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FlineDev

Swift tools, apps, and open source by Cihat Gündüz

Cihat Gündüz

Hi, I'm Cihat Gündüz — an indie developer building Swift apps and open source tools for Apple platforms.

Apps (Selection)

TranslateKit

TranslateKit

The most accurate AI translation tool for String Catalogs, with built-in proofreading & deep language context.

Mac
FreemiumKit

FreemiumKit

Simple In-App Purchases and Subscriptions. Paywalls, A/B Testing, Live Notifications & more.

iPhone · iPad · Mac · Vision
Pleydia Organizer

Pleydia Organizer

Smart media renaming for your Movie, TV Show, and Anime collection.

Mac
FocusBeats

FocusBeats

Deep Focus with Pomodoro method & Apple Music playlists. Automatically pauses during breaks.

iPhone · iPad · Mac · Vision
CrossCraft

CrossCraft

Create themed & personalized crosswords. Solve them yourself or share to challenge others.

iPhone · iPad · Mac · Vision
Posters

Posters

Pin interactive movie posters to your walls, with trailers, showtimes & streaming links.

Vision

See all apps with details →

Open Source (Selection)

BartyCrouch 1,410
Localization/I18n tool to incrementally update strings files from code and storyboards.
HandySwift 526
Handy Swift features that didn't make it into the standard library.
ErrorKit 424
Better error handling, logging, and user-friendly error messages for Swift.
HandySwiftUI 223
Reusable SwiftUI components, extensions, and view modifiers.
TranslateKit SDK 206
Pre-translated UI texts for 30+ languages with zero effort.
ReviewKit 70
Smart app review request management that respects users.
LinksKit 67
Drop-in component for social media and app links in SwiftUI.
IntelligenceKit 16
Unified interface for integrating AI services into Swift apps.

View all on GitHub →

Recent Posts

  • Why I'm Not Using Xcode 26's AI Chat Integration (And What Could Change My Mind)

    Why I'm Not Using Xcode 26's AI Chat Integration (And What Could Change My Mind)

    7 missing features keeping me from using Xcode's AI, plus my 5-release roadmap for Apple to catch up with Claude Code and Cursor.

    Developer
  • Top 10 Developer Tools Apple introduced at WWDC25

    Top 10 Developer Tools Apple introduced at WWDC25

    Explore breakthrough features like Foundation Models bringing on-device AI, ChatGPT integration in Xcode, AlarmKit enabling true alarm apps, and major improvements to visionOS spatial experiences.

    Developer
  • Making Swift Error Messages Human-Friendly—Together

    Making Swift Error Messages Human-Friendly—Together

    Swift error messages can be cryptic, but as a community, we can make them clearer. Help others (and your future self) by contributing better explanations.

    Developer
  • Better Error Reporting in Swift Apps: Automatic Logs + Analytics

    Better Error Reporting in Swift Apps: Automatic Logs + Analytics

    Tired of vague bug reports like "it doesn't work"? In this post, you'll learn how to collect automatic logs and track real-world errors in your Swift apps—with just a few lines of code.

    Developer
  • Unlocking the Real Power of Swift 6's Typed Throws with Error Chains

    Unlocking the Real Power of Swift 6's Typed Throws with Error Chains

    Discover how to turn Typed Throws from a headache into a superpower — with clean error handling and powerful debugging insights.

    Developer
  • Swift Error Handling Done Right: Overcoming the Objective-C Error Legacy

    Swift Error Handling Done Right: Overcoming the Objective-C Error Legacy

    Tired of cryptic Swift error messages like '(YourError error 0)'? Here's how to fix them for good—with clarity and elegance.

    Developer

View all posts →