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DEVOPEN // open-source collective

We build in the open.

An Istanbul software collective making free, well-crafted tools for the Flutter ecosystem — no algorithms, no tracking, no lock-in.

9 repos 31+ releases 6 platforms MIT licensed
devopen — zsh
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About

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DevOpen is an Istanbul-based, open-source software collective. We build in the open and ship under the MIT license — no algorithms deciding what you see, no tracking, no lock-in. Code you can read, fork and trust.

Our home is the Flutter / Dart ecosystem: one codebase, six platforms, from mobile to desktop. We obsess over craft — fast, accessible, thoughtfully designed apps that hand control back to the people using them.

Open Source MIT Licensed Flutter / Dart Istanbul
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Team

Three founders,
three disciplines.

Mobile, design and web — three skill sets that complete each other.

Eren Gun
Eren Gun
Co-founder · Mobile & Backend
  • École 42 — Computer Science
DartGoJavaScriptC/C++
Flutter Dart Go Node.js Riverpod Hive
Zeynep Sena Doğan
Z. Sena Doğan
Co-founder · UI/UX & Mobile
  • Yıldız Technical Univ. — Physics
  • École 42 — C/C++
  • Anadolu Univ. — Visual Communication Design
  • QWorld — Quantum (QBronze)
DartC/C++SwiftUI/UX
Flutter Qt 6 SwiftUI Figma
Talha Aksoy
Talha Aksoy
Co-founder · Front-End
  • École 42 İstanbul
JavaScriptTypeScriptC/C++Web
React TypeScript HTML5 CSS
Projects

Things we use and love.

Open-source apps we built for real problems — and actually ship.

Dondurma RSS Reader
4

An open-source RSS/Atom news reader built with Flutter and Material 3. No algorithm, no tracking — just your own feeds.

AndroidiOSWeb WindowsmacOSLinux
9 Themes (Catppuccin) OPML Import/Export Ad Blocker Offline Cache EN / TR
Flutter Dart Android Apple Linux
Repo · 6 releases v1.0.1 · 30 May 2026
SubZilla
3 · ⑂ 2

A Flutter app to track monthly subscriptions and keep your budget under control. Your data stays on your device.

Interactive Charts Calendar View Smart Reminders Local Database Dark Mode
Flutter Dart SQLite Fastlane
Tech Stack

Tools we build with.

The technologies we lean on across mobile, web and systems. Tap one.

Flutter
Dart
React
TypeScript
Go
GitHub
Android
iOS
Linux
Riverpod
SQLite
Fastlane
Contact

Let's build together.

Got an open-source idea, a contribution, or just want to say hi? Our door is always open.

info@devopen.io
Eren Gun
Eren Gun
Mobile & Backend
Z. Sena Doğan
Z. Sena Doğan
UI/UX & Mobile
Talha Aksoy
Talha Aksoy
Front-End