> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nativeline.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Technical FAQs

> Questions about code, Swift, and development

# Technical FAQs

Questions about the technical aspects of Nativeline and app development for iPhone, iPad, and Mac.

***

<AccordionGroup>
  <Accordion title="What programming language does Nativeline use?">
    Nativeline generates **Swift** code using **SwiftUI** for the user interface.

    * **Swift** — Apple's modern programming language
    * **SwiftUI** — Apple's declarative UI framework
    * Native Apple frameworks for device features (iOS, iPadOS, macOS)

    These are the same technologies professional Apple developers use.
  </Accordion>

  <Accordion title="Can I see the code Nativeline generates?">
    Yes, with the **Pro plan**:

    1. Open your project
    2. Click "Code Editor" tab
    3. Browse all Swift files

    You can view, search, and even modify the code manually.
  </Accordion>

  <Accordion title="Can I edit the code myself?">
    Yes, with the **Pro plan**'s Code Editor. You can:

    * View all Swift source files
    * Make manual edits
    * Fix issues yourself
    * Add custom code

    Edits sync with the AI's understanding of your project.
  </Accordion>

  <Accordion title="Where is my project code stored?">
    Projects are stored locally on your Mac:

    ```
    ~/Documents/Nativeline Projects/[Project Name]/
    ```

    Each project folder contains:

    * Swift source files (.swift)
    * Asset files (images, icons)
    * Xcode project file (.xcodeproj)
    * Configuration files
  </Accordion>

  <Accordion title="Can I open the project in Xcode?">
    Yes. Navigate to your project folder and double-click the `.xcodeproj` file. This opens the project in Xcode where you can:

    * Make advanced modifications
    * Use Xcode-specific features
    * Debug with Xcode's tools

    Note: Extensive Xcode modifications may confuse Nativeline's AI.
  </Accordion>

  <Accordion title="Can I use my project outside of Nativeline?">
    Yes. Your project is stored on your Mac in `~/Documents/Nativeline Projects/` and contains everything needed to:

    * Open in Xcode directly
    * Build independently
    * Hand off to a developer
    * Continue without Nativeline

    You own the code. There's no export needed and no vendor lock-in.
  </Accordion>

  <Accordion title="What iOS versions does my app support?">
    By default, apps target recent iOS versions (typically iOS 17+).

    You can tell the AI to support older versions:
    "Make this app support iOS 16 and later"

    Note: Older iOS support may limit available features.
  </Accordion>

  <Accordion title="Does Nativeline support iPad?">
    Yes! Select **iPad** from the platform selector on the Home Page when creating a project. iPad apps get a larger canvas with sidebar navigation and split views.

    See [Building for iPad](/quick-start/your-first-ipad-app) for a walkthrough.
  </Accordion>

  <Accordion title="Can I build Mac apps?">
    Yes! Select **Mac** from the platform selector on the Home Page. Mac apps:

    * Run natively in a window (no simulator needed)
    * Support menu bars, keyboard shortcuts, and window management
    * Can be exported as DMG files for distribution

    See [Building for Mac](/quick-start/your-first-mac-app) for a walkthrough.
  </Accordion>

  <Accordion title="What AI models does Nativeline use?">
    Nativeline offers four AI modes powered by different models:

    | Mode         | Best For                |
    | ------------ | ----------------------- |
    | **Quick**    | Fast iteration          |
    | **Enhanced** | Most projects (default) |
    | **Max**      | Complex logic           |

    You can switch modes anytime via the AI mode selector. See [AI Modes](/features/ai-modes) for details.
  </Accordion>

  <Accordion title="What is SwiftUI?">
    SwiftUI is Apple's modern UI framework that:

    * Uses declarative syntax (describe what you want)
    * Automatically handles many layout concerns
    * Works across all Apple platforms
    * Is the future of Apple development

    Nativeline generates SwiftUI code for your interfaces.
  </Accordion>

  <Accordion title="What about UIKit?">
    UIKit is Apple's older UI framework. Nativeline primarily uses SwiftUI but can use UIKit when needed:

    * Some features not yet in SwiftUI
    * Specific customization needs
    * Legacy integrations

