axiom-privacy-ux

# Privacy UX Patterns

Comprehensive guide to privacy-first app design. Apple Design Award Social Impact winners handle data ethically, and privacy-first design is a key differentiator.

## Overview

Privacy manifests (`PrivacyInfo.xcprivacy`) are Apple's framework for transparency about data collection and tracking. Combined with App Tracking Transparency and just-in-time permission requests, they help users make informed choices about their data.

This skill covers creating privacy manifests, requesting system permissions with excellent UX, implementing App Tracking Transparency, managing tracking domains, using Required Reason APIs, and preparing accurate Privacy Nutrition Labels.

## When to Use This Skill

- Creating privacy manifests (PrivacyInfo.xcprivacy)
- Requesting system permissions (Camera, Location, etc.)
- Implementing App Tracking Transparency (ATT)
- Preparing Privacy Nutrition Labels for App Store Connect
- Managing tracking domains to avoid accidental tracking
- Using Required Reason APIs (NSFileSystemFreeSize, UserDefaults, etc.)
- Explaining data usage to users transparently
- Debugging privacy-related App Store rejections

## System Requirements

- **iOS 14.5+** for App Tracking Transparency
- **iOS 17+** for automatic tracking domain blocking
- **Xcode 15+** for privacy reports and manifest editing
- **Spring 2024+** for App Review enforcement

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## Part 1: Privacy Manifests (WWDC 2023/10060)

### Creating a Privacy Manifest

**Xcode Navigator**:
1. File → New → File
2. Choose "App Privacy File"
3. Name: `PrivacyInfo.xcprivacy`
4. Add to app target (or SDK framework)

**File structure** (Property List):
```xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
  "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>NSPrivacyTracking</key>
    <false/>
    <key>NSPrivacyCollectedDataTypes</key>
    <array>
        <!-- Data types collected -->
    </array>
    <key>NS