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Mobile App Development Services

Build an iOS + Android app that users actually adopt.

Get a clear scope, timeline, and a realistic estimate — free consultation.

  • React Native apps (iOS + Android) + admin panel when needed
  • API integrations, analytics, and performance-focused UX
  • Testing on real devices before release
5.0 / 5 • 17 reviewsReply within 1 business dayNDA available
See case studies

Tell us the goal — we’ll propose the most practical version to ship first.

Services

End-to-end mobile app delivery — from early concept to long-term support.

Discovery & prototyping

We clarify goals, define scope, and validate ideas early with clickable prototypes and a delivery plan.

UX/UI design

User-first flows and polished interfaces that match your brand and feel natural on iOS and Android.

Native iOS & Android development

High-performance apps built for each platform, with smooth navigation, offline-ready patterns, and secure data handling.

Automated QA & testing

Reliable releases through automated checks, regression testing, and quality gates throughout the build.

Release & post-launch support

We help you ship confidently, monitor stability, and iterate quickly based on real user feedback.

Mobile app modernisation

Upgrade legacy apps, improve performance, refresh UI, and reduce technical debt without disrupting users.

Features

A practical set of building blocks to speed up delivery without cutting corners.

Secure authentication

Credentials, biometrics, and session handling designed for real-world security.

Clear in-app navigation

Predictable user flows, deep screens, and a structure that scales with new features.

Push notifications

Timely, relevant messages with sensible opt-in patterns and delivery control.

Deep linking

Send users to the right screen from emails, ads, QR codes, or web links.

Multi-language

Localization-ready UI and content structure to support new regions.

Dark theme support

Comfortable viewing in low light with consistent styling across the app.

Security best practices

OWASP-minded design, encryption where it matters, and safe handling of sensitive data.

Network resilience

Graceful offline/poor-network behavior and smarter retry strategies.

Polished motion

Micro-interactions and optional Lottie animations that feel premium, not distracting.

Feature flags

Roll out changes safely, A/B test, and release progressively without surprises.

Local storage

Cache key data for speed and offline use while keeping privacy in mind.

Error handling

Helpful UX for failures plus logging hooks for faster debugging and stability.

Benefits

Outcomes you can expect when we build your mobile product.

A product that fits your users

We focus on real user journeys and measurable goals, not just a feature checklist.

UX that feels premium

Clean navigation, consistent UI, and thoughtful details that strengthen your brand.

Fast, reliable native performance

Platform-native behavior, smooth interactions, and maintainable code for long-term growth.

Security and stability by design

Safer data handling, proactive QA, and standards-driven engineering to reduce risk.

Support after launch

Monitoring, fixes, and iteration support so your app keeps improving over time.

Why us

A delivery partner that’s pragmatic, transparent, and quality-focused.

Experienced team, broad domain exposure

We’ve delivered systems across multiple industries and know what “production-ready” really means.

Collaboration that adapts

From a quick discovery to a longer engagement — we adjust to your pace, budget, and constraints.

Clear ownership and communication

You get predictable delivery, honest status, and decisions documented in plain language.

End-to-end delivery

Strategy, design, build, testing, release, and support — one team accountable for results.

Security as a baseline

We bake security into architecture and implementation, not as an afterthought.

Mobile app development — FAQ

How much does mobile app development cost?

Most projects start from €3200 + VAT. The final price depends on scope, integrations, and whether you need iOS + Android + admin panel.

How long does it usually take?

Typical MVP timelines are 4–10 weeks. After a short consultation we propose a realistic scope, timeline, and milestones.

Do you build both iOS and Android?

Yes. We commonly use React Native to ship iOS + Android apps efficiently, and we can also build the web/admin panel when needed.

Do you help with App Store / Google Play publishing?

Yes — we prepare builds, assist with store listings, and guide you through the publishing steps.

Who owns the source code and IP?

You do. We deliver the codebase and documentation according to our agreement, and can sign an NDA if required.