    The AI handles which framework to use.
  </Accordion>

  <Accordion title="Can I use CocoaPods or Swift Package Manager?">
    Yes. The AI can add dependencies:

    * "Add the Alamofire networking library"
    * "Include the Kingfisher image loading package"

    Swift Package Manager is preferred for modern dependencies.
  </Accordion>

  <Accordion title="How does data persistence work?">
    **Local storage options:**

    * **UserDefaults** — Simple key-value storage
    * **SwiftData** — Apple's modern ORM framework
    * **Core Data** — Older but powerful database

    **Cloud storage:**

    * **Supabase** — Recommended backend
    * **CloudKit** — Apple's iCloud service
    * **Custom APIs** — Your own server

    Tell the AI what kind of persistence you need.
  </Accordion>

  <Accordion title="Can my app work offline?">
    Yes. For offline support:

    * Local storage for data (SwiftData, UserDefaults)
    * Cache remote data locally
    * Sync when connection returns

    Tell the AI: "Make this feature work offline and sync when connected"
  </Accordion>

  <Accordion title="How do I add push notifications?">
    Push notifications require:

    1. Apple Developer account
    2. Push capability enabled
    3. Backend to send notifications

    With Supabase or your own server:
    "Add push notifications for new messages"

    See [Capabilities](/features/capabilities) for setup.
  </Accordion>

  <Accordion title="Can I use HealthKit or other Apple frameworks?">
    Yes! Most Apple frameworks are available:

    * **HealthKit** — Health data
    * **HomeKit** — Smart home
    * **SiriKit** — Voice commands
    * **ARKit** — Augmented reality
    * **Core ML** — Machine learning

    Tell the AI which framework to use. Some require capabilities enabled in Settings.
  </Accordion>

  <Accordion title="What about Core Data?">
    Nativeline can use Core Data, though SwiftData is preferred for new projects (it's simpler and more modern).

    If you specifically need Core Data:
    "Use Core Data instead of SwiftData for the database"
  </Accordion>

  <Accordion title="Can I use animations?">
    Yes! SwiftUI has built-in animation support:

    * "Add a bounce animation when the button is tapped"
    * "Animate the transition between screens"
    * "Add a loading spinner animation"

    Custom animations, Lottie files, and more are possible.
  </Accordion>

  <Accordion title="How do I handle different screen sizes?">
    SwiftUI handles most responsive layout automatically. For specific needs:

    * "Make this layout responsive for all iPhones"
    * "Use a different layout on larger screens"
    * "Stack these items vertically on smaller phones"
  </Accordion>

  <Accordion title="Can I add in-app purchases?">
    Yes, using StoreKit:

    * "Add a premium upgrade as an in-app purchase"
    * "Create a subscription for \$4.99/month"

    You'll need:

    * Apple Developer account
    * Products configured in App Store Connect
    * Testing with sandbox accounts
  </Accordion>

  <Accordion title="Is the code clean and maintainable?">
    Nativeline generates:

    * Well-structured Swift code
    * Appropriate separation of concerns
    * Standard iOS patterns (MVVM typically)
    * Comments where helpful

    A professional developer could take over the codebase.
  </Accordion>

  <Accordion title="Can I version control my project with Git?">
    Yes! The project folder is a standard file structure. You can:

    * Initialize a Git repository
    * Commit changes
    * Push to GitHub/GitLab
    * Collaborate with developers

    Just navigate to your project folder and use standard Git commands.
  </Accordion>
</AccordionGroup>

***

## Related FAQs

<CardGroup cols={2}>
  <Card title="Building Apps" icon="hammer" href="/faqs/building">
    Creating features
  </Card>

  <Card title="AI Modes" icon="wand-magic-sparkles" href="/faqs/ai-modes">
    Mode selection questions
  </Card>

  <Card title="Multi-Platform" icon="display" href="/guides/multi-platform">
    iPhone, iPad & Mac guide
  </Card>

  <Card title="Troubleshooting" icon="wrench" href="/faqs/troubleshooting">
    Fixing issues
  </Card>
</CardGroup>