isitup

isitup is a SwiftUI iOS app that monitors your HTTP endpoints and shows their current health status in real time.

What It Does

• Monitors multiple configured services from one dashboard
• Runs endpoint checks and shows state: Healthy, Degrading, Down, Error
• Persists per-service history (status + latency samples)
• Sends smart local notifications (individual + grouped)
• Supports Siri/Shortcuts service checks
• Generates an on-device Daily Digest when Apple Intelligence is available

Screenshots

Baseline Technical Overview

• Architecture: SwiftUI + HealthViewModel (@MainActor) as the app orchestration layer
• Networking: URLSession with HEAD request and GET fallback (5s timeout)
• Persistence:
  • Service config in UserDefaults
  • Sample history in JSON file (Documents directory)
  • PIN in Keychain (Security framework)
• Detection: Statistical anomaly detection on response-time history to classify Degrading
• Notifications: UserNotifications with cooldown tracking and grouped outage alerts
• Siri/Shortcuts: AppIntents for “check all services” and “check single service”
• On-device AI: FoundationModels daily summary generation (iOS 26+ supported devices)

Setup

1. Open isitup.xcodeproj in Xcode.
2. Select the isitup scheme.
3. Run on an iOS Simulator or a physical iPhone.
4. On first launch, allow notifications if you want outage/degrading alerts.
5. (Optional) Add Siri shortcuts from the app for voice checks.

Notes

• Daily Digest appears only on devices where Apple Intelligence is available.
• Service status depends on real endpoint reachability from the running device/simulator.