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Mobile apps that scale

Native iOS and Android apps — strategy, UX/UI design, engineering, and release support from a single team.

What we deliver

01

Mobile App Strategy

We define product goals, target platforms, and feature priorities — building a measurable mobile app roadmap before development begins.

02

Mobile UX/UI Design

Thumb-friendly mobile interfaces built around native interaction patterns, accessibility standards, and validated wireframes and prototypes.

03

iOS & Android Development

Native iOS and Android apps — and cross-platform builds — engineered for performance, reliability, and scale.

04

Testing & App Launch

Automated and manual testing across real devices — followed by App Store and Google Play release with ongoing support.

Process

  1. 01

    Discover

    We learn about your business, users, and goals to define a clear vision and roadmap for your mobile app.

  2. 02

    Design

    Wireframes, interactive prototypes, and native interaction patterns validate mobile flows before engineering begins.

  3. 03

    Deliver

    Engineer, test, and release native apps tuned for performance, reliability, and store-ready production.

Technologies we use

We choose the right tools for each project — focusing on performance, scalability, and long-term maintainability.

Swift

A modern, type-safe language by Apple for building performant native iOS, iPadOS, and macOS apps.

Expo

A managed React Native platform with over-the-air updates, native module access, and faster iteration cycles.

Kotlin

Google's preferred Android language with null safety, concise syntax, and full Java interoperability.

Jetpack Compose

Android's modern declarative UI toolkit that replaces XML layouts with composable, type-safe Kotlin code.

React Native

A JavaScript framework for building cross-platform iOS and Android apps from a single codebase.

Flutter

Google's cross-platform framework using Dart to ship near-native UIs to iOS and Android.

TypeScript

A typed superset of JavaScript that catches errors at compile time and scales React Native codebases reliably.

Firebase

Google's mobile backend platform with auth, real-time database, push notifications, and analytics out of the box.

Faqs

Common questions about iOS and Android app development

Native (Swift and Kotlin) wins when the app leans on device hardware, OS integration, or platform-specific interaction. Cross-platform (React Native or Flutter) wins when one product needs to reach both stores from a single codebase. We recommend based on the brief, not a house preference.

Yes. Store setup, review preparation, release builds, and the submission itself are part of the work, along with the metadata and assets each store requires.

Yes. We audit the current codebase and release setup first, then agree what is worth keeping before writing anything new.

Yes — strategy, UX flows, and interface design run ahead of engineering, and the same team carries the product through to release.

You do. The repository, the signing identities, and the store accounts stay yours throughout.

Explore other services

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Backend Development

APIs, data modeling, and self-hosted infrastructure for the backend behind a mobile app — no web frontend attached.

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Native App Development

Native iOS apps in Swift and SwiftUI, Android apps in Kotlin and Jetpack Compose — for products that depend on device hardware and deep OS integration.

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Flutter Development

Cross-platform mobile apps from a single Flutter codebase — native performance and a pixel-perfect UI across iOS and Android.

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React Native Development

Cross-platform mobile apps in the React and JavaScript ecosystem — real native UI, shared web logic, and over-the-air updates.

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Web Development

Custom, scalable websites and web apps engineered for performance, accessibility, and long-term maintainability.

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UX/UI Design

User flows, interaction models, and component systems designed around real tasks and accessibility standards.

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Product Design

Research, product strategy, UX flows, and interface design — the thinking that decides what the app should be before it is built.

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MVP Development

Scoping and building a minimum viable product for web, iOS, or Android to a fixed price and feature set — the platform-agnostic track, not tied to any one build method.

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AI-Assisted MVPs with Claude

AI-assisted MVPs built with Claude — from idea to working product in weeks, not months, without compromising on quality.

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iPadOS Development

Custom iPad apps that use the platform, not just run on it — desktop-class SwiftUI layouts, Apple Pencil, and Stage Manager multitasking.

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watchOS Development

Custom Apple Watch apps — glanceable SwiftUI, HealthKit and workout tracking, and complications on the always-on face.

Let’s talk

Book a call with our CEO

Portrait of Denys Havryliak, Founder & CEO of Applefy

Denys Havryliak

Founder & CEO

  • 10+ years in Software Engineering
  • Master’s in Cybersecurity
  • Deep, current knowledge of AI tooling

You’ll talk to the person who builds. Denys works hands-on across product, architecture, and delivery — and keeps a close watch on what today’s AI tooling can genuinely do in production, not just in a demo.