OctaLab

Visual App Prototyping

Free

Turn your app idea into a working prototype, no code. Drag SwiftUI components, wire up navigation, define data and actions, and tap through a live, interactive preview. OctaLab is a visual app builder. Design, prototype, and preview app ideas for iPhone, iPad, and Apple Watch, directly on your device, no code required. Place SwiftUI components on a device canvas, wire up navigation between screens, define your data and actions, then run a live, interactive preview to feel how your app works. DESIGN VISUALLY • Drag and drop from a library of SwiftUI components onto a device canvas • Resize, position, and style each component with a property inspector • Add real photos from your library to image components • Build for iPhone, iPad, or Apple Watch, the canvas adapts to each CONNECT YOUR SCREENS • Lay out screens on a visual flowchart canvas • Connect them with navigation links: push, sheet, full screen, tab, and alert • Mark an entry screen and see the whole flow at a glance DATA AND LOGIC • Define data models with typed fields and custom enums • Two-way bindings between components and live context variables • Build reusable actions: change state, navigate, call APIs, and more • Import OpenAPI specs to model real API endpoints PREVIEW INSTANTLY • Run your prototype in a simulated device frame • Tap through real interactions: buttons, fields, toggles, sliders • Switch between iPhone, iPad, and Apple Watch as you go • Light and dark mode ORGANIZE YOUR WORK • Start blank or from a built-in template (Todo, Login, Dashboard, Chat, Social, Banking) • Rename, duplicate, and manage all your projects in one place • Projects are saved locally on your device OctaLab is built for designers, makers, students, and anyone who wants to shape an app idea quickly and see it run without writing a line of code.

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OctaLab now runs on Mac, with a native sidebar, tabs, and project gallery. Also in this update: • Add your own photos from your library to any design • Automatic saving as you work — no Save button • Refreshed home screen, templates, and diagram • Many design and stability improvements Thank you for building with OctaLab.

The developer, Novin dokht Elmi, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    • Novin dokht Elmi
    Size
    • 8.5 MB
    Category
    • Developer Tools
    Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
    • iPad
      Requires iPadOS 18.0 or later.
    • Mac
      Requires macOS 15.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Novin Dokht Elmi