Chronograph (macOS)

macOS counterpart of the Pomodoro timer app, sharing a codebase and Core Data schema with the iOS version.

March 2016

Productivity

Chronograph — macOS counterpart of the iOS Pomodoro timer app (App Dev Academy). Native Cocoa/AppKit interface with window-based navigation, custom analog and digital clock views, and shared business logic with the iOS version.

Technical info:

Written in Swift, Cocoa/AppKit with NSWindowController-based navigation and Storyboards
Shared codebase with iOS — all models, networking, Core Data, state machines, managers, and helpers via #if os(macOS) guards
Custom MacAnalogClockView and MacDigitalClockView — native AppKit timer rendering
Statistics screen built with SwiftUI — embedded in the Cocoa app
Same Core Data schema and SynchronizationManager as iOS for cross-device sync
In-App Subscriptions (StoreKit) + Firebase analytics + Crashlytics
Deployment target: macOS 10.14+

My role:

Design app architecture and build from scratch
Design Core Data schema and implement background sync with REST API
Implement statistics screen in SwiftUI
Manage shared Swift codebase and third-party dependencies across platforms
Integration of analytics and In-App Subscriptions

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