and operate the App.
- Account information: user identifiers managed by Firebase Authentication and authentication-related information.
- Usage data: habits, activity logs, settings, and other information entered or recorded in the App.
- Device and usage information: app usage, crash data, performance data, device information, and advertising identifiers.
- Purchase information: in-app purchase status, subscription status, and transaction-related information.
Purposes of Use
- To provide the App, authenticate users, sync data, and save settings.
- To analyze usage, improve features, and enhance quality.
- To investigate crashes, respond to incidents, and maintain security.
- To display ads, measure ad performance, and prevent ad fraud.
- To verify in-app purchases, subscriptions, and purchase status.
- To respond to legal or policy requirements.
Third-Party Services
The App may use the following third-party services.
- Firebase Authentication
- Cloud Firestore
- Firebase Analytics
- Firebase Crashlytics
- Firebase Cloud Messaging
- Firebase Remote Config
- Firebase Performance Monitoring
- Google AdMob
- Apple App Store / Google Play in-app purchase services
Please refer to each provider's privacy policy for details about information collected by those services.
Ads and Tracking
The App may display ads through Google AdMob. Advertising identifiers, device information, and ad interaction data may be used for ad delivery. On iOS, the App will request permission under App Tracking Transparency when required.
Disclosure to Third Parties
We do not provide personal information to third parties without user consent, except as required by law. Information may be sent to third-party providers as necessary to use the services listed above.
Security
We take reasonable measures to prevent leakage, loss, or damage of collected information.
User Choices
Users may be able to change notification, advertising identifier, and tracking settings through device or in-app settings. For inquiries about account information or saved data, please contact us.
Changes
We may update this Privacy Policy as necessary. Important changes will be announced on this page or in the App.