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
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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

A clear plan. Progress you can see.

From your first brief to launch, our delivery process keeps you involved at every stage. We agree the scope, show working progress and review the next step together, whether you are building a new product or improving an existing one.

  1. Agree the plan

    Discovery & Scope

    We understand your goals, users and existing systems, then define the priorities, technical approach and milestones. You see what we will build and how progress will be assessed.

    What you receive
    • Product brief & priorities
    • Technical approach & milestones
    • Scope & acceptance criteria
    Your review point

    Confirm the scope and delivery plan.

  2. Test the approach

    Design & Validate

    We map user journeys or system workflows and use designs, prototypes or technical checks to test key assumptions. Your feedback shapes the approach before full implementation.

    What you receive
    • User flows or system workflows
    • Designs, prototypes or feasibility checks
    • Agreed implementation priorities
    Your review point

    Review the proposed solution before we build.

  3. See the progress

    Build & Review

    We build in focused increments, share working versions and test critical behavior. Engineers review the code, including AI-assisted work, before it moves toward release.

    What you receive
    • Working builds & progress reviews
    • Reviewed code & automated checks
    • Integration & user journey testing
    Your review point

    Try the product and confirm each milestone.

  4. Take ownership

    Launch & Handover

    We complete release checks, prepare the deployment or store submission, and hand over your code and documentation. Monitoring and ongoing support are planned around your agreed scope.

    What you receive
    • Release checks & deployment support
    • Source code, assets & documentation
    • Handover walkthrough & support plan
    Your review point

    Review launch readiness and the handover.

Tell us what you want to build or improve. We will help define the scope and next steps.

Plan Your Project
Our Portfolio

Different products. Practical engineering.

Explore mobile apps, AI tools, connected devices and web platforms we have worked on. See what each product does, who it serves and the technologies behind it.

AI Products

AI & Lifestyle

AI Buddy

iOS & Android (Flutter)

Create AI-generated art, chat with AI personas and share content through a Flutter app for iOS and Android.

  • Flutter
  • OpenAI API
  • RevenueCat
  • +1
IoT & Hardware

Motorsports IoT

Axxo

iOS & Android (Flutter)

Connect BLE scales to monitor go-kart weight distribution, with real-time readings and automatic reconnection.

  • Flutter
  • BLE 5.0
  • Reactive Canvas
  • +1
Mobile Apps

Retail & Salon POS

Lux Pass Epos

Cross-Platform (Flutter)

Manage salon appointments, transactions and analytics across multiple locations in a shared mobile application.

  • Flutter
  • Firebase
  • Stripe Terminal
  • +1
Mobile Apps

Public Utility & GIS

STMZ

iOS & Android (Flutter)

Report and find lost animals in Switzerland with multilingual support, interactive maps, alerts and a hospital locator.

  • Flutter
  • Mapbox SDK
  • i18n
  • +1
AI Products

Marketing Automation

Brand Studio

iOS & Android (Flutter)

Help small businesses create branded festival marketing content with AI tools and a curated media library.

  • Flutter
  • AI Graphics
  • Social APIs
  • +1
Mobile Apps

Social & Dating

PopOff

iOS & Android (Flutter)

Browse photos and short profiles to discover potential matches through a mobile dating experience.

  • Flutter
  • WebSockets
  • Push Alerts
  • +1
AI Products

Speech & AI

Speak Notes

iOS & Android (Flutter)

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

  • Flutter
  • Speech-to-Text
  • Audio Processing
  • +1
Mobile Apps

Fintech & Banking

SCS Pooled Trust

iOS & Android (Flutter)

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

  • Flutter
  • Fintech
  • Check Deposit
  • +1
AI Products

AI Content Engine

All Social

Web & Mobile

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

  • Flutter
  • React
  • AI Copywriting
  • +1
IoT & Hardware

Smart Lighting & Audio

Hue Pro DJ

iOS & Android (Flutter)

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

  • Flutter
  • Philips Hue API
  • Audio FFT
  • +1
Mobile Apps

Utility & Tools

Unit Converter

iOS & Android (Flutter)

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

  • Flutter
  • Offline First
  • Clean Architecture
Mobile Apps

Productivity

Todo App

Cross-Platform

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

  • Flutter
  • Hive DB
  • State Management
Mobile Apps

Health & Fitness

Zidd Fitness

iOS & Android

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

  • Flutter
  • Community
  • Activity Tracking
Mobile Apps

Digital Identity

Tethys e-ID

iOS & Android

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

  • Flutter
  • Cryptography
  • Biometrics
IoT & Hardware

Identity Verification

Tethys e-ID Scanner

iOS & Android

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

  • Flutter
  • Barcode/QR Scanner
  • Secure Auth
Mobile Apps

Audio & Entertainment

NT Music App

Android & iOS

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

  • Flutter
  • Audio Player
  • Lock Screen Controls
Mobile Apps

EdTech & Kids

Witty Kids

iOS & Android

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

  • Flutter
  • Gamification
  • Interactive Canvas
Mobile Apps

Food & Dining

Shuk Local Deals

iOS & Android

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

  • Flutter
  • Geolocation
  • Store Listings
Mobile Apps

Gaming & Social

Squadr_Game Together

iOS & Android

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

  • Flutter
  • Push Alerts
  • Gaming Hub
Mobile Apps

Non-Profit & Philanthropy

Donation & Sponsorship

Cross-Platform

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

  • Flutter
  • Payment Gateways
  • Crowdfunding
Mobile Apps

Lifestyle & Motivation

Charge Me

iOS & Android

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

  • Flutter
  • Social Share
  • Quotes Engine
Mobile Apps

EdTech & Driving

Fahrlehrer.ch

iOS & Android

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

  • Flutter
  • Social Integration
  • Swiss App
Mobile Apps

E-Commerce & Deals

Quiffers Deals

iOS & Android

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

  • Flutter
  • E-Commerce
  • Deals Map
Web & Cloud

Enterprise Web

Secure Web App Portal

Web Portal

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

  • React
  • Astro
  • Web Security
Mobile Apps

Logistics & Warehouse

Lee Distributors App

Android & iOS

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

  • Flutter
  • Inventory Tracking
  • Logistics
Web & Cloud

Admin Dashboard

Lee Distributors Web Admin

Web Portal

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

  • Web Portal
  • Data Tables
  • RBAC Auth
Mobile Apps

Real Estate

PM Vrundavan

iOS & Android

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

  • Flutter
  • Real Estate
  • Image Gallery
IoT & Hardware

Sound Protocols & IoT

iOS & Android

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

  • Flutter
  • Audio Ultrasonic
  • Networking
Mobile Apps

Real Estate Portal

Property Circle

iOS & Android (Flutter)

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

  • Flutter
  • WordPress REST API
  • Property Search
Mobile Apps

Matchmaking & Dating

Better Match

iOS & Android

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

  • Flutter
  • Chat WebSockets
  • Match Engine
Mobile Apps

Fitness & Nutrition

FitAim Companion

iOS & Android

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

  • Flutter
  • HealthKit
  • Nutrition Planner

Project overview

Technologies & capabilities

    Discuss a Similar Project
    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 to match your product's requirements, integrations and maintenance needs. Our stack supports mobile apps, web platforms, AI features and cloud services.

    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 ↗

    "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

    "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

    "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

    "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)

    "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

    "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 reviewed, tested, and integrated into the application's structured architecture by our engineers. We use it to support development, with engineers responsible for checking its quality before release.

    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)