Gökhan Dağtekin
EN TR

Hi, I'm

Gökhan Dağtekin

Android Developer.

I build Android apps for a living. On the side, I design and publish my own apps on Android and iOS, taking each one from the first idea all the way to the store.

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01How I work

I'm behind every step of my apps: the idea, the design, the code and the store listing.

  1. 01

    Design

    I design the screens and flows myself, starting from the first sketch.

  2. 02

    Build

    I write the code for Android and iOS and keep it clean enough to live with for years.

  3. 03

    Publish

    I prepare the store pages, screenshots and releases on Google Play and the App Store.

  4. 04

    Maintain

    I follow user feedback and keep shipping updates long after launch.

02My apps

Apps I've published.

I've published quite a few apps over the years. Here are six of them.

01/06Finance

Valora

All your investments on one screen.

Track stocks, ETFs, funds, crypto, dividends and cash in one place. There's no need to connect a bank or brokerage account. You can see your returns, dividend income and allocation clearly at any time.

  • iOS
  • Android
Valora com.gdagtekin.investmenttracker

Highlights

  • Stocks, ETFs, funds, crypto and cash together
  • Dividend income and returns at a glance
  • No bank or brokerage connection needed
Website App Store Google Play
02/06Social

Anon Letter

Write a letter to someone you've never met.

Anon Letter has no profiles, photos or followers. You write your letter on a blank page and send it. After a while on the road it reaches someone else, and they can choose to write back.

  • iOS
  • Android
Anon Letter com.gdagtekin.anonletter

Highlights

  • No profiles, photos or followers
  • Letters travel for a while before they arrive
  • Write back to the letters you receive
Website App Store Google Play
03/06Tools

Barcode Scanner

Scan any barcode in seconds, or create your own.

Supports QR, EAN-13, UPC, Data Matrix, Aztec, PDF417, Code 128 and many more. Just point your camera at a code. You can also create your own codes in the same formats.

  • Android
Barcode Scanner com.gdagtekin.codescanner

Highlights

  • QR, EAN-13, Data Matrix, Aztec and more
  • Fast scanning with the camera
  • Create your own codes
Website Google Play
04/06Games

Yirmibir!

Classic Blackjack in your pocket.

Hit, stand or double down and try to beat the dealer to 21. A clean table and quick hands, made for short breaks.

  • Android
Yirmibir! com.gdagtekin.blackjack

Highlights

  • Hit, stand or double down
  • Blackjack pays 3 to 2
  • Quick hands for short breaks
Website Google Play
05/06Business

Stock & Sales

Stock and sales tracking for your small business.

Add your products, record stock coming in and going out, and make sales right from the app. Revenue and profit are shown in clear charts.

  • Android
Stock & Sales com.gdagtekin.possystem

Highlights

  • Records for stock coming in and going out
  • Make sales right from the app
  • Revenue and profit charts
Google Play
06/06Weather

WeathAir

Simple, readable weather.

Current conditions plus hourly and daily forecasts on one screen. I built it with Flutter, and the source code is open on GitHub.

  • Android
WeathAir com.gdagtekin.weather

Highlights

  • Current conditions on one screen
  • Hourly and daily forecasts
  • Built with Flutter, open source
Google Play Source code

03Stores

On Android and iOS.

You can find all of my apps on my Google Play and App Store developer pages.

Google PlayMy Android apps
App StoreMy iOS apps

04Developer options

Go ahead, tweak this page.

I brought a few settings from Android's developer options to this site. Switch them on and off to see what they do.

↳Try tapping the build number seven times.

Developer options
Use developer options

Input

Drawing

Animator duration scaleSpeed up or slow down every animation

Monitoring

About

05Contact

Let's
talk.

Feedback on my apps, a question or just a hello. You can reach me by email or on any of the accounts below.

gdagtekin23@gmail.com