H. Cem Öztürk

14 years of building native iOS and macOS products—from a design delivery platform serving 5M+ designers and developers to high-volume banking apps with 1.5M MAU. I also build apps for an audience of one: myself.

2026 • Independent iOS

Bookshelf

An app that keeps your books front and center on your phone.

A personal reading companion that keeps current and recently finished books visible through widgets—like books left on a nightstand or table. I built it because ebooks disappear from view too easily.

Bookshelf App Icon
Bookshelf current and recently read books
Bookshelf Home Screen widgets
Bookshelf reading insights
2026 • Independent macOS

Wobbit

A macOS companion for keeping an eye on your coding agents.

Ever come back to your coding agent after a successful doomscrolling session, only to find it stuck on a permission request? Want a way to check on your agents at a glance? Well, there’s an app for that. Wobbit keeps every session visible in a floating view and lets you respond when an agent needs attention.

Wobbit App Icon
2026 • Independent iOS

Headway

Focus timer with app blocking and stamp rewards.

A focus timer that blocks distracting apps during deep work sessions and rewards completed sessions with collectible stamps.

Headway App Icon Headway App Icon
Headway Focus Timer Dial
Headway Stamp Passport Collection
Headway Focus Insights
2026 • Independent iOS

LeetTrack

Your personal LeetCode companion.

A LeetCode companion app with customizable profile dashboards, reminders, and Home and Lock Screen widgets.

LeetTrack App Icon LeetTrack App Icon
LeetTrack Dashboard
LeetTrack Widgets
LeetTrack Customization
2026 • Independent macOS

ASOResearch

An App Store optimization and competitor-ranking research tool.

An App Store research tool for tracking keyword rankings, finding new keywords, and understanding how competing apps position themselves.

ASOResearch App Icon
ASOResearch keyword rankings and competing apps
2019 – 2025 macOS

Zeplin

A design delivery platform for product teams.

I had the opportunity to work on a product I used every day, helping serve more than five million designers and developers in the process.

Zeplin Icon
Zeplin workspace project overview
Baklava design inspected in Zeplin
Design-system styleguide in Zeplin
2013 – 2019 iOS

Akbank Mobile

The mobile app for Turkey’s third-largest bank, used by millions.

I spent six years building Akbank’s mobile banking app (twice), while also helping build Jüzdan from the ground up and developing features for the Android app.

Akbank Mobile App Icon
Akbank Mobile dashboard
Cards in Akbank Mobile
Investment suggestions in Akbank Mobile
2017 – 2018

Jüzdan

A location-based campaign and digital wallet app. I helped build it with the original team.

App Store →
2015 – 2016

Akbank Mobile for Android

I implemented various features, including a contactless payment experience.

Google Play →
Before 2013 iOS • Android • Unity

Where I started

Interactive exhibitions, consumer Android apps, and an early smartwatch.

Before specializing in Apple-platform products, I built interactive exhibitions and game-like information systems for bespoke hardware at Reo-Tek, developed consumer Android apps at the newly founded agency Mobilerise, and even created apps for the WIMM One smartwatch developer kit.

Thanks for making it all the way down.

Meet Kiki, my favorite code reviewer.