Our Clients

    • State Enterprise Centre of Registers
      State Enterprise Centre of Registers
    • Higiene Institute
      Higiene Institute
    • Government Of The Republic Of Lithuania
      Government Of The Republic Of Lithuania
    • State Digital Solutions Agency
      State Digital Solutions Agency
    • Municipality of Panevėžys
      Municipality of Panevėžys
    • Rada
      Rada
    • History Museum of Trakai Town
      History Museum of Trakai Town
    • Beljana
      Beljana

Reviews

Notas IT
5.0 / 5 • 17 reviews
View on Google
Reviews are machine-translated from Lithuanian by DeepL.
Tomas Gelažūnas
Young, energetic, with a wealth of knowledge, a great team, always on time with assigned work, both on and off the clock (when needed). Always advising on the best way to do things. Handles both small and large projects well. Definitely recommend!
Diana Gedminčė
Excellent professionals!
Kamilė Mačiulskienė
Valdas Gedmincius
If you don't know what you want, but you know you need something, these guys will not only suggest a solution, but also alternatives or the best option, so all you have to do is to choose the solution you want and you'll get fast results!

About Us

Nice to meet you!

Notas IT is a programming services company that has been operating since 2019. The company currently employs 7 specialists to develop innovative, growth-generating solutions. We are constantly developing applications and web systems to help our clients not to get lost in the vast amount of data.

We believe that by working together we can become an important part of your business, always helping you to meet the challenges of your programming work and fulfilling your most demanding needs.

We work efficiently using artificial intelligence solutions to help you get the job done faster and save costs for the client.

Programming is our daily activity and passion. We work every day to create the most productive and user-friendly applications possible.

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Benefits of the mobile app

We recommend developing a mobile app for cases where you need a particularly user-friendly interface and business process integration. Most of the goals that a mobile app achieves can be achieved by the web-based version of the system, but it is often slower and cannot work without an internet connection. Developing apps allows time and other business resources to be maximised to optimise business processes.

The main objective of the mobile app is to improve the daily processes of employees and users through smart devices.

Mobile app development process

Developing a mobile app always starts with an app description. The development team needs to know what your business needs and what design would suit you. Then, knowing all the necessary features, the team will prepare a time and financial estimate. These are agreed with the client, and once confirmed, we get to work to bring tangible benefits to your business as soon as possible. Once the work is complete, the app is uploaded to the App Store.

Server-side is an important part of application development

Developing mobile apps requires an additional application on the server that acts like a brain - doing calculations, storing data, logging changes made to the system and more. We use PHP programming language and Laravel framework to develop the server-side application. The development of the server application is included in the price of the mobile app development.

A mobile app development success story

Mobile app development has helped many of our clients. Our favourite example is auditing equipment in a manufacturing company. We developed a mobile app that only allows auditing when the user scans a QR code for the employee and the device that changes daily. This ensures that the auditing process is fully compliant and that the employee must be in the vicinity of the equipment in order to audit it.

Technologies used to develop mobile apps

As we want to make mobile apps available to as many employees as possible, we use React Native technology, which allows us to create apps for Android and iOS devices.

Notas IT teams have experience in mobile app development

Mobile apps are an area we've been working on since 2019. During this time, we've managed to complete many projects and gain invaluable experience. We have developed both public and business-only mobile apps.

Mobile app design

We have a network of trusted partners who create designs tailored to individual business needs. We'll make sure your mobile app development is implemented from A to Z - starting with an idea, a detailed analysis will be carried out, which will lead to the creation of an app that optimises your business processes.

Mobile app testing process

Mobile app development is unthinkable without detailed testing. The first testing is done on emulators, but we also have Apple and Android devices of various sizes and manufacturers, on which we try to use the app as a real user. The team's experience in mobile apps and testing allows us to efficiently find and fix bugs faster than users can access them. We have real iOS and Android devices that allow us to test apps under real conditions.

Maintenance, development and design services for developed applications

With changing consumer habits and the ever-increasing variety of technologies, changes to the app are inevitable. We are happy to expand your mobile apps and their functionality.

Cost of app development

Developing a mobile app is a bespoke process that requires detailed analysis and knowledge of business processes. Typical app development project costs start from €3200 + VAT.

Contact us

Contact us for a free consultation