Mobile Product Engineering

Build Reliable Flutter and Mobile Apps

Human-Led. AI-Accelerated. Production-Ready.

We build Flutter, iOS and Android apps for startups, businesses and connected products. Our engineers use AI-assisted workflows to reduce repetitive work, with human review of architecture, code and releases.

Discuss Your App(Start with one week free trial)
See Our Work
50+
Apps Delivered
100%
Job Success
4.9★
Clutch Rating
100%
Client-Owned Code
Why Nautilus

Why choose Nautilus Techlabs?

Nautilus Techlabs turns your product goals into mobile apps, websites and AI products built for real users. From the first technical decision to launch, we bring clear direction, hands-on engineering and accountability to your project.

You work with a team that explains the trade-offs, shares progress through working builds and makes quality part of every milestone. Your code stays yours, with the documentation and handover you need to keep moving forward.

Your vision, backed by engineering you can build on.

Explore Our Work

“Our communication was online, direct, and fast.”

Andi GuntertSwiss Animal Rescue (STMZ)

Clear Scope & Milestones

Agree on priorities, deliverables and acceptance criteria so you know what we’re building and how progress is measured.

Direct Communication

Review working builds, discuss trade-offs and keep priorities aligned throughout development.

AI-Assisted, Engineer-Reviewed

We use AI to support implementation, testing and documentation, with engineers responsible for technical decisions and review.

Quality Built Into Delivery

Code reviews, automated checks and testing of important user journeys support each release.

Your Code. Your Ownership.

Receive the project source code, technical assets and documentation through an agreed handover.

Built for Future Changes

Clear structure and documented decisions help your team maintain and extend the product after launch.

What We Deliver

Engineering services for
every stage of your product.

Build a new app, launch a website, add AI capabilities or improve the software you already rely on. Choose the service that fits your next step, with a clear scope, practical deliverables and support through release.

Flagship Mobile & Web

Flutter App Development

Build iOS, Android, and web applications from a shared Flutter codebase with structured architecture, responsive interfaces, and production deployment support.

What we deliver
  • iOS, Android & Flutter Web from a single codebase
  • Offline-first local SQLite/Hive data sync
  • Native device bridges (BLE, GPS, Biometrics)
  • App Store & Google Play launch compliance
FlutterDartiOSAndroidSupabaseFirebase
Explore Service
AI & Intelligence

AI Product Development

Integrate AI capabilities that improve how users interact with your product, search for information, automate workflows, or make decisions.

What we deliver
  • AI assistants & real-time chat interfaces
  • OpenAI & Google Gemini API integrations
  • Multimodal prompt engineering & structured data
  • Document processing & content generation workflows
OpenAIGoogle Gemini
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Idea to Launch

Rapid MVP Development

Build focused MVPs for startups and product teams that need to validate an idea, demonstrate a product, or reach their first users without creating a disposable codebase.

What we deliver
  • Product requirements & technical scoping
  • Core functionality & UI/UX implementation
  • Authentication, database & cloud setup
  • Production testing & analytics launch
FlutterSupabaseFirebasePostgreSQLCI/CD
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Native to Flutter

Migrate Native Apps to Flutter

Migrate native iOS and Android apps to Flutter with a plan for existing users, saved data, feature parity and a tested rollout.

What we deliver
  • Native app audit & migration roadmap
  • Flutter screens & native SDK integrations
  • Account, subscription & saved-data continuity checks
  • Upgrade testing & staged release planning
FlutterDartSwiftKotliniOSAndroid
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Cloud & Scale

Backend & Cloud Engineering

Build secure, scalable backend systems and robust APIs using modern cloud infrastructure and managed databases.

What we deliver
  • REST APIs & real-time data pipelines
  • Role-based access control (RBAC) & security
  • Serverless cloud functions & automation
  • PostgreSQL database optimization
SupabaseFirebaseNode.jsPostgreSQLTypeScript
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Design to Code

UI/UX to Production

Transform Figma designs and user flows into responsive, reusable, and production-ready interfaces validated on real devices.

