Custom iOS and Android Apps
Build mobile apps around your product, workflow, users, and business model instead of forcing your idea into a template.
Custom mobile app development company
Custom Mobile App Development
We design and build custom iOS, Android, React Native, and AI-powered mobile apps for businesses that need more than a generic app builder.
iOS + Android
Native and cross-platform delivery
US, UK, CA
Client-focused remote collaboration
MVP to Scale
Product strategy through support
Built for business outcomes
A mobile app partner for MVPs, operations, and scale
The best custom apps are not just screens. They connect product strategy, user experience, backend systems, analytics, security, and post-launch iteration into one reliable mobile product.
React Native and Native Builds
Use React Native for speed and shared code, or native Swift and Kotlin when performance or platform-specific behavior matters.
AI and Smart Features
Add AI assistants, recommendations, OCR, personalization, automation, chat, and data-driven workflows where they create real value.
Secure Architecture
Design authentication, roles, encrypted storage, API security, and privacy-aware data flows from the start.
Performance Engineering
Optimize launch speed, animation smoothness, offline behavior, API calls, and device-level reliability before launch.
Long-Term Support
Keep improving your app after release with analytics, fixes, new features, OS updates, and store compliance work.
Services and search intent
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Mobile demos
Use these demos now, swap in your own apps later
This section is designed to show mobile work immediately. The demo videos can be replaced later with your own portfolio, client apps, or product walkthroughs.
Startup MVP apps
Marketplace apps
Fintech and wallet apps
Healthcare and appointment apps
Food delivery and ecommerce apps
Real estate and booking apps
Internal business apps
AI-powered mobile products
Development process
From app idea to App Store launch
01
Discovery and Product Scope
We clarify the app idea, user journeys, technical risks, integrations, budget, and launch goals before development starts.
02
UX, UI, and Clickable Prototype
Your mobile experience is mapped into screens, flows, edge cases, and a working prototype so the product feels clear early.
03
App and Backend Development
We build the mobile app, APIs, admin panels, databases, notifications, payments, and third-party integrations in focused sprints.
04
QA, Launch, and Growth
The app is tested across devices, prepared for App Store and Google Play, then improved with analytics and post-launch support.
Technology stack
The right stack for your custom app
We choose technology around the product, not the other way around. That may mean React Native for fast multi-platform delivery, native modules for performance, or a dedicated backend for complex business logic.
React NativeSwiftSwiftUIKotlinJetpack ComposeNode.jsNext.jsFirebasePostgreSQLMongoDBStripeGoogle Maps
Questions clients ask
Custom mobile app development FAQs
What does a custom mobile app development company do?
A custom mobile app development company plans, designs, builds, tests, launches, and maintains mobile apps created around a specific business model, user workflow, and technical requirement.
How much does custom mobile app development cost?
Cost depends on features, platforms, design depth, backend complexity, integrations, and compliance needs. A lean MVP is usually much smaller than a marketplace, fintech, healthcare, or AI-powered product.
Can you build both iOS and Android apps?
Yes. We build iOS and Android apps using React Native for cross-platform delivery, and Swift or Kotlin when a native build is the better choice.
Do you work with clients in the US, UK, and Canada?
Yes. Dev Entity works remotely with international clients and can support discovery, sprint planning, demos, QA, launch, and maintenance across time zones.
Ready to build a custom mobile app?
Share your idea, current app, or product brief. We will help you turn it into a clear mobile app scope with realistic next steps.