Privacy Policy

Effective date: June 11, 2026

This Privacy Policy explains how DetailFlow ("DetailFlow," "we," "us," or "our") handles information in connection with the DetailFlow iOS application (the "App"). DetailFlow is a productivity tool for independent mobile auto-detailing professionals. We have built the App to be local-first: your business data stays on your device.

Local-first by design Your business data — customers, vehicles, work orders, invoices, and photos — is stored entirely on your device using Apple's on-device storage (SwiftData and the app sandbox). It is never uploaded to our servers, and we cannot access it. Core features of the App work fully offline.

1. Information We Do Not Collect

We do not collect, transmit, or have any access to the business data you create in the App. This includes:

Customer details (names, phone numbers, addresses, notes)
Vehicle records
Work orders and job history
Invoices and pricing
Photos you capture or import

All of the above lives only on your device. There is no account, no login, and no cloud sync to our infrastructure.

2. Information We Collect

The App connects to the internet only for a limited set of purposes. Through third-party services, the following limited categories of data may be collected:

Category	Purpose
Device identifiers	Advertising attribution and tracking. Collected only after you grant permission through Apple's App Tracking Transparency (ATT) prompt.
Purchase records	Validating your subscription or one-time purchase status and restoring purchases.
Anonymous usage data	Understanding which features are used so we can improve the App. De-identified.
Crash diagnostics	Detecting and fixing stability problems. De-identified.

We do not collect your name, email address, or contact information through the App, and we do not link analytics or crash data to your identity.

3. How We Use Information

Purchases: to process and restore subscriptions and one-time purchases and to confirm your access level.
Attribution: to understand how new users discover the App (only with your ATT consent).
Analytics: to measure feature usage in aggregate and prioritize improvements.
Diagnostics: to identify crashes and bugs and improve reliability.

4. Third-Party Services

We rely on the following third-party services. Each processes data under its own privacy policy:

Apple / StoreKit — handles all subscription and in-app purchase transactions. We never receive or have access to your payment-card information. See Apple's Privacy Policy.
RevenueCat — manages subscription entitlements and purchase validation. See RevenueCat's Privacy Policy.
Singular — provides advertising attribution and collects device identifiers, enabled only after ATT consent. See Singular's Privacy Policy.
Firebase (Google) — provides de-identified analytics and crash reporting. See Firebase's Privacy and Security.
Mixpanel — provides de-identified product analytics. See Mixpanel's Privacy Policy.

5. Tracking and App Tracking Transparency

Tracking that uses device identifiers for advertising attribution (via Singular) is disabled by default. It is enabled only if you grant permission through Apple's App Tracking Transparency prompt. You can review or change this choice at any time in iOS Settings > Privacy & Security > Tracking, or under the DetailFlow entry in iOS Settings. If you decline or later withdraw consent, attribution tracking will not run.

6. Face ID and Biometrics

The App offers an optional Face ID app lock. Biometric verification is performed entirely on your device by iOS. We do not collect, receive, or store any biometric data. If Face ID is unavailable, you can fall back to your device passcode.

7. Photos

Photos are added only when you actively capture or select them, and they are stored locally on your device. We do not upload your photos to our servers.

8. Data Retention and Deletion

Because your business data is stored locally, it is retained on your device until you delete it. Deleting the App removes all of its local data from your device. Any backup files you export are under your control and stored wherever you choose to keep them (for example, iCloud Drive or the Files app); you are responsible for managing and deleting those backups. Limited purchase, analytics, and diagnostics data held by the third-party services above is retained according to their respective policies.

9. Your Rights and Choices

Control advertising tracking through the ATT prompt and iOS Settings.
Delete all local business data by deleting the App.
Export and manage your own backup files.
Manage subscriptions through your Apple ID account settings.

Depending on where you live, you may have additional rights regarding personal data. To make a request or ask a question, contact us at support@youzou.vip.

10. Children's Privacy

DetailFlow is a professional tool and is not directed to children under 13. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with information, please contact us so we can address it.

11. Changes to This Policy

We may update this Privacy Policy from time to time. When we do, we will revise the effective date above and, where appropriate, provide notice within the App. Continued use of the App after an update means you accept the revised policy.

12. Contact Us

If you have questions about this Privacy Policy or our data practices, contact us at support@youzou.vip.