mobile

Mobile App Development Services

iOS and Android app development by EltexSoft. Native Swift, Kotlin, React Native. Free Stuff Finder (2M+), Unfold (WWDC), MOTTIV. $50-99/hr.

Talk to us

EltexSoft is a mobile app development company with senior iOS and Android engineers available at $50-99/hr. We build native apps (Swift, Kotlin) and cross-platform (React Native). Mobile clients include Free Stuff Finder (2M+ installs, #2 coupon app in the US), Unfold (featured at Apple WWDC), MOTTIV (endurance training for 10,000+ athletes), and WinitClinic (functional medicine marketplace with iOS and Android).

What we ship

The Work

Apps That Reached #2 in the App Store

Free Stuff Finder reached #2 in its App Store category. Over 2 million installs across iOS and Android. The app delivers curated deals, coupons, and freebies to bargain-hunters across the United States. WordPress serves as the headless CMS backend. Realm handles local data persistence. Push notifications drive daily engagement.

Unfold was featured by Apple at WWDC. A creative toolkit for social media content creation. Our iOS team built core features that Apple highlighted on stage.

MOTTIV serves 10,000+ athletes with personalized endurance training plans. Triathlon, marathon, running, cycling. Offline workout mode for training without internet. Built from scratch over 2 years.

These are not demo apps. They are production mobile applications downloaded by millions of users, featured by Apple, and maintained for years. That is what our mobile development team builds.

EltexSoft is a mobile app development company. 35-50 senior engineers. Headquartered in Lisbon, Portugal. Engineering team in Ukraine. Founded in 2015.

What We Build

Native iOS

Swift and SwiftUI for new projects. UIKit when inheriting existing codebases. Our iOS developers build with HealthKit (MOTTIV fitness tracking), CoreData and Realm (offline storage for Free Stuff Finder), CoreLocation (delivery tracking for Ripe), and the full Apple ecosystem of frameworks.

We optimize for the App Store: app thinning, proper screenshot sets, metadata that converts, and review response management. Free Stuff Finder’s App Store presence was a deliberate product of optimization, not luck.

Native Android

Kotlin and Jetpack Compose for new projects. Material Design 3 for consistent UI. Google Play distribution with proper feature flagging and staged rollouts. Device fragmentation testing across the Android ecosystem.

React Native Cross-Platform

One codebase, two platforms. React Native makes sense when the app is primarily data-driven UI (lists, forms, dashboards, messaging) and you want to ship to both platforms with a single team. We built React Native mobile apps for a sports operations platform used by 100% of NFL teams.

When React Native does not fit — platform-specific camera work, heavy animations, health sensor integration — we build native.

Backend and API

Every mobile app needs a backend. Authentication, data storage, push notifications, real-time messaging, payment processing, and CDN-backed media delivery. We build mobile backends in Laravel, Django, and Node.js. The backend team sits next to the mobile team. One codebase review process. One deployment pipeline. One accountability.

The Mobile Stack

iOS: Swift 5.x, SwiftUI, UIKit, Combine, CoreData, Realm, HealthKit, CoreLocation, SPM. Android: Kotlin, Jetpack Compose, Material Design 3, Room, Retrofit, Coroutines, Hilt. Cross-platform: React Native, Expo, TypeScript. Backend: Laravel, Django, Node.js (Express/Fastify). Push: Firebase Cloud Messaging, APNs. Analytics: Firebase, Mixpanel, custom event tracking. CI/CD: Fastlane, GitHub Actions, App Store Connect API, Google Play Developer API.

What It Costs

Senior mobile developer (dedicated): $50-99/hr.

iOS app MVP: $40K-$100K, 3-5 months. Android app MVP: $40K-$100K, 3-5 months. React Native (both platforms): $35K-$90K, 3-5 months. Mobile + backend + admin: $80K-$200K, 5-10 months.

Compare to US mobile agencies at $150-$300/hr. Our rates with senior-only engineers deliver 40-60% lower total cost.

Who We Are

EltexSoft is a boutique mobile app development company. 35-50 senior engineers. Headquartered in Lisbon, Portugal. Engineering team in Ukraine. Founded in 2015.

Mobile clients: Free Stuff Finder (2M+ installs), MOTTIV (10,000+ athletes), Unfold (Apple WWDC), WinitClinic (functional medicine), and a sports operations platform (100% NFL teams). We also build web applications, AI products, and custom software.

5.0 Clutch rating across 30+ verified reviews. 200+ five-star Upwork reviews. Top Rated Plus and Expert-Vetted. Average client engagement: 3+ years.

Talk to us →

FAQ

Common questions

What mobile apps has EltexSoft built?
Free Stuff Finder (2M+ installs, #2 coupon app in the US), Unfold (creative toolkit featured at Apple WWDC), MOTTIV (endurance training for 10,000+ athletes), WinitClinic (functional medicine marketplace, iOS and Android), and a US sports operations platform (100% of NFL teams, React Native). We have shipped production mobile apps for 11 years.
Native or cross-platform?
It depends on the project. Native (Swift for iOS, Kotlin for Android) when you need platform-specific performance, camera/GPS/health integrations, or the best possible UX. React Native when you want one codebase for both platforms and your app is primarily data-driven UI. We build both and recommend honestly.
How much does mobile app development cost?
An iOS or Android app MVP costs $40K-$100K (3-5 months). A cross-platform React Native app costs $35K-$90K (3-5 months). A full mobile + backend + admin system costs $80K-$200K (5-10 months). EltexSoft charges $50-99/hr for senior mobile engineers.
Do you build the backend too?
Yes. Every mobile app needs a backend API, push notification infrastructure, authentication, and often real-time messaging. We build backends in Laravel, Django, and Node.js. One team, one accountability.
How long does mobile app development take?
A single-platform MVP takes 3-5 months. Both iOS and Android natively takes 5-8 months (parallel development). React Native for both platforms takes 3-5 months. MOTTIV was built over 2 years of continuous development. Free Stuff Finder has been maintained for 5+ years.
Can you take over an existing mobile app?
Yes. We regularly inherit mobile codebases. We audit the architecture, assess technical debt, fix critical issues, then either improve incrementally or recommend a rebuild. We have taken over apps built on Objective-C, Java (Android), and older React Native versions.
Who owns the app and source code?
You do. Full work-for-hire assignment. Source code, designs, App Store/Play Store accounts, and all assets belong to you from day one.

Tell us what you're building.

One business day reply. From an engineer, not a sales rep.

Talk to us