Honestum - AI Lifestyle App Across All Apple Platforms
Khaled served as Engineering Lead for Honestum, an AI-powered lifestyle application that shipped across all seven Apple platforms: iOS, iPadOS, macOS, watchOS, tvOS, visionOS, and CarPlay. The project featured a single unified codebase with platform-adaptive UI, CoreML integration for on-device AI inference, and SwiftData for cross-platform data persistence. The MVP was successfully delivered, with the founder currently seeking Series A investment.
Problem Solved
Creating a cohesive AI-powered lifestyle experience across Apple's entire ecosystem requires sophisticated architecture that adapts to each platform's unique interaction paradigms while maintaining consistent functionality and data synchronization.
- •Architected unified codebase supporting all seven Apple platforms
- •Designed platform-adaptive SwiftUI components with conditional compilation
- •Integrated CoreML for on-device AI inference and lifestyle recommendations
- •Implemented SwiftData persistence layer with cross-platform synchronization
- •Developed CarPlay integration with voice-first simplified interface
- •Adapted spatial computing paradigms for visionOS 3D environment
- ✓Successfully shipped MVP across all 7 Apple platforms simultaneously
- ✓Achieved unified codebase architecture reducing maintenance complexity
- ✓Integrated CoreML for on-device AI inference ensuring user privacy
- ✓Implemented SwiftData cross-platform persistence with seamless sync
- ✓Developed innovative CarPlay voice-first interface for automotive context
- ✓Created spatial computing experience for Apple Vision Pro (visionOS)
- ✓Delivered complete product enabling founder to pursue Series A funding
Scale
- • 7 Apple platforms supported
- • Single unified codebase
- • All major Apple form factors covered
Technology Stack
Challenge
Building a single codebase that works correctly across all seven Apple platforms, each with different screen sizes, interaction paradigms, and UI conventions
Solution
Implemented platform-adaptive SwiftUI architecture using conditional compilation (#if os()) for platform-specific features while sharing core business logic and data layer across all platforms
Impact
Achieved significant code reuse while delivering native-quality experiences on each platform
Challenge
CarPlay's extremely limited UI constraints required adapting a feature-rich lifestyle app for automotive context where drivers cannot interact with complex interfaces
Solution
Designed a voice-first interface leveraging SiriKit for hands-free interaction, with minimal visual elements showing only essential information during driving
Impact
Created safe, useful automotive experience without compromising core functionality
Challenge
visionOS spatial computing paradigm required rethinking traditional flat UI design for three-dimensional space
Solution
Leveraged visionOS-specific spatial containers and RealityKit integration to create immersive 3D visualization of lifestyle data while maintaining intuitive interactions
Impact
Delivered compelling Vision Pro experience that showcases lifestyle data in innovative spatial format
Situation
Honestum LLC was developing an AI-powered lifestyle application targeting the entire Apple ecosystem. The startup needed to ship across all seven Apple platforms to provide users with a seamless experience whether they were at their desk, on the go, driving, or using Vision Pro. This ambitious scope required sophisticated architecture to avoid maintaining seven separate codebases.
Task
As Engineering Lead, Khaled was responsible for architecting and implementing a unified codebase that would deliver native-quality experiences across iOS, iPadOS, macOS, watchOS, tvOS, visionOS, and CarPlay while integrating CoreML for on-device AI and SwiftData for cross-platform data persistence.
Action
Khaled designed a platform-adaptive SwiftUI architecture using conditional compilation to share core logic while adapting UI for each platform's unique constraints. For CarPlay, he created a voice-first interface suitable for automotive context. For visionOS, he leveraged spatial containers to create immersive 3D data visualization. The CoreML integration enabled private, on-device AI inference for lifestyle recommendations. SwiftData provided seamless data synchronization across all platforms via iCloud.
Result
The MVP successfully shipped across all seven Apple platforms, a rare achievement that few developers have accomplished. The unified architecture significantly reduced maintenance complexity while delivering native experiences on each platform. The successful delivery enabled the founder to pursue Series A investment with a functional product demonstrating full Apple ecosystem coverage.
Technical
- • Multi-platform SwiftUI architecture patterns
- • CoreML integration for on-device AI inference
- • SwiftData cross-platform persistence
- • CarPlay voice-first interface design
- • visionOS spatial computing paradigms
- • Conditional compilation strategies for platform adaptation
Soft Skills
- • Startup environment engineering leadership
- • Direct collaboration with founder on product vision
- • Balancing platform-specific optimization with delivery speed
Key Insights
- 💡 Few developers have shipped across all Apple platforms - this represents rare ecosystem mastery
- 💡 Platform-adaptive architecture requires understanding each platform's unique strengths and constraints
- 💡 Voice-first interfaces require fundamentally different UX thinking than visual interfaces