Android App Development Services
Android solutions for businesses that work beyond the screen: in the real world of consoles, terminals, devices, sensors, and people. We build companion apps for smart equipment, replace OEM interfaces with branded solutions, modernize legacy code, and support feature rollouts.
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Why Choose Our Android App Development Company?
Full Android ecosystem: mobile, tablet, kiosk, wearables
We cover the complete Android stack – mobile apps, embedded consoles, kiosk interfaces, and wearables. If you need a companion app and a terminal interface, you don’t have to hire two different agencies.
3.2-year average client partnerships
Apps need ongoing work after launch: release new features, fix edge cases, adapt the app for market requirements. We’re your long-term technical partner: we think ahead, take responsibility for your product, and support you after release.
Trusted by global innovators
STEPR chose us for their Android console software running on 27-inch fitness equipment screens. Milence works with us on payment terminal apps for their truck charging network across Europe. These are only two out of 30+ clients who needed teams who understand Android framework, custom launchers, and modern architecture.
Custom Android App Development Services We Provide
- Kiosk App Development
- Companion App for Hardware
- White-Label & OEM App Replacement
- Ongoing Feature Delivery
- Code Audit & Modernization
- Maintenance & Support
- Quality Assurance
design by Stormotion
Kiosk App Development
Custom Android apps for embedded tablets, payment terminals, charging stations, and fitness consoles run in kiosk mode with custom launchers. They handle secure payment flows, work offline, and firmware updates via OTA without Google Play.
Custom launchers and kiosk-mode interfaces
Payment flows and session management for terminals
Offline-first design for weak connectivity
Hardware vendor SDK integration
design by Stormotion
Companion App for Hardware
Mobile apps connect to smart equipment and IoT devices across fitness, healthcare, e-mobility, and consumer tech. Our team can implement custom protocols, handle real-time firmware sync, and debug connection problems that only appear on real devices. We collaborate with your hardware engineers to adjust app development with device capabilities. If you need MVP in 4.5 months, we can create it with a scalable architecture that won't need a full rewrite in the future.
Device control and diagnostics
Multi-device support with reconnection handling
Google Fit and wearable integrations
design by Stormotion
White-Label & OEM App Replacement
OEM apps lock you into vendor roadmaps and limit features that make hard to differentiate on the market. Custom replacements give you control over UX, features, update cycles, and analytics. The result: better user retention and engagement instead of generic solutions that weaken your brand. We also understand platform-specific needs: Android Material Design guidelines for consumer apps, accessibility standards for healthcare, hardware constraints (screen size, brightness, touch vs remote input) for kiosks, and clarity for public-facing or safety-critical interfaces.
Custom UI/UX instead of white-label templates
Full control over features and release schedule
Analytics and user data reports
Payment, backend, and third-party integrations
design by Stormotion
Ongoing Feature Delivery & Growth
If your backlogs grow faster than internal teams can handle, we can close capacity gaps. Our Android mobile app development services include feature development, performance optimization, tech debt reduction, and gradual architecture improvements while maintaining sprint velocity.
Feature development based on product metrics (retention, conversion)
Backend API development and third-party integrations
Code review, testing, and knowledge transfer with internal team
design by Stormotion
Code Audit & Modernization
Audit identifies technical debt and UX problems. Then, we create plans that fix issues without complete rewrites. The process: stabilize crashes and critical bugs first, then refactor gradually while apps stay in production.
Architecture audit with specific recommendations
Gradual refactoring (not full rewrite)
Migration to modern stack (Kotlin, Jetpack, updated libraries)
Performance fixes and crash rate reduction
design by Stormotion
Maintenance & Support
Ongoing maintenance covers bug fixes, OS updates, security patches, and performance monitoring for existing Android apps. We also take over apps built in-house or by other agencies. Our maintenance and support packages also include:
Crash monitoring
Performance issues fixes
Manual regression testing
Tech debt resolution
design by Stormotion
Quality Assurance
We test all applications on real devices across popular Android phones and tablets. For hardware-connected apps, we test on actual equipment that clients ship to us. QA process includes automated tests, performance checks, cross-device compatibility, and CI/CD pipelines to find problems before release or update.
Real-device testing on phones, tablets, and client hardware devices
Automated and manual testing across various device configurations
Performance testing
Our Latest Android App Development Solutions
Our Industries
Fitness
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IoT & Connectivity
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EV & EMSP
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Healthcare & Mental Health
Learn moreTechnology Stack
Frameworks
External Devices / IoT & Connectivity
Navigation
Graphics, Video & Audio
Backend & Data
Networking & APIs
State & Data Fetching
Payments & Monetization
Maps & Location
Forms & Validation
Internationalization
Analytics & Monitoring
Testing & QA
CI/CD & Delivery
AI / Machine Learning
AI Coding Assistants
Admin & CMS
Kotlin
TypeScript
React Native
React
Expo
Testimonials
Our Software Development Codex
1
Solutions matter more than code.
Your value isn't in lines of code but in problems solved. Don't just execute requirements. Understand business challenges, question assumptions, and deliver outcomes that actually matter.
2
Testing in real conditions isn't optional.
Code that works on a laptop can still crash when users need it. Protocol connection drops differently on terminals and on phones. Our Android app development company tests on real hardware, devices, and environments.
3
Slow is smooth. Smooth is fast.
Prioritize clean code, solid architecture and thoughtful decisions. True speed comes only after deep understanding of the problem the software should solve.
4
Expertise means knowing why things break.
Saying "BLE architecture" doesn't mean understanding how to debug a dropped connection at 30 meters. Real knowledge looks like: reading GATT specifications, reverse-engineering protocols when manufacturers don't document them, and knowing why reconnection logic fails in specific scenarios.
5
Keep one eye on today, one on tomorrow.
You should know about Kotlin, Jetpack, and React Native updates because old approaches create maintenance problems. But don’t chase every new trend that isn't production-ready. Apps need to work today and stay maintainable in the future.
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Book a call with our Co-Founder, Roman, to explore your Android project.
Android App Development Agency: Our Collaboration Models
Product-Based
Talent-Based
Client
Stormotion
Client Supervisor
SM Dev
SM Dev
Client
Stormotion Engineers + Your Team
Android developers join your existing team. They attend your meetings, use your tools, and work in your codebase.
This works when:
- Your backlog grows faster than internal capacity.
- You need senior React Native, Kotlin, or Java skills without going through recruitment.
- You need engineers with protocol integration knowledge.
Client
Stormotion
Product Owner
SM Dev
SM Dev
SM Dev
SM Dev
Standalone Stormotion Team
A separate squad handles your product roadmap. Typical size: frontend & backend developers, QA, and a PM.
When this fits:
- Custom Android app development to improve your existing platform.
- New kiosk or terminal software launch for hardware product lines.
- Domain expertise team instead of in-house mobile team.
Our Excellence Pillars
Contact usExpertise in protocol integration
We implement custom protocols, handle GATT specifications, reverse-engineer undocumented firmware communication, and debug connection problems that only appear on actual devices.
CI/CD & automated deployment
We use automated pipelines with EAS, Fastlane, and GitHub Actions. Every code change runs through automated tests, code quality checks, and device compatibility verification before app release.
3.7-year average engineer tenure
The same Android developers who started your project still work with you years later. They know your architecture, why certain technical decisions were made, and how everything connects. No constant handoffs to new contractors.
Android Mobile App Development Company – FAQ
How to choose an Android app development company?
You should choose a company with expertise in your industry and product. Building hardware products? Check for protocol integration and real-device testing. Need kiosk application? Look for Android app development companies with experience in custom launchers and OTA firmware updates.
Ask them what happens when requirements change mid-project or the team finds bugs in the app. The answer reveals how they actually work.
Is it worth hiring a mobile app development agency?
Worth it when you need expertise your team don’t have – kiosk app development, protocol integration or moving beyond OEM/white-label apps. Also, it makes sense when your backlog grows faster than internal capacity or you're launching a product without building a internal mobile team. The value of Android app development agency is experience with similar problems and technologies.
How long does it take to build an MVP for an Android app?
It can take 4-5 months to build an MVP for an Android app. Companion apps for single device go faster than kiosk apps with payment systems. Hardware adds time: protocol validation and integration and device testing. We build features that test your hypothesis first. Nice-to-haves wait after release.
How do you test Android apps that connect to custom hardware?
Clients ship us their devices: fitness machines, terminals, battery monitors, scooters, and so on. Then, we test Android apps on the actual hardware.
Protocols act differently on real devices and simulators. We test reconnection, data synchronization, low battery scenarios. Automated tests catch some issues, manual device testing catches the rest. Simulators maybe get 60% of hardware bugs.
How much does it cost to outsource mobile app development?
Freelancers charge $80-$150/hour but you need to coordinate everything yourself. So, add your time and resources to this number.
When you hire Android mobile app development company, you get a long-term technical partnership with co-creation and ownership mindset. For each project, we form a development unit with full-time developers plus part-time QA, designer, and PM. Monthly cost of the unit is about $10,000-$15,000.
How much does it cost to hire an app developer?
The average wage of the internal senior Android developers varies from $150,000 to $220,000 per year in the US or Europe. You get one person. When they're out sick or on vacation, work stops. If they quit, you start over.
Our development unit costs $10,000-$15,000 per month. That gets you developers, QA, a designer, and a PM who offer custom Android app development services. Someone's sick? Another engineer covers. Need backend help? Already included.
How much does it cost to develop an app for Android?
It’s hard to tell the exact cost, because the cost depends on the type and complexity of the Android app. But we can tell you the rough cost. We form a development unit with full-time developers plus part-time QA, designer, and PM. The monthly cost of the unit is $10,000-$15,000.
An MVP app might take 4 months to develop. So, its cost is from $40,000 to $60,000. A companion app for one BLE device might take 5 months and it can cost from $50,000 to $75,000. Kiosk software with payment integration and custom protocols can run about 8 months. So, it can cost $80,000-$120,000.
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Our manager will contact you as soon as possible. Have a nice day!
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