Full-Cycle App Development Services

As a leading full-cycle app development company we provide app development services to keep your business up to date and save your connection with customers in our fast-changing world.

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Your trustworthy partner for the end-to-end development process

Making our custom expertise global, we help businesses adapt to new conditions & expand their opportunities.

Outsource full-cycle development process to Interexy

Trusted by

Square Inc general electric SAP Pampers chainlinks lab NFT for Lil Durk the sanobox chainlink

Want to strike a cost balance in app development?

Download costs on app development based on all factors to consider

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Share your core business idea, and we’ll take care of the rest

We adapt to innovative technologies immediately and provide next-gen expertise to save you time and money on full-cycle mobile app development services. Thanks to high-quality standards we keep sustainable and reliable app functioning even in unstable conditions.


Tight Testing Process

We emphasize the value of testing and make sure the software meets your expectations in terms of quality and will be extendable and stable for large user audiences.



We ensure both structured & standardized processes along with a human approach in place. It helps us achieve clarity of processes and quality of work.


Control & reliability

We take care of each stage of the full-cycle app development and use technical creativity to implement your business idea in the best way.



With deep specialization in full-cycle application development, we dive into innovative processes & provide new app development solutions that have not been on the market yet.


Specialists Support

Every member of our team works specifically with mobile solutions, which improves the quality of the projects we’re working on, differentiating them on quality from the competitors.

Interexy’s Experience In Full-Cycle Development


Hamburg-based fintech health startup mobile application based on the idea of rewarding users for health & fitness activities


Creation of the first MVP for the company from scratch based 
on a project that was created in a very short time to convince 
investors of the need for a financial round.


We decided to rewrite the whole product from scratch, using 
native iOS development technologies.HealthKit integration was 
one of the main reasons for us to make this kind of decision since 
the app was built using cross-platform React Native technology.


We got to the top 17th of the German Health & Fitness App Store
page — the product was competing with a multi-million dollar
 application, and we built an MVP within 1.5 months with under 
a $20k budget. Awesome user reviews are the best validation 
of the work done.

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One Rover

One Rover is a leader in Rideshare cost savings, options, and satisfaction. 
A Rover is a professional partner Driver that is dedicated to providing robust 
commute options to One Rover platform users in boundless locations 
around the world.


Develop a stable mobile solution for existing SaaS web-based products
to automate logistics & items scanning activities for employees 
in cannabis businesses.


Develop a stable mobile solution for existing SaaS web-based products
to automate logistics & items scanning activities for employees 
in cannabis businesses.


One Rover had existing web-based products and tight time-frames outlined 
by the investors to develop MVP of the app using complex Unity integrations 
with new-born app development technology — Flutter.


The app was developed and successfully launched into the Google Play Market 
— it has 100,000+ users and counting!

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Hire Developers

Let us choose the best specialist for you according to the project requirements so you can kick off the project within 5 business days!

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How our end-to end development team works

Requirements &Qualification
The very first stage that our full-cycle app development company does is meeting your account executives to define relationships and factors in the requirements that we need to develop.
Specification & Estimation
After the specification is completed, we’re providing you with an estimation for the product with a break-down of budget & timeline divided into sprints for the whole product development.
UI/UX Design
Using the insights from the mockups & wireframes prepared during the Specification development process, our full-cycle mobile application development company fleshes out the journeys and states to create a clear, seamless, and delightful user experience.
The fundamental stage, which success is based on well thought-through project structure and effectively performed previous steps. During the development process, you can suggest any features you would like to carry out.
Testing & Bug fixing
We have testing & bug fixing as a separate stage of the process – and that’s why we provide top-notch full-cycle mobile application development services.
We develop applications that fully meet market requirements. When the application is fully ready, we publish it on Google Play and App Store and take on any questions that may arise during its publication.

Keep Up With 
The Mobile-First World!

Get in touch to build a multifunctional, user-friendly, secure mobile app for your business.

Pre-estimate my app project

Support packages

We provide products maintenance services for the current clients after the development stage of outsource projects.
All packages are concluded for a minimum of 12 months.


/per month

Light Package

  • 40 hours – per 1 developer
  • 40 hours – QA
  • 20 hours – PM
description Most popular Starts from:


/per month

Business Package

  • 80 hours – per 1 developer
  • 80 hours – QA
  • 40 hours – PM
  • 40 hours – BA


  • 40 hours – Designer
  • 20 hours – Devops

Whats included:

  • New Design Features
  • Infrastructure maintanence
  • Development Support
  • Infrastructure Optimization
description -10% OFF Starts from:


/per month

Business Package

  • 160 hours – per 1 developer
  • 160 hours – QA
  • 80 hours – PM
  • 80 hours – BA


  • 80 hours – Designer
  • 40 hours – Devops

Whats included:

  • New Design Features
  • Infrastructure maintanence
  • Development Support
  • