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App Development Services

Native & Cross-Platform App Development

We design and build iOS, Android, and cross-platform apps that feel fast, native, and intuitive — from MVP to App Store launch and beyond.

Overview

Whether you need a single codebase for both platforms or fully native performance, our mobile team handles design, development, testing, and store deployment end-to-end.

What's Included

Everything you need for a complete, production-ready App Development engagement.

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Native iOS Development

Swift-based apps built for performance, with full access to native device capabilities.

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Native Android Development

Kotlin-based apps optimized for the Android ecosystem and device fragmentation.

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Cross-Platform Builds

Flutter & React Native apps that ship to both stores from a single codebase, faster and cheaper.

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Push Notifications & Analytics

Engagement tooling, crash reporting, and in-app analytics wired in from launch.

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Backend & API Integration

Secure REST/GraphQL back-ends, authentication, and real-time data sync.

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App Store Deployment

We handle store listings, compliance review, and submission for both App Store & Play Store.

Technologies We Use

A modern, battle-tested stack chosen for reliability and long-term maintainability.

Flutter React Native Swift & SwiftUI Kotlin & Jetpack Compose Firebase Node.js APIs App Store Connect Google Play Console

Why Choose HashtoColon

Single codebase options that cut development cost without sacrificing quality.

Native performance where it matters most — animations, camera, sensors.

Full app store submission and compliance handled for you.

Post-launch updates, OS-version support, and crash monitoring included.

Frequently Asked Questions

Should I build native or cross-platform?

It depends on your performance needs and budget — we'll recommend the right approach after a quick discovery call.

How much does an app cost to build?

Costs vary by complexity; a focused MVP typically starts in a lower range, while feature-rich apps scale up from there.

Do you handle App Store and Play Store submission?

Yes, we manage the entire submission, review, and compliance process for both platforms.

Can you upgrade or maintain an existing app?

Yes — we regularly take over legacy codebases for redesigns, new features, and OS-compatibility updates.

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Ready to start your App Development project?

Tell us about your goals — our team will get back to you within 24 hours with a clear plan and timeline.