What we deliver
  • Figma design system implementation
  • Reusable component libraries & design tokens
  • Interactive prototypes & user flow validation
  • Mobile & web responsive validation
FigmaDesign TokensResponsive UIFlutter Web
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Codebase Health

Codebase Modernization & App Audits

Modernize existing applications, reduce technical debt, and identify architectural, performance, and security issues before they become expensive to fix.

What we deliver
  • Flutter version & dependency upgrades
  • State management refactoring (Riverpod/BLoC)
  • Security review & technical debt reduction
  • Automated test suites & crash monitoring
FlutterSentryFirebase CrashlyticsAutomated Testing
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Websites & Publishing

Web Design & Development

Design and build responsive websites with clear content, practical publishing tools and business integrations, from the initial brief through testing and launch.

What we deliver
  • Website structure & responsive design
  • CMS setup & reusable page templates
  • Forms, booking & business integrations
  • Technical SEO, testing & launch support
FigmaAstroTypeScriptHTML & CSSCMSREST APIs
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Delivery Process

How We Turn Concepts Into Production Software

A disciplined 4-stage delivery pipeline combining senior engineering rigor with AI-accelerated development speed.

01
Understand → Define

Discovery & Architecture

We establish product requirements, user flows, database schemas, and API constraints with AI-assisted requirement analysis to map out a clear technical foundation.

Key Output:
  • ✓Product Requirements
  • ✓Database Schema
  • ✓Architecture Blueprint
02
Design → Validate

Prototype & Validate

Before heavy implementation, we craft interactive Figma prototypes and validate core user flows on real devices to eliminate technical and UX risks early.

Key Output:
  • ✓Interactive Prototypes
  • ✓Real-Device Validation
  • ✓Design Tokens System
03
Build → Test

Accelerated Engineering

Senior engineers combine structured Flutter architecture with AI-accelerated workflows, automated test generation, continuous integration, and frequent test builds.

Key Output:
  • ✓AI-Accelerated Coding
  • ✓Automated Test Suites
  • ✓Continuous Demo Builds
04
Deploy → Transfer

Launch & Handover

We manage App Store & Google Play compliance, configure production cloud environments, set up crash reporting, and transfer 100% of source code and assets.

Key Output:
  • ✓Store Release Compliance
  • ✓Crash Monitoring & SLA
  • ✓100% Code Handover
Plan Your Sprint With Us
Production Portfolio

Engineered for Performance & Scale

Explore our catalog of production-grade mobile applications, IoT telemetry engines, AI systems, and cloud portals shipped worldwide.

AI Buddy

Production
iOS & Android (Flutter)
FlutterOpenAI APIRevenueCat+1
AI & Intelligence
AI & Lifestyle

A Flutter-built AI companion for generating art and chatting with unique AI personas using polished mobile interfaces.

See How It's Built

Axxo

Production
iOS & Android (Flutter)
FlutterBLE 5.0Reactive Canvas+1
IoT & Hardware
Motorsports IoT

Motorsports precision tool for monitoring kart weight distribution via BLE scales with real-time data streaming.

See How It's Built

Lux Pass Epos

Production
Cross-Platform (Flutter)
FlutterFirebaseStripe Terminal+1
Mobile System
Retail & Salon POS

A feature-rich salon management tool for scheduling, multicenter transactions, and business growth analytics.

See How It's Built

STMZ

Production
iOS & Android (Flutter)
FlutterMapbox SDKi18n+1
Mobile System
Public Utility & GIS

Multilingual Swiss animal rescue app featuring interactive maps, real-time alerts, and a veterinary hospital locator.

See How It's Built

Brand Studio

Production
iOS & Android (Flutter)
FlutterAI GraphicsSocial APIs+1
AI & Intelligence
Marketing Automation

Empowers businesses with AI tools for festival marketing, creating branded social media content from a curated library.

See How It's Built

PopOff

Production
iOS & Android (Flutter)
FlutterWebSocketsPush Alerts+1
Mobile System
Social & Dating

PopOff is a social dating app for swiping through potential matches using photos and short profiles.

See How It's Built

Speak Notes

Production
iOS & Android (Flutter)
FlutterSpeech-to-TextAudio Processing+1
AI & Intelligence
Speech & AI

A versatile Speech-to-Text application supporting live recording and audio file uploads for instant conversion.

See How It's Built

SCS Pooled Trust

Production
iOS & Android (Flutter)
FlutterFintechCheck Deposit+1
Mobile System
Fintech & Banking

The ultimate mobile trust app for managing accounts, viewing transactions, and requesting disbursements on the go.

See How It's Built

All Social

Production
Web & Mobile
FlutterReactAI Copywriting+1
AI & Intelligence
AI Content Engine

An AI-driven marketing platform providing cost-effective, ready-made content for businesses worldwide.

See How It's Built

Hue Pro DJ

Production
iOS & Android (Flutter)
FlutterPhilips Hue APIAudio FFT+1
IoT & Hardware
Smart Lighting & Audio

Elevate your DJ sets with custom-crafted lighting effects and strobes that sync perfectly with your music's beat.

See How It's Built

Unit Converter

Production
iOS & Android (Flutter)
FlutterOffline FirstClean Architecture
Mobile System
Utility & Tools

A fast and reliable Flutter app for offline unit conversions across multiple measurement categories with a clean UI.

See How It's Built

Todo App

Production
Cross-Platform
FlutterHive DBState Management
Mobile System
Productivity

A powerful productivity tool to manage daily tasks and projects, helping you stay organized and achieve your goals.

See How It's Built

Zidd Fitness

Production
iOS & Android
FlutterCommunityActivity Tracking
Mobile System
Health & Fitness

A community-driven fitness app to find workout routines, track daily activity, and share gym progress with others.

See How It's Built

Tethys e-ID

Production
iOS & Android
FlutterCryptographyBiometrics
Mobile System
Digital Identity

A secure digital identity solution providing safe authentication on mobile devices, replacing paper and plastic IDs.

See How It's Built

Tethys e-ID Scanner

Production
iOS & Android
FlutterBarcode/QR ScannerSecure Auth
IoT & Hardware
Identity Verification

The companion scanner app for Tethys e-ID, enabling eco-friendly and secure digital identification verification.

See How It's Built

NT Music App

Production
Android & iOS
FlutterAudio PlayerLock Screen Controls
Mobile System
Audio & Entertainment

A seamless local music player that organizes tracks and provides easy control from the notification and lock screens.

See How It's Built

Witty Kids

Production
iOS & Android
FlutterGamificationInteractive Canvas
Mobile System
EdTech & Kids

An engaging children's app with interactive learning and fun activities designed to stimulate young minds safely.

See How It's Built

Shuk Local Deals

Production
iOS & Android
FlutterGeolocationStore Listings
Mobile System
Food & Dining

Discover local dining options and exclusive deals. Check menus, prices, and store offers to make informed dining choices.

See How It's Built

Squadr_Game Together

Production
iOS & Android
FlutterPush AlertsGaming Hub
Mobile System
Gaming & Social

Coordinates gaming sessions by alerting friends when you're ready to play or when buddies come online for a match.

See How It's Built

Donation & Sponsorship

Production
Cross-Platform
FlutterPayment GatewaysCrowdfunding
Mobile System
Non-Profit & Philanthropy

Connects donors with needy causes, allowing organizations to manage requests and provide project feedback easily.

See How It's Built

Charge Me

Production
iOS & Android
FlutterSocial ShareQuotes Engine
Mobile System
Lifestyle & Motivation

Stay motivated with a constant stream of encouragement and share daily inspiration easily on social platforms.

See How It's Built

Fahrlehrer.ch

Production
iOS & Android
FlutterSocial IntegrationSwiss App
Mobile System
EdTech & Driving

A unique app for driving schools to congratulate students with custom photos and social media sharing features.

See How It's Built

Quiffers Deals

Production
iOS & Android
FlutterE-CommerceDeals Map
Mobile System
E-Commerce & Deals

A commercial platform connecting buyers with real-time seller deals, product info, and physical shop locations.

See How It's Built

Secure Web App Portal

Production
Web Portal
ReactAstroWeb Security
Cloud & Web
Enterprise Web

A secure demo application designed to build user trust by keeping data interactions local and unified within the app.

See How It's Built

Lee Distributors App

Production
Android & iOS
FlutterInventory TrackingLogistics
Mobile System
Logistics & Warehouse

An inventory tracking tool for warehouse shifts, monitoring product locations and access history for logistics teams.

See How It's Built

Lee Distributors Web Admin

Production
Web Portal
Web PortalData TablesRBAC Auth
Cloud & Web
Admin Dashboard

A comprehensive web dashboard for managing warehouse logistics, inventory data, and staff performance metrics.

See How It's Built

PM Vrundavan

Production
iOS & Android
FlutterReal EstateImage Gallery
Mobile System
Real Estate

A dedicated real estate app showcasing premium properties and project details for potential homebuyers.

See How It's Built

Link by Everlink

Production
iOS & Android
FlutterAudio UltrasonicNetworking
IoT & Hardware
Sound Protocols & IoT

Instant networking via sound-based protocols, allowing secure professional verification without QR codes.

See How It's Built

Property Circle

Production
iOS & Android (Flutter)
FlutterWordPress REST APIProperty Search
Mobile System
Real Estate Portal

Custom real estate platform synced with WordPress, offering tailored discovery and consistent property listings.

See How It's Built

Better Match

Production
iOS & Android
FlutterChat WebSocketsMatch Engine
Mobile System
Matchmaking & Dating

A premium dating app designed for meaningful links through smart filters, secure chat, and advanced matchmaking.

See How It's Built

FitAim Companion

Production
iOS & Android
FlutterHealthKitNutrition Planner
Mobile System
Fitness & Nutrition

Comprehensive fitness companion for tracking workouts and customizing meal plans with progress visualization.

See How It's Built
Production Deployed

System Architecture & Capabilities

Verified Technology Stack

Scope a Similar Solution
Partnership Models

Flexible Engagement Tailored to Your Stage

Whether you are bootstrapping a new MVP or scaling an existing production team, we offer flexible contracts with zero hidden overheads.

Defined Deliverables

Fixed-Scope Product Development

For companies with a clearly defined product, feature set, or MVP roadmap. Clear milestones, transparent delivery, and predictable planning.

  • ✓Defined scope & technical architecture blueprint
  • ✓Transparent milestone-based stage delivery
  • ✓Includes UI/UX, Flutter engineering & QA testing
  • ✓100% legal code handover & deployment support
Get a Fixed-Scope Estimate →
Most Popular for Scale

AI-Augmented Dedicated Engineering

Add senior engineering capacity to your team equipped with modern AI-assisted development workflows.

  • ✓Dedicated senior Flutter / full-stack capacity
  • ✓AI-accelerated coding, test generation & debugging
  • ✓Direct Slack / Discord / Daily Standup integration
  • ✓Real-time code commits to your private GitHub repos
Hire a Dedicated Engineer →
End-to-End Squad

Full Product Team

One team covering the entire product journey from architecture and UX through engineering, AI integration, testing, and launch.

  • ✓Product discovery, architecture & UX design
  • ✓Flutter frontend, backend & AI model integration
  • ✓Automated QA, security profiling & store compliance
  • ✓Production monitoring, documentation & handover
Assemble Your Product Squad →

Not sure which model is right for your product?

Schedule a technical discovery session. We'll assess your project requirements, architecture path, and identify where AI creates development leverage.

Book Free Discovery Call
Technology Ecosystem

Enterprise-Grade Tech Stack

We choose technology based on the product — not because it is fashionable. Every tool in our stack is proven for production speed, security, and scalability.

Mobile & Web Engineering

Flutter
FlutterCross-Platform UI
Dart
DartType-Safe Language
iOS (Swift)
iOS (Swift)Native Apple Platform
Android (Kotlin)
Android (Kotlin)Native Android Platform
React
ReactModern Web Frontends
TypeScript
TypeScriptEnterprise Scalability

AI & Intelligence

Claude
ClaudeAnthropic AI & Tooling
Codex / ChatGPT
Codex / ChatGPTLLM APIs & Assistants
Google Gemini
Google GeminiMultimodal AI Pipelines
GitHub Copilot
GitHub CopilotAI-Assisted Pair Engineering

Backend & Cloud Infrastructure

Supabase
SupabasePostgreSQL & Realtime Sync
Firebase
FirebaseAuth, Firestore & Messaging
REST APIs
REST APIsSecure API Integrations
GitHub & CI/CD
GitHub & CI/CDAutomated Build Pipelines
Client Testimonials

Trusted by Ambitious Teams Worldwide

★★★★★4.9 / 5Verified Client Reviews on Clutch.co ↗
★★★★★
✓ Verified Client

"I had the great pleasure of working with Bipin and his team on our mobile app development using Flutter and Firebase. Bipin impressed me from the start with his professionalism and unwavering commitment to our project. His effective communication and consistent delivery of high-quality code made collaboration seamless."

N
NathanFlutter & Firebase Mobile App
★★★★★
✓ Verified Client

"Bipin was amazing to work with. A few requirements changed over the course of the project and Bipin made the required changes super professionally. The app is performant and the codebase is clean and well-documented."

D
DanielCross-Platform Ecosystem
★★★★★
✓ Verified Client

"I would highly recommend Bipin! Thanks for the job delivered! Their expertise was impressive, proactive communication made development smooth, and the deliverables were completed to exact specifications."

G
George EconomidesCross-Platform App Development
★★★★★
✓ Verified Client

"Our communication was online, direct, and fast. There was hardly any need to wait for relevant feedback. Delivered as expected with great quality and native speed."

A
Andi GuntertSwiss Animal Rescue (STMZ)
★★★★★
✓ Verified Client

"Bipin is highly professional, delivered solid code on time, and was a pleasure to work with. He also made some great implementation suggestions that we adopted. I will surely work with Bipin in the future!"

N
Nathan LewisFlutter Architecture
★★★★★
✓ Verified Client

"Bipin was able to successfully upgrade an old Bluetooth protocol in a pre-existing app to a modern BLE protocol with great efficacy. Professional, knowledgeable, and delivered on time."

M
Matthew PeleshokAxxo BLE Telemetry App
Clear Answers

Frequently Asked Questions

Everything you need to know about our senior engineering standards, AI-accelerated workflows, and client code ownership.

How does AI accelerate app development?

AI reduces repetitive engineering work and accelerates coding, testing, documentation, debugging, and prototyping. Our senior engineers remain responsible for architecture, technical decisions, security, and production quality.

Will AI-generated code be maintainable?

AI-generated code is thoroughly reviewed, tested, and integrated into the application's structured architecture by our engineers. Generated output is treated as a development accelerator—never as automatically production-ready code.

Can you integrate ChatGPT or Gemini into an existing application?

Yes. We can integrate AI assistants, structured LLM workflows, document processing, multimodal content generation, and smart recommendation features into existing mobile and web applications.

Can you modernize an existing Flutter application?

Yes. We can review existing architecture, identify technical debt, modernize dependencies, improve state management (Riverpod/BLoC), refactor problematic code, and introduce automated testing and CI/CD pipelines.

Do you build only Flutter applications?

Flutter is our core cross-platform specialty, but we also build native iOS (Swift), Android (Kotlin), and modern web platforms (React / TypeScript) when the product architecture calls for them.

Who owns the source code and intellectual property?

You own 100% of the intellectual property. Our standard approach is to provide clients with complete ownership and direct access to project repositories, documentation, and deliverables with zero vendor lock-in.

Can you work with our existing development team?

Yes. We can operate as an AI-augmented extension of your existing product or engineering team, providing senior Flutter development, architecture reviews, AI integration, or codebase modernization support.

How quickly can you build an MVP?

Timeline depends on product scope, integrations, design readiness, and technical complexity. After initial discovery, we define a focused, realistic delivery roadmap rather than applying an artificial timeline to every product.

Get In Touch

Let's Build & Ship Your Next Product

Have an idea, an existing application, or a product that needs to move faster? Tell us what you're building. We'll help define the technical path and identify where AI creates development leverage.

🔒 Your privacy is strictly respected under NDA.

(Start with one week free trial)