Full Stack iOS & Web Developer

Hi, I'm
Mesut As

I bring your ideas to life on the App Store as an independent iOS developer, while crafting fast, custom-coded, and performance-oriented websites tailored for products, brands, and businesses.

About

I'm an iOS engineer and founder of TechAs.co, building indie apps end to end, from UI/UX and SwiftUI architecture to Firebase, RevenueCat, and App Store launch. I also design and deliver custom-coded websites, from landing pages and portfolios to multi-page product sites, using modern front-end stacks with a focus on performance, accessibility, and maintainable code. My portfolio includes Focus Next, Titan Fit, English Pro, and Istanbul Guide across productivity, health, education, and lifestyle. iPreggy was a client delivery: end-to-end iOS development for a corporate client, from concept to App Store release. I also founded DevCircleUp, a community where developers share projects and grow together, and I continue to take on freelance iOS and web projects alongside my own releases.

Platform

iOS · iPadOS · macOS · Web

Technology

Swift · SwiftUI · Astro · Tailwind · Firebase

Location

🇹🇷 Istanbul, Turkey

Skills

  • Swift & SwiftUI Development
  • Firebase Auth & Realtime Database
  • RevenueCat Subscription Management
  • App Store Connect Management
  • UI/UX Design
  • RESTful API Integration
  • Git & GitHub Workflow
  • Web Development
  • Frontend Development (Astro, React, Tailwind)

Projects

Indie App Store apps and freelance iOS projects I've shipped.

TechAs.co app icon

TechAs.co

Website Company Site
TechAs.co website preview

Software company — web, mobile, and custom software

Tech stack: Next.js · React · TypeScript · Tailwind CSS · Firebase

Corporate website for TechAs.co, the software company I founded. Showcases our services, portfolio, and contact flow for web development, mobile apps, and custom software projects.

CatchMe app icon

CatchMe

Games Indie Development
CatchMe, 1CatchMe, 2CatchMe, 3CatchMe, 4

React. Chase. Survive.

Tech stack: Swift · SwiftUI · UI/UX · MVVM · Firebase Analytics

A fast-paced reflex arcade game with short, fun sessions. Tap the target, raise your score, unlock tougher challenges, and train visual attention on the go.

ASLIFE app icon

ASLIFE

Website Client Delivery
ASLIFE website preview

Premium Brand · Coming Soon

Tech stack: HTML · CSS · JavaScript · Responsive Design · SEO & Analytics

Corporate coming soon site for a premium brand that designs and produces its own products. Light and dark theme, contact channels, map integration, and a minimal brand-focused interface ahead of the collection launch.

iPreggy app icon

iPreggy

Health & Fitness Client Delivery
iPreggy, 1iPreggy, 2iPreggy, 3iPreggy, 4

Pregnancy Tracker: Fertility, Ovulation & Weekly Baby Updates

Tech stack: Swift · SwiftUI · UI/UX · MVVM · Firebase (Authentication, Firestore)

Commercial pregnancy app for a corporate client, delivered from concept to App Store release with ovulation tracking, weekly baby development updates, and symptom logging.

Gainer Pro app icon

Gainer Pro

Finance Indie Development
Gainer Pro, 1Gainer Pro, 2Gainer Pro, 3Gainer Pro, 4

Taxi & Earnings: Driver Net Profit & Fuel Log

Tech stack: Swift · SwiftUI · UI/UX · MVVM · Firebase (Authentication, Firestore) · RevenueCat

A finance-focused driver assistant for taxi and ride-share drivers with net earnings tracking, fuel expense logging, and daily or weekly revenue analysis.

zDrivePro app icon

zDrivePro

Utilities Indie Development
zDrivePro, 1zDrivePro, 2zDrivePro, 3zDrivePro, 4

USB Storage & Tool: Turn Phone into USB Drive

Tech stack: Swift · SwiftUI · UI/UX · MVVM · RevenueCat

Turn your iPhone into a portable USB storage and file management tool for quick transfers and reliable access on the go.

SkiLab app icon

SkiLab

Travel Indie Development
SkiLab, 1SkiLab, 2SkiLab, 3SkiLab, 4

Ski & Snow Planner: Smart Ski Trip Organizer

Tech stack: Swift · SwiftUI · UI/UX · MVVM · Firebase (Authentication, Firestore) · RevenueCat

Plan ski and snowboard trips, track slope conditions, and stay organized throughout the season with a smart winter sports planner.

Istanbul Guide app icon

Istanbul Guide

Travel Indie Development
Istanbul Guide, 1Istanbul Guide, 2Istanbul Guide, 3Istanbul Guide, 4

Discover: Your Smart Guide to Istanbul

Tech stack: Swift · SwiftUI · UI/UX · MVVM · Firebase (Authentication, Firestore) · RevenueCat

A smart city guide for exploring Istanbul with curated recommendations, routes, and practical local insights.

Titan Fit app icon

Titan Fit

Health & Fitness Indie Development
Titan Fit, 1Titan Fit, 2Titan Fit, 3Titan Fit, 4

Home & Gym: HIIT, Bodyweight Home Workouts

Tech stack: Swift · SwiftUI · UI/UX · MVVM · Firebase (Authentication, Firestore) · RevenueCat

Stay in shape at home or in the gym with HIIT and bodyweight workouts, progress tracking, and customizable programs.

Routine Tasks app icon

Routine Tasks

Productivity Indie Development
Routine Tasks, 1Routine Tasks, 2Routine Tasks, 3Routine Tasks, 4

Habit Planner: Set Goals & Build Routines

Tech stack: Swift · SwiftUI · UI/UX · MVVM · Firebase (Authentication, Firestore) · RevenueCat · UserNotifications

Build habits, set goals, and keep your daily routines sustainable with a focused and motivating planner.

English Pro app icon

English Pro

Education Indie Development
English Pro, 1English Pro, 2English Pro, 3English Pro, 4

Speak English: Language Education

Tech stack: Swift · SwiftUI · UI/UX · MVVM · Firebase (Authentication, Firestore) · RevenueCat · AVFoundation

Improve your English speaking skills with practice-focused lessons, structured modules, and daily reminders.

Focus Next app icon

Focus Next

Productivity Indie Development
Focus Next, 1Focus Next, 2Focus Next, 3Focus Next, 4

Focus & Productivity Assistant

Tech stack: Swift · SwiftUI · UI/UX · MVVM · Firebase (Authentication, Firestore) · RevenueCat

Stay focused, manage tasks, and maintain productivity with a minimal assistant designed to keep distractions away.