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MOBILE APP DEVELOPMENT • Web & App Development

Mobile Apps Your Users Will Actually Want to Use Every Day

People spend hours on their smartphones every single day. Your app has seconds to earn their attention and habitual use - or get uninstalled forever. At Nextstep Dev, we build mobile applications that win on both dimensions: technically robust enough to scale to millions of users, and delightful enough that people actually want to come back.

From B2C consumer apps to enterprise internal tools, from startup MVPs to full platform builds, we deliver mobile experiences on iOS and Android that drive real business outcomes.

Book My Free App Strategy Session See Packages & Pricing

Mobile App Development mobile app interface — iOS & Android Cross-Platform Build

Codebase for iOS & Android

2wk

Testable Builds Every Sprint

iOS+

Android - Both Platforms

8–12wk

Typical MVP Timeline

Single Codebase ↑ 60fps Native Feel iOS + Android Launch 100% Code Ownership 2-Week Demo Builds Crash-Free Rate ↑

iOS & Android Apps React Native & Flutter Consumer & Marketplace Apps Booking & On-Demand Apps Push & Offline Sync App Store Launch

What We Build

Mobile App Types We Develop

Consumer Apps (B2C)

Customer-facing apps for retail, food delivery, fitness, lifestyle, social networking, and entertainment - designed for mass adoption and retention.

B2C // HIGH RETENTION UX

Business & Enterprise Apps

Internal tools for field teams, management platforms, employee portals, and operations dashboards that streamline how your business works.

ENTERPRISE // OFFLINE-FIRST

E-Commerce Apps

Native mobile shopping experiences that complement or replace your web store - with push notifications, loyalty programs, and 1-click checkout.

COMMERCE // 1-CLICK CHECKOUT

On-Demand & Marketplace Apps

Uber-style service platforms, two-sided marketplaces, and gig economy apps with real-time matching, geolocation, and payment processing.

GEO // LIVE GPS & DISPATCH

Healthcare & Wellness Apps

Appointment booking, telehealth, fitness tracking, mental wellness, and patient management applications built to compliance standards.

HEALTH // HIPAA-READY SECURITY

Fintech & Payments Apps

Secure financial applications, digital wallets, investment platforms, and payment tools built with bank-level security and compliance in mind.

FINTECH // BIOMETRIC AUTH

Technology

Cross-Platform & Native Development

We develop in the technology that best matches your needs and budget:

Mobile App Development software engineering team collaborating on production architecture — **iOS & Android Engineering** Tested across 30+ real device configurations for 60fps animations, offline resilience, and App Store compliance.

React Native Flutter Swift (iOS Native) Kotlin (Android Native) Node.js Backend Firebase AWS Amplify Stripe / Braintree Google Maps API Push Notifications

Cross-Platform (React Native / Flutter)

One codebase for both iOS and Android. Faster build time, lower cost, ~95% feature parity with native. Our recommendation for most projects.

NATIVE // REACT NATIVE & FLUTTER

Native (Swift / Kotlin)

Maximum performance and platform integration. Recommended for highly complex apps, games, AR/VR features, or apps requiring deep device hardware access.

NATIVE // SWIFT & KOTLIN

Our Process

From App Idea to App Store

App Strategy Session

We define your target users, core features, monetization model, and success metrics. We challenge assumptions early - before they become expensive mistakes.
UX Wireframes

We map every user flow and screen in low-fidelity wireframes. We test the logic of the experience before adding visual design.
UI Design

Pixel-perfect, platform-appropriate UI design in Figma. Every interaction, transition, and state designed before development.
App Development Sprints

Agile development with 2-week sprints. You see a working, testable build at the end of every sprint.
QA & Beta Testing

Functional testing, performance testing, device testing across 30+ device configurations, and a real-user beta testing round.
App Store Submission

We handle Apple App Store and Google Play Store submissions - screenshots, descriptions, category optimization, and compliance review.
Post-Launch Growth Support

Push notification strategy, user analytics setup, rating optimization, and iterative improvement based on real user data.

Packages

Mobile App Development Packages

MVP

From $8,000

1 platform (iOS or Android)
Core feature set only
React Native build
Basic backend API
App Store submission
User authentication
Basic analytics

Build My MVP

Full App

Scale

Custom Quote

Enterprise-grade architecture
Advanced integrations & APIs
Real-time features (chat, maps)
Custom backend services
Performance & load testing
Dedicated engineering team
Long-term partnership

Request Custom Quote

FAQs

Frequently Asked Questions

How much does it cost to build a mobile app?

A well-built MVP typically starts at $8,000-$15,000. A full-featured consumer app ranges from $20,000-$80,000+ depending on complexity. We always provide a detailed estimate after a discovery session.

Should I build for iOS or Android first?

This depends on your target audience. If your users skew higher income or are in Western markets, iOS first is common. For global or emerging markets, Android has greater reach. We can advise based on your specific market.

How long does app development take?

A focused MVP is typically 8-12 weeks. A full-featured app is 16-24 weeks. We provide a detailed timeline broken down by sprint in your proposal.

Do you handle App Store submissions?

Yes. We prepare all App Store assets, write optimized store descriptions, and manage the submission and review process for both the Apple App Store and Google Play Store.

What happens after the app launches?

Launch is just the beginning. We offer post-launch retainer packages for bug fixes, feature updates, OS compatibility updates, and growth-focused iterations based on user analytics.