Mobile App Development Company Building Apps That Users Actually Keep
Most mobile apps are deleted within 30 days of install. We build mobile applications that solve real problems, feel fast on every device, and are engineered to retain users — not just acquire them. iOS and Android from one codebase, AI integration as standard.
iOS and Android From One Codebase — 40 to 60% Less Cost Than Separate Native Builds
React Native allows us to build and maintain one codebase that runs natively on iOS and Android. Same performance. Same native UI components. Significantly less cost and faster time to market than separate Swift and Kotlin builds.
Why Most Mobile Apps Fail Within 30 Days of Install
Most mobile apps fail for three reasons. First, they solve a problem the user does not have urgently enough to open an app for. Second, they are slow on the devices real users own — not the new flagship tested in the demo. Third, they have no onboarding, poor navigation, and nothing that builds a habit. We address all three in the strategy session before a line of code is written. We also recommend honestly when a mobile app is not the right solution.
| Factor | Generic App Development | Our Mobile App Approach |
|---|---|---|
| Platform | iOS or Android — separate cost | iOS and Android from one React Native codebase |
| Performance | Untested on lower-end devices | Profiled on real user device range |
| AI Integration | Not available | Voice AI, LLMs, on-device ML as standard |
| Submission | Billed separately | App Store and Google Play included |
| Architecture | Started without documentation | Written technical spec approved first |
| Post-launch | Handed off | 30-day monitoring, crash analytics, support |
Our Mobile App Development Services
From consumer apps to enterprise mobile platforms. Cross-platform efficiency with native performance and AI capabilities most mobile agencies cannot offer.
React Native and Expo Apps
Cross-platform iOS and Android development from one TypeScript codebase. React Native New Architecture (Fabric + Hermes) for near-native performance. 40 to 60% lower cost than separate native builds, significantly faster time to market.
Native iOS Development
Swift and SwiftUI for applications where iOS-specific features, performance ceilings, or Apple ecosystem integration require a fully native approach. We recommend native when the performance or feature case is there — not by default.
Android Native Development
Kotlin and Jetpack Compose for Android applications that need full access to the Android hardware layer, specific device manufacturer APIs, or custom hardware integration.
AI Mobile App Integration
Voice AI agents with streaming responses, LLM-powered chat and document processing, on-device ML with TensorFlow Lite or Core ML, and AI-assisted UX personalization. One of our strongest differentiators.
App Store and Google Play Submission
Store listings, screenshots, App Store Optimization (ASO) keyword research, privacy nutrition labels, and submission handling. We manage the review process and handle any rejections — included on every project.
Mobile App Rescue and Takeover
Existing mobile apps that are slow, unstable, crashing, or built on outdated architecture. Code audit, performance profiling, and a recovery plan. We stabilize before extending.
Real Results from Real Client Projects
From no visibility to #1 rankings across the entire service area
Custom build, clean semantic architecture, schema across 10+ location pages, n8n automation for monitoring. Same development discipline applied to every engagement we take on.
Google Business Profile, Mar–Aug 2026
Our Mobile App Development Process
From free strategy call to staged App Store rollout. Every step documented, every build tested on real devices.
Free App Strategy Call
Platform recommendation, MVP scope, monetization strategy, and backend architecture. Written recommendation whether you hire us or not.
Technical Architecture Design
Full spec — platform, navigation, state management, backend, auth, push notifications, analytics, and monetization.
Mobile-First UX and Design
Wireframes then high-fidelity screens for iOS and Android platform conventions. User testing on wireframes before development.
Sprint Development
Two-week sprints. TestFlight (iOS) and Google Play Internal Testing (Android) builds every two weeks. You test on real devices.
QA on Real Devices
Tested on the iPhone and Android models your users actually own. Performance profiling on lower-end devices. Accessibility testing.
App Store Submission
Store listings, screenshots, ASO, privacy labels, and submission. We manage the review process and handle rejections.
Launch and Monitoring
Staged rollout, crash monitoring, analytics review, and 30-day post-launch support.
Why Choose Hyxil for Mobile App Development
React Native for 95% of projects. Swift and Kotlin when the technical case requires it. Right tool, not one-size-fits-all.
Voice AI, streaming LLM chat, on-device ML, and AI-assisted UX. Most mobile agencies cannot offer this at all.
Not billed separately. Listing creation, ASO, privacy labels, and submission handling on every project.
No junior teams after the contract is signed. The engineers who scope the project are the ones who build it.
No hourly billing on a project that runs long. You know the cost before work starts.
Automated notifications, triggers, and data sync that most mobile agencies cannot offer.
Mobile apps built for retention, performance, and AI — not just to be on the App Store
React Native New Architecture. Fixed price. App Store submission included. AI voice and LLM integration from day one.
Ready to build a mobile app that users actually keep?
Book a free strategy call. We discuss your app concept, recommend the right platform and architecture, and produce a written technical recommendation — whether you hire us or not.
Services Delivered Across These Industries
Consumer apps and marketplaces · Enterprise mobile tools · Field service applications · Healthcare and medical · Ecommerce and retail · Real estate · Logistics and delivery · Fintech and payments · Education and eLearning · Fitness and wellness · B2B SaaS mobile
Frequently Asked Questions
How much does mobile app development cost?+
How long does a mobile app take to build?+
Do you build for iOS and Android?+
Do you handle App Store and Google Play submission?+
Can you integrate AI into our mobile app?+
Can you take over an existing mobile app?+
Ready to Build a Mobile App That Users Actually Keep?
Book a free strategy call. We discuss your app concept, recommend the right platform and architecture, and produce a written recommendation — whether you hire us or not.
Written strategy recommendation · Fixed price after discovery · No commitment