App Development Notes

Mirror of articles by Alok Kumar Singh. The originals live at bestlatestapps.com/blog.

  1. Tic Tac Toe in SwiftUI, Done Properly: Value-Type Game State, Win Detection and an Unbeatable Minimax Opponent
  2. The Sending Side of APNs: A Mac Push Tester with Keychain Certificates, URLSession Client Auth and HTTP/2
  3. The Device Side of APNs: Building a Push Notification Test Client in Swift
  4. Text Plus Audio, Fully Offline: Building a Prayer App with AVAudioPlayer and Lock-Screen Controls
  5. Stop Hand-Rolling Unit Conversions: Foundation's Measurement, Dimension and MeasurementFormatter in Practice
  6. Shipping a 4K Wallpaper App Without Running Out of Memory: ImageIO Downsampling, Core Image Blur and Add-Only Photos Access
  7. Medication Reminders That Actually Fire: Local Notifications, the 64-Notification Limit and Supply Math
  8. From Barcode to PDF: Building a Private, Offline Medication Tracker with VisionKit, WidgetKit and PDFKit
  9. Drag-to-Connect and Game Center Leaderboards in a SwiftUI Puzzle Game, Updated for iOS 26
  10. Convert-As-You-Type Currency Conversion in Swift: Decimal Maths, Cached Rates and Locale-Aware Formatting
  11. Building an Offline-First Bible Reader on iOS: Bundled SQLite, Full-Text Search and iCloud-Synced Notes
  12. Building an Offline eBook Reader for iOS: Downloads, Typography Settings, Reading Progress That Survives Font Changes, and Highlights in the iOS 26 Text APIs
  13. Building an Offline Quotes App in SwiftUI: a 50,000-Quote Library, a Daily Quote Without a Server, Honest Streaks and Share-as-Image
  14. Building an AdMob Earnings Dashboard for iOS: Google OAuth with PKCE, the AdMob Reporting API, Pacific-Time 'Today', and Offline Caching
  15. Building a Tap-to-Match Marble Game with SpriteKit and SwiftUI: Physics, Cluster Matching, Timers, Lives and Power-Ups
  16. Building a Real-Time Mic-to-Speaker App on iOS with AVAudioEngine
  17. Building a Low-Latency Virtual Piano and Drum Kit on iOS with AVAudioEngine
  18. Building a Live iOS Component Catalogue: UIKit and SwiftUI Side by Side, Real Demos, and Code Snippets That Don't Rot
  19. Building a Live Temple Darshan App for iOS: HLS Streaming, Picture-in-Picture, Time-Zone-Correct Aarti Reminders and Notification Actions
  20. Building a Hashtag Copier for iOS: Clean Tags, Editable Lists, Clipboard Privacy and Instagram's New Five-Hashtag Limit
  21. Building a Chromatic Guitar Tuner on iOS: Real-Time Pitch Detection with AVAudioEngine and Accelerate
  22. Animating Algorithms in SwiftUI: A Step-Recorder Pattern for Visualising Sorts, Searches and Graphs
  23. A Practical Guide to iOS Haptics: UIFeedbackGenerator, SwiftUI sensoryFeedback and Core Haptics with AHAP
  24. A Document Scanner in an Afternoon: VisionKit's Camera, Core Image Clean-Up and AirPrint