🚀 Expert App Development

Crafting Digital
Experiences
That Inspire

We build high-performance mobile apps and scalable web platforms for ambitious startups and enterprises worldwide. Transform your vision into a stunning reality.

50+ Apps Delivered
10+ Countries
100% Client Success
AI Buddy App Axxo App
Top Rated Mobile Agency
LuxPass App Development
STMZ App
2019 Founded
About Nautilus Techlabs

We don't just build apps.
We build businesses.

Nautilus Techlabs is a top-tier custom mobile app and web development company. We have delivered 50+ production-grade applications across Flutter, Swift, and Kotlin for clients in over 10 countries.

Our agile workflow ensures transparent tracking from concept to App Store launch. We specialize in cross-platform development, native iOS/Android, and IoT/BLE integrations.

Quality Service

Pixel-perfect design & bug-free code

Client Satisfaction

100% Job Success Score on Upwork

Best Price

Competitive, affordable pricing

Reliable Support

Dedicated maintenance

Our Expertise

Transforming Ideas into
Powerful Digital Solutions

We provide end-to-end development services, from initial UX prototyping to final App Store deployment and ongoing maintenance.

Flutter

Flutter Mobile App Development

High-performance cross-platform apps for iOS, Android, web, and desktop from a single codebase. Delivering native-like experiences with faster time-to-market.

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Native Apps

Native iOS & Android

Secure, high-performance native apps using Swift & Kotlin with platform-specific optimizations.

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Web Dev

Web Development

Fast, responsive, SEO-friendly websites using modern frameworks and technologies.

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UI UX

UI/UX Design

Intuitive designs backed by research, wireframes, and interactive prototypes.

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QA

QA & Testing

Rigorous automated and manual testing to ensure your product is stable and secure.

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Support

App Maintenance

Ongoing maintenance, bug fixes, security updates, and performance optimization.

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Our Process

How We Do It

A proven, transparent agile methodology ensuring your product is delivered on time, within budget, and to the highest quality standards.

01

Requirement Analysis

We begin by thoroughly understanding your business goals, target audience, and technical requirements to define a clear project roadmap.

02

UI/UX Design

Our designers craft intuitive wireframes and interactive prototypes, focusing on user journeys and modern aesthetics to ensure high engagement.

03

Development

Our expert engineers write clean, scalable code using Flutter, Swift, or Kotlin, adhering to agile sprints and continuous integration practices.

04

QA & Testing

Rigorous manual and automated testing ensures the app is bug-free, highly performant, and secure across all devices and platforms.

05

Deployment

We handle the complex submission processes to the App Store, Google Play, or web servers, ensuring a smooth and successful launch.

06

Support & Maintenance

Post-launch, we provide proactive monitoring, bug fixes, and feature updates to keep your app competitive and compatible.

Our Portfolio

Some of our Finest Work

AI Buddy Application Portfolio - Nautilus Techlabs

AI Buddy

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

Axxo Kart Application Portfolio - Nautilus Techlabs

Axxo

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

LuxPass POS Portfolio - Nautilus Techlabs

Lux Pass Epos

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

STMZ Application Portfolio - Nautilus Techlabs

STMZ

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

Brand Studio Application Portfolio - Nautilus Techlabs

Brand Studio

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

Popoff Application Portfolio - Nautilus Techlabs

PopOff

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

Speak Notes Application Portfolio - Nautilus Techlabs

Speak Notes

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

SCS Pooled Trust Portfolio - Nautilus Techlabs

SCS Pooled Trust

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

All Social Portfolio - Nautilus Techlabs

All Social

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

Hue Pro DJ Application Portfolio - Nautilus Techlabs

Hue Pro DJ

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

Unit Converter Portfolio - Nautilus Techlabs

Unit converter

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

Todo App Portfolio - Nautilus Techlabs

Todo App

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

Zidd Application Portfolio - Nautilus Techlabs

Zidd

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

Tethys E-ID Portfolio - Nautilus Techlabs

Tethys e-ID

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

Tethys E-ID Scanner Portfolio - Nautilus Techlabs

Tethys e-ID Scanner

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

NT Music Application Portfolio - Nautilus Techlabs

NT Music App

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

Witty Kids Application Portfolio - Nautilus Techlabs

Witty Kids

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

Shuk Application Portfolio - Nautilus Techlabs

Shuk

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

Squadr Game Together Portfolio - Nautilus Techlabs

Squadr_Game Together

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

Donation App Portfolio - Nautilus Techlabs

Donation And Sponsorship App

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

Charge Me Portfolio - Nautilus Techlabs

Charge Me

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

Fahrlehrer.ch Portfolio - Nautilus Techlabs

Fahrlehrer.ch

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

Quiffers Portfolio - Nautilus Techlabs

Quiffers

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

Web Application Portfolio - Nautilus Techlabs

Web App

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

Lee Distributors App Portfolio - Nautilus Techlabs

Lee Distributors App

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

Admin Panel Portfolio - Nautilus Techlabs

Lee Distributors Web Admin Panel

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

PM Vrundavan Portfolio - Nautilus Techlabs

PM Vrundavan

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

Everlink Application Portfolio - Nautilus Techlabs

Link by Everlink

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

Property Circle Portfolio - Nautilus Techlabs

Property Circle

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

Better Match Application Portfolio - Nautilus Techlabs

Better Match

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

FitAim Application Portfolio - Nautilus Techlabs

FitAim

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

Why Choose Nautilus Techlabs for Your Next Project?

Nautilus Techlabs has delivered 50+ production apps using Flutter 3.x, Swift, and Kotlin across dating, fintech, healthcare, e-learning, and IoT industries. We build for startups launching MVPs and enterprises scaling existing platforms.

