Available for freelance & contract work

Native iOS apps,
built to last.

I design and ship native iOS apps in Swift and SwiftUI — from the first sketch to App Store release.

View my work support@grytsenko.dev
5+
Years with Swift
100%
Native, no wrappers
iOS 16+
Deployment target

What I do

Three ways I usually help

App development

End-to-end native iOS builds. Architecture, implementation, App Store submission and the release process that follows.

Rescue & refactor

Inherited a codebase that fights back? I untangle legacy UIKit, cut crash rates and make the build reliable again.

SwiftUI migration

Incremental moves from UIKit to SwiftUI without freezing your roadmap — screen by screen, shipping the whole time.

Selected work

Apps I've shipped

First app is on the workbench

Nothing is on the App Store yet — I am building in the open and the first release lands here the day it ships. Want an early look, or a build of your own?

Work with me About me
  • Per-app landing page
  • Generated privacy policy
  • Dedicated support page

Craft

The stack I reach for

Native tooling, first-party frameworks and as few dependencies as the job allows — an app you can still build five years from now.

Languages

  • Swift
  • Objective-C
  • SwiftUI DSL
  • Swift Concurrency

Frameworks

  • SwiftUI
  • UIKit
  • Combine
  • SwiftData
  • Core Data
  • CloudKit

Architecture

  • MVVM
  • Clean Architecture
  • Composable state
  • Modular SPM packages

Platform

  • StoreKit 2
  • Push notifications
  • WidgetKit
  • App Intents
  • HealthKit

Quality

  • XCTest
  • Swift Testing
  • Snapshot tests
  • Instruments profiling

Delivery

  • Xcode Cloud
  • Fastlane
  • TestFlight
  • App Store Connect
  • CI/CD

About

I build the kind of app
I'd want on my own phone.

  • Written scope and fixed milestones
  • Weekly TestFlight builds
  • You own the code and the accounts
  • App Store submission handled end to end

I'm Dmytro Grytsenko, an iOS engineer working out of Ukraine. I write Swift for a living and I care about the parts users never name out loud: launch time, scroll that never stutters, state that survives a force quit.

My work sits close to the platform. SwiftUI where it earns its keep, UIKit where it still wins, and a hard preference for Apple's own frameworks over another third-party dependency. That means fewer surprises at review time and an app that survives the next iOS release instead of scrambling for it.

I take on a small number of projects at a time — usually founders shipping a first app, or teams whose iOS codebase has outgrown whoever wrote it.

How it works

From idea to App Store

  1. 01

    Scope

    We agree on what the first release actually needs — and what can wait. You get a written plan with milestones before any code is written.

  2. 02

    Build

    Weekly TestFlight builds, so you are never guessing about progress. Architecture decisions are documented, not buried in commits.

  3. 03

    Ship

    App Store submission, review responses, privacy declarations and release notes. I handle the paperwork that sinks first-time launches.

  4. 04

    Support

    Crash monitoring and OS-upgrade maintenance after launch. New iOS every September should not be a surprise.

Contact

Have an app that needs building?

Send a paragraph about what you're making and roughly when you need it live. I reply to every message within two business days.

support@grytsenko.dev Browse apps