Service · Software Development

Android and iOS Web App Development

We build custom web, Android and iOS apps with Flutter and React Native: one codebase for three channels, integrated with your website and business systems. From functional analysis to MVP through to store publication.

  • 4.7 · 37 Google reviews
  • 25 years of experience
  • ISO 9001 / ISO 27001
Cross-platform web, Android and iOS app development for business
3 channels from a single codebase: Android, iOS, web

01 / Risposta rapida

What cross-platform app development is, in short

Cross-platform development lets you build a single codebase that runs on Android, iOS and browsers: with Flutter, React Native or Xamarin you cut time and cost compared to two separate native builds, while keeping a consistent user experience.

  • One codebase for Android, iOS and Progressive Web Apps
  • Integration with your website, CRM and ERP via REST APIs
  • MVP to validate your idea in the market quickly

02 / Who we work with

Apps for startups, SMEs and structured businesses

Startups looking for a fast MVP, SMEs wanting to automate a process or open new channels, structured organizations that need to connect the app to existing systems.

  • Startups
  • SMEs
  • Structured businesses
  • E-commerce
  • Sales and agent networks
  • SaaS platforms and marketplaces

03 / Native or cross-platform

Native app or cross-platform: which is right for you

You don't always need two separate apps: here's when native makes sense, and when a single shared codebase is the better choice.

Separate native development

  • Two distinct codebases for Android and iOS
  • Higher time and cost, updates to align on each store
  • Useful for apps with very demanding hardware requirements

Cross-platform development (Flutter/React Native)

  • One codebase for Android, iOS and browser
  • Reduced time and cost, simultaneous updates across all stores
  • Progressive Web App when store installation isn't needed
In short: For most business projects, cross-platform development with Flutter or React Native cuts time and cost without sacrificing performance; native remains the right choice for apps with very specific hardware requirements.

04 / The benefits

Why build your app with TN Solutions

  • 3 platforms covered by one codebase: Android, iOS, web
  • 12 wks to publish an MVP on the stores
  • 100% GDPR and data-security compliant development
  • 25+ years of experience in software development

How quickly we take charge of your request

Just like in our VirtualAssistance support contract model, the response time is selectable based on how critical your systems are: the shorter it is, the higher the priority.

Response SLABest suited for
3 hoursCritical servers and services that cannot afford downtime
8 hoursWorkstations and services with a significant operational impact
12 hoursRelevant requests that can be handled within the working day
24 hoursRoutine requests and activities that can be scheduled

It's the same selectable SLA model used in our IT support contracts: we define it together based on your systems, with no hidden costs.

Not sure which SLA level is right for you? We analyse your infrastructure for free and help you choose the SLA that best fits your company, with no obligation.

05 / Tools and technologies

Modern frameworks for high-performing, scalable apps

  • Flutter
  • React Native
  • Xamarin
  • REST APIs
  • Progressive Web App

06 / Partner tecnologici

07 / Approfondimento

Guide to web, Android and iOS app development

  • 25+ Years supporting businesses
  • 4.7/5 Average rating on Google
  • 37 Verified reviews
  • ISO 9001/27001 ISO certifications

TN Solutions' web, Android and iOS app development covers the entire cycle: functional analysis, wireframes, MVP, UX/UI design, cross-platform development with Flutter and React Native, testing and store publication. A single codebase for Android, iOS and browser, integrated with your website and business systems, to reduce management time and cost.

Web, Android and iOS app development for business

Custom App Development for Your Business

Trust TN Solutions for custom app development, conceived and built to fit perfectly into your business processes. Our service supports SMEs, startups and companies in designing web and mobile applications with a consulting-driven, technical and strategic approach: we analyze needs, define the architecture, create wireframes and develop high-performing solutions ready to scale.

The apps we build come from a structured process — functional analysis, MVP definition, UX/UI design, agile development, testing and publication — and follow three principles we apply to every project.

Web Apps That Work on Both Android and iOS

We guarantee compatibility and performance on both platforms, with a consistent user experience for everyone:

  • Cross-platform development with Flutter, React Native and Xamarin: one codebase, three channels (Android, iOS, browser)
  • Reduced time and cost compared to two separate native builds
  • Simultaneous updates across all stores, with no version drift
  • Progressive Web App when store installation isn't required

MVP to Launch Fast, Without Waste

We build lean, high-performing Minimum Viable Products to test your app on the market quickly:

  • An initial version with only the features that generate value
  • Real user feedback before investing in the full product
  • Incremental roadmap: you only build what the data proves useful
  • A contained starting budget and cost control at every sprint

User Experience at the Center of the Project

Every app is designed with professional UX/UI criteria to reduce the learning curve:

  • Clear layouts and simple navigation, tested with real users
  • Functional wireframes validated with the client before development
  • Accessible, consistent interfaces across smartphone, tablet and desktop
  • Micro-interactions and response times optimized for fast adoption

Web and Mobile App Development Connected to Your Website

We design and build web and mobile apps compatible with every device, using modern frameworks and REST APIs. Apps connected to your website, portals or existing management systems guarantee operational continuity, data consistency and a better experience for users and end customers.

Custom Mobile Apps for Business Growth

With TN Solutions, mobile app development becomes a strategic lever. We build custom apps for internal management (warehouse, sales agents, production), customer engagement (loyalty, booking, configurators) or new business models (marketplaces, e-learning, SaaS). Every application is designed to guarantee performance, a smooth experience and fast release times thanks to lean methodologies and modular development. If the app needs to talk to your CRM or management software, we integrate it using the same approach as our custom CRM projects.

UX/UI Best Practices, Wireframes and MVP

Every successful app starts with good design. Our approach follows UX/UI best practices to guarantee an intuitive, smooth and consistent experience on every device. We start from functional wireframes that let you visualize the app's structure before development begins, making it easier to align with the client and reducing errors and revisions. For startups and early-stage projects, we propose an MVP: a lean version that lets you validate the idea, gather feedback and get to market quickly, optimizing costs and resources.

Wireframes and mockups of a mobile app on a smartphone during design

Who We Work With: Startups, SMEs and Structured Businesses

We work with companies of every size that want to invest in digitization through applications: startups looking for a fast MVP, SMEs wanting to automate a process or open new channels, and structured organizations that need to connect the app to existing systems — Microsoft 365, ERP, e-commerce platforms. Every project follows the same ISO 9001 and ISO 27001 certified method used across our software development services.

Development team at work on integrated business applications

The Benefits of Developing an App for Your Business

Here's why companies choose TN Solutions to build an app:

  • Custom apps with scalable features, designed around your real processes to optimize workflows and boost productivity
  • Guaranteed cross-platform compatibility, with unified development for Android, iOS and browser
  • Native integration with your website and business systems, for data consistency and automation
  • Professional UX/UI design based on wireframes and best practices, for usability and fast adoption
  • Secure, compliant development, with cloud-native solutions, advanced authentication and GDPR-aligned data management

Frequently asked questions

What does web and mobile app development include?

It covers the design, creation and launch of applications accessible from mobile devices (iOS and Android) or from a browser. Solutions can be native, web-based or cross-platform, integrated with your website or with other business systems such as CRM and ERP.

Can you connect the app to my website?

Yes. We build apps connected to your website, synchronized in real time with content, databases or private areas. It's the ideal approach for e-commerce, management platforms, customer portals and hybrid web-mobile solutions.

Is app development worth it for an SME too?

Yes. Today it's possible to build custom apps even for small and medium-sized businesses, at accessible costs and with flexible technology: bookings, orders, notifications and loyalty programs managed through a single tool increase efficiency and perceived value.

Can you integrate push notifications, GPS or payments?

Absolutely. During development we can implement push notifications, GPS tracking, QR codes, online payments, document scanning and much more, based on your app's goals. Every feature is designed to improve user interaction.

How long does it take to publish an app?

A well-defined MVP reaches the stores in 8-12 weeks; a complete app with management-system integrations typically takes 3-6 months. After the initial analysis, you receive a release plan with milestones and firm costs.

Other software development services

Explore our other software development services: custom CRM, e-commerce, SharePoint sites and Docker containerization.

Have an idea to turn into a custom app?

From concept to development plan: one of our analysts will review your project for free and propose architecture, timeline and cost, with a first MVP to get started right away.

08 / Talk to an expert

Talk to an app development expert

Tell us your idea or the process you want on mobile, we'll call you back within one business day.

Describe the app you want to build or the process you want to digitize: one of our analysts will contact you for a first free consultation, from concept to development plan, with no obligation.

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