🌐 Multiplatform App + 2 LLMs + App Store
I will design, build, and publish your multiplatform AI app for iOS, watchOS, macOS, and visionOS using SwiftUI, Firebase, OpenAI API, GPT-5.4, GPT-Image, and Apple Intelligence.
$1499.00
I will build your complete multiplatform Apple ecosystem app from design to App Store publication.
This service includes Figma design elements, full SwiftUI multiplatform development, organized Xcode project files, Firebase database integration, and implementation of 2 advanced AI systems using OpenAI API, GPT-5.4, GPT-Image, and Apple Intelligence.
Your app can be developed for iPhone, Apple Watch, Mac, and visionOS, giving your product a strong presence across Apple devices while maintaining a consistent user experience.
This is ideal for founders and businesses who want a premium Apple ecosystem product with AI features built directly into the experience. I handle the full process from interface planning and development to testing, optimization, and final submission support.
Ideal for:
Startups building across Apple platforms
AI apps with chat or image generation
Premium ecosystem apps
Founders wanting one codebase in SwiftUI
Products launching on iPhone, Mac, Watch, and Vision Pro
Your app idea and business goal
Platforms you want included: iOS, watchOS, macOS, visionOS
AI features you want such as chat, smart writing, summaries, or image generation
Brand style, logos, colors, or design references
OpenAI API key
Apple Developer account access
Firebase project access, or I can guide setup
Competitor apps or examples you like
Any initial wireframes or notes
Step 1 — Scope & Platform Planning
I define the app scope, platform requirements, and feature map for iPhone, Apple Watch, Mac, and visionOS.
Step 2 — Figma Design Direction
I prepare multiplatform design elements and establish a consistent Apple-style visual language.
Step 3 — SwiftUI Multiplatform Build
I develop the app in SwiftUI with reusable architecture adapted for the selected Apple platforms.
Step 4 — Firebase Backend Integration
I connect Firebase for core data needs, syncing, and backend support where needed.
Step 5 — AI Feature Integration
I integrate 2 AI systems using OpenAI API, GPT-5.4, GPT-Image, and Apple Intelligence according to the app’s feature set.
Step 6 — Cross-Platform Testing
I refine layouts, behavior, and usability across the included devices and platforms.
Step 7 — App Store Submission Support
I prepare your builds, app assets, and submission flow for App Store publication.
Which platforms are included in this service?
This service can include iOS, watchOS, macOS, and visionOS depending on the selected tier.
Do you use one codebase?
Yes, the app is built in SwiftUI with a multiplatform approach whenever possible.
Can the AI features work differently on each platform?
Yes, I can adapt the experience depending on the device and platform use case.
Is Apple Intelligence included?
Yes, Apple Intelligence is part of the available AI stack when appropriate for the app.
Do you include the design files too?
Yes, the service includes Figma design elements and the Xcode source files.
Can you publish the app for all included platforms?
Yes, App Store submission support is included.