What sets us apart: Our developers ship with Flutter/Dart, Swift 5, Kotlin, Firebase, and CI/CD pipelines — not just "the latest technologies." We follow a structured 6-phase process (Discovery, UI/UX, Development, QA, Deployment, Maintenance) with daily standups, weekly sprint reviews, and Jira-based transparency throughout.

We offer two engagement models: Dedicated Resource Model (monthly contracts for long-term projects) and Fixed Cost Project Model (milestone-based delivery for defined scopes). Both include 100% source code ownership, NDA protection, and post-launch maintenance support.




Dedicated resource model

Choose this model when you find it hard to determine all the final requirements of your product right at the beginning. Your project specifications and requirements are constantly evolving.

Dedicated resource model



Fixed cost project model

Fixed cost project model

The fixed cost project model (also known as a project-based model) is ideal for small to medium-sized projects where requirements, specifications, and timelines can be clearly defined before project development begins.

Tools & Technologies we work with

Flutter

Flutter

Dart

Dart

Android

Android

Kotlin

Kotlin

iOS

iOS

Swift

Swift

Slack

Slack

Figma

Figma

Github

Github

Supabase

Supabase

Jira

Jira

Firebase

Firebase

Typescript

Typescript

React

React

React Native

React Native

Visual Studio

Visual Studio

Android Studio

Android Studio

XCode

XCode

TESTIMONIALS

Our clients praise us for our great results

Rated 5.0 on Clutch

Have Questions?

Frequently Asked Questions

Every app is unique, which means every budget is too. The cost depends on multiple factors: your app's features and functionality, design complexity, platform choice (iOS, Android, or both), third-party integrations, and development timeline.

Our approach is transparent: we start with a detailed discussion of your requirements and objectives, then provide a comprehensive estimate broken down by features and development phases. This way, you know exactly what you're paying for and can prioritize features based on your budget. We believe in no surprises, just honest pricing based on real project scope.

Development timelines vary based on your app's complexity and feature set. Simple apps with basic functionality typically take 2-3 months, while complex apps with advanced features can take 6-9 months or more.

Here's our process: Once we understand your requirements, we create a detailed project roadmap with clear milestones. We start with a one-month sprint to give you concrete progress and a refined timeline estimate. Plus, we offer a two-week trial period if you're not satisfied with our work, you can exit the project with no penalties. This ensures you're confident in our capabilities before fully committing.

Absolutely, yes. We understand your app concept is valuable intellectual property that needs protection. Before diving into any project specifics, we're ready to sign a mutual Non-Disclosure Agreement (NDA) to legally safeguard your information.

Confidentiality isn't just a legal obligation for us; it's a core principle. Every conversation, document, and piece of information you share stays strictly between us. Your ideas deserve protection, and we're committed to providing that security from day one.

We offer both approaches and help you choose the right one for your specific needs:

Native Development: We build separate apps for iOS (Swift) and Android (Kotlin/Java). This approach delivers maximum performance, seamless integration with device hardware, and the most polished user experience. Higher cost and longer development time.

Cross-Platform Development: Using Flutter, we write one codebase that works on both iOS and Android. This cuts development time and costs by nearly half while still delivering excellent performance for most use cases.

Transparency is built into our workflow. You'll receive daily standups from your development team quick updates on what was completed yesterday, what's planned for today, and any blockers we're facing. At the end of each week, you get a comprehensive report detailing completed work, upcoming sprint goals, and overall project progress.

But we don't stop there. You have open communication channels via Zoom, Slack, or email whenever you need clarification or want to discuss the project. We believe in real-time collaboration, not just periodic updates. You're never left wondering what's happening with your project.

Simple answer: You own everything, 100%. Once the project is delivered and final payment is processed, you receive full ownership of the source code, design files, technical documentation, and all project-related assets. There are no strings attached.

You're free to modify the code, hire another team for future updates, or do whatever you wish with your app. We don't retain any rights to your intellectual property. The only thing we ask for (with your approval) is permission to feature the project in our portfolio as a showcase of our work, but even that's optional and entirely your decision.

Launch day isn't the end—it's just the beginning. We offer ongoing technical support and maintenance packages to keep your app running smoothly. This includes bug fixes, performance monitoring, OS compatibility updates, security patches, and minor feature enhancements.

If you prefer to handle maintenance in-house, no problem. We'll hand over the complete source code and detailed technical documentation so your team can take over seamlessly. Even after handoff, our door remains open if you run into technical challenges or need guidance.

Yes, we handle the entire app store launch process for both the Apple App Store and Google Play Store. This includes:

  • Setting up or managing your developer accounts
  • Creating compelling app store listings (descriptions, keywords, screenshots)
  • Ensuring your app meets all platform guidelines
  • Submitting your app for review and managing communication

App Store approval can be tricky, but we've shipped 50+ production apps and know exactly what reviewers look for. We'll guide you through every step and handle the technical headaches so you can focus on your app's launch marketing.

Of course! We're proud of our talented team and happy to share their credentials. Simply reach out through our contact form or email with details about your project requirements, preferred technologies, and any specific expertise you're looking for.

We'll respond with detailed profiles of team members whose skills align with your project needs. You'll see their educational background, years of experience, technical specialisations, previous projects, and certifications.

We offer flexible engagement models to match your needs. Contact us with your project requirements, preferred tech stack, and timeline. Based on this information, we'll share profiles of developers whose expertise matches your needs.

You can review candidates, review their portfolios,and even assign a test task to evaluate their skills before making a decision. We offer multiple hiring options:

  • Dedicated developers for long-term projects
  • Part-time developers for smaller scopes
  • Full project teams (developers, designers, QA)
  • Trial periods to ensure the right fit

Let's Scale Your Brand, Together

Ready to start your next big project? Get in touch with us for a free consultation.

Your privacy is respected.