Native Android Development
I build production-ready Android apps with Kotlin, Jetpack Compose, MVVM, Clean Architecture, and modern Android components.
Mobile App Developer
Mahmut Alperen Ünal
Kotlin • Jetpack Compose • Flutter
3 years of experience • Founder of AlpWare Studio • Published apps on Google Play
I build privacy-first, offline-first, and Play Store-ready mobile applications with Kotlin, Jetpack Compose, and Flutter.
3+
Years of experience
30+
GitHub repositories
5+
Google Play apps
1K+
Kodex downloads
Focus
Secure, offline-first, and long-term maintainable Android products.
About
Android Developer with 3+ years of experience building and shipping production mobile applications using Kotlin and Flutter.
I focus on modern Android development, offline-first architecture, security, and system-level Android capabilities. Alongside professional work, I build independent products and open-source tools, taking ideas from architecture and development through release and long-term maintenance.
What I Do
Android • Kotlin • Compose • FlutterOffline-first & Secure Apps
I design privacy-first products using Room, AES-256, biometric authentication, Play Integrity API, and secure local data storage.
System-level Android Solutions
I work on advanced Android topics such as foreground/background services, WorkManager, Accessibility Services, performance, and battery optimization.
Release, Maintenance & Productization
I handle Play Store delivery, Firebase Crashlytics/Analytics, AdMob, in-app purchases, and long-term maintenance workflows.
Experience
Android Developer
Inity • Istanbul, Türkiye
01/2024 – 11/2025
- Developed and maintained production Android applications across the full development lifecycle, from requirements to release.
- Engineered offline-first synchronization and background location tracking optimized for accuracy, battery life, and performance under unreliable network conditions.
- Maintained and restored legacy Java-based Android applications, resolving compatibility and stability issues across older codebases.
Mobile Application Developer
Freelance • Kayseri, Türkiye
02/2023 – 11/2023
- Delivered a Flutter-based preschool management application end-to-end, from requirements and UI development to backend integration.
- Independently managed the mobile development lifecycle, translating client requirements into a stable and intuitive product for non-technical users.
Android Developer Intern
Dener Makina • Kayseri, Türkiye
01/2023 – 02/2023
- Built an Android stock tracking application with barcode scanning, data synchronization, and internal ERP integration to support warehouse inventory operations.
Featured Projects
Adaptive-Hz
An open-source, no-root Android system utility that manages refresh rates on a per-app basis. Built with Accessibility Services and an event-driven architecture to dynamically adjust refresh rates based on user interaction, with a focus on performance, battery efficiency, and vendor-specific optimizations for devices such as Samsung and Xiaomi.
Open SourceKotlinSystem-levelAccessibility ServicesPerformanceBattery OptimizationNo-root
Password Book
A fully offline, privacy-focused password manager built with AES-256 encryption, Room-based local storage, biometric authentication, root detection, and Play Integrity API support. Includes OCR, AutoFill, secure backup, encrypted sharing, AdMob, and in-app purchase integrations.
KotlinSecurityAES-256BiometricsPlay IntegrityOffline-firstAdMobIAP
Frekio
A privacy-focused, open-source Internet radio app built with Flutter for Android and iOS. Uses Radio Browser's live station directory and a shared playback state to provide worldwide search, favorites, listening history, live stream metadata, background playback, a sleep timer, home-screen widgets, Android Auto, and CarPlay support.
Open SourceFlutterDartAndroid & iOSBackground AudioAndroid AutoCarPlayPrivacy-first
WiSense
An open-source Android Wi-Fi analyzer that evaluates nearby networks across 2.4 GHz, 5 GHz, and 6 GHz using channel congestion, signal strength, channel width, and frequency overlap. Offers quick and detailed analysis modes, channel usage charts, confidence scoring, alternative channel recommendations, and router setup guides, while processing everything on-device without analytics, ads, or data collection.
Open SourceKotlinJetpack ComposeWi-FiNetworkingMaterial 3Privacy-firstOffline-first
Kodex
A Jetpack Compose Android app for customizable QR code generation and scanning, designed for speed, security, and everyday usability. Includes camera and gallery scanning, history management, categorization, filtering, and offline access.
KotlinJetpack ComposeRoomAESFirebase Crashlytics1K+ Downloads
Novi
An open-source, cross-platform utility that securely forwards Android notifications to macOS over the local network without using any cloud service. Built with Kotlin and Jetpack Compose on Android and a SwiftUI-based macOS menu bar app, featuring QR-based pairing, AES-256-GCM encrypted payload transfer, HMAC-SHA256 request signing, and foreground service support.
Open SourceKotlinJetpack ComposeSwiftUImacOSLocal NetworkAES-256-GCMHMAC
ShadeOn
An open-source Android system utility that attempts to apply dark mode on a per-app basis when native dark theme support is unavailable, without requiring root. Uses Shizuku and an Accessibility Service for foreground-app detection, with automatic strategy fallback, per-package strategy memory, an offline compatibility database, and one-tap restoration.
Open SourceKotlinJetpack ComposeShizukuAccessibility ServiceSystem-levelNo-rootOffline-first
KeymapKit
An open-source, system-level Android keyboard layout solution for physical keyboards without requiring a custom IME. Focused on multi-language support and device-independent usage scenarios.
Open SourceAndroidSystem-levelPhysical KeyboardInputNo IME
Wakeon
An open-source Wake-on-LAN application built with Flutter. Provides device management, quick wake actions, favorites, search, sorting, import/export, and network discovery features for computers, NAS devices, and servers on the local network. Privacy-focused and stores all data locally on the device.
FlutterDartWake-on-LANNetworkingCross-PlatformOpen SourceMaterial 3Offline-first
Score Book
A modern, fully offline scorekeeping app for board games, card games, and game nights. Includes 21 built-in game templates such as 101 Okey, Pişti, Batak, Uno, Backgammon, and Darts, along with custom rules, live rankings, player statistics, game history, undo, result sharing, local backup, and cross-device transfer.
DartFlutterRiverpodOffline-firstGame StatisticsBackup & RestoreMaterial 3IAP
Technical Stack
KotlinJavaJetpack ComposeFlutterDartMVVMClean ArchitectureCoroutinesFlow / LiveDataRoomRetrofitDagger-HiltWorkManagerForeground & Background ServicesAccessibility ServicesFirebase AnalyticsFirebase CrashlyticsFirebase Cloud MessagingAES-256 EncryptionBiometric AuthenticationPlay Integrity APIRoot DetectionOffline-first ArchitectureAdMobIn-App PurchasesPlay Store Release Management
Contact
Feel free to reach out for freelance work, full-time Android roles, mobile product development, or collaborations.