Hello! I am Okan from Istanbul. A Mobile Developer with over 5 years of experience.

Designing, developing, and maintaining high-quality mobile applications for IOS and Android platforms.

To see my projects

Projects

Dec 2025 - Present

Mina - Language Learning Comics

  • Founder & Full-Stack Developer of Mina — a gamified English learning app that teaches through interactive manga/webtoon stories instead of flashcards.
  • Built choose-your-path narratives guiding learners through real-world scenarios (coffee orders, airports, job interviews) with dialogue choices that shape the story and vocabulary.
  • Implemented contextual vocabulary with spaced-repetition review and adaptive difficulty.
  • Shipped cross-platform (iOS & Android) with an episodic, anime-style experience and premium subscriptions.
guidemina.com

Jun 19 - Present

Diziyleogren

  • Co-founder of Diziyle Öğren — an app that teaches English vocabulary through the TV series and movies people already love; learners pick a show and episode, then study its words before watching.
  • Built listening and pronunciation practice plus comprehension quizzes, with English–Turkish explanations for Turkish learners.
  • Led development of the website and cross-platform mobile app (iOS & Android), now past 100,000+ downloads.
  • Selected into the Turkish Exporters Assembly's Startup Program. Tech stack: ASP.NET, Microsoft SQL Server, jQuery, Flutter.
diziyleogren.com

Jan 24 - Mar 26

Orion Innovation

  • Developed advanced mapping features (multi-layer maps, multiple providers, path tracking) for DeerCast, a leading US hunting platform.
  • Integrated shared libraries across multiple GSM Outdoors apps for code reuse and consistency.
  • Designed a modular framework architecture following SOLID principles, with unit tests for each business logic.
deercast.com

2024 - Present

Starpath Protocol

  • Founder & Full-Stack Developer of Starpath Protocol — a mobile MMO strategy game.
  • Built with Flutter Flame; backend and client entirely in Dart with MongoDB.
  • Features include spaceship customization, PvP battles, leveling, missions; optimized for lightweight, strategic play.
Coming soon

Mar 2025 - Still Maintaining

Kilim - İlişki Asistanı

  • Founder & Full-Stack Developer of Kilim — an AI-powered relationship assistant for couples.
  • Built a 24/7 AI chat that analyzes relationship dynamics and delivers personalized, objective advice.
  • Implemented science-based compatibility & communication-style tests couples can compare with their partner.
  • Shipped a privacy-first experience with confidential conversations and premium subscriptions.
kilim.app

June 23 - Jan 24

Miniyol

  • A new business model, Miniyol Self, offering a C2C rent-a-car solution, has been developed by our team.
  • Involvement in the KYC (Know Your Customer) process was undertaken, focusing on the integration of complex dynamic forms and the management of photo and video content.
  • Pixel-perfect pages were coded from Figma designs, ensuring meticulous detail and accuracy in the development process.
miniyol.com

Oct 22 - June 23

Applantis Software

  • Created & maintained a leading tennis application called Serve24 Pro. (Android & IOS)
  • MVMM App Architecture
  • Bloc State Management package to handle app states
  • Codemagic CD/CI tools
  • Git tools

Jul 22 - Jan 23

Fransız Gastesi

  • Fransız Gastesi is a culture & news platform which well-known in Francophonie community.
  • Developed a one-of-a-kind news and blog application with a unique design.
  • WordPress API as a back-end solution.
  • Riverpod State Management. Isar storage.
  • Firebase Notifications & Analytics.
fransizgastesi.com

March 2026 - Still Maintaining

Unplug Alarm

  • Developer of Unplug Alarm — a free, open-source macOS anti-theft app that sounds a loud alarm when someone unplugs your charger or closes your lid.
  • Built smart triggers (power disconnect and/or lid close) that users can toggle with a single click to customize their protection.
  • Implemented a maximum-volume alarm that forces system volume to its peak and keeps sounding until the Mac is unlocked.
  • Designed for real-life use in cafes, libraries, co-working spaces, and airports — with fully transparent, auditable code and no tracking or data collection.
protectmacbook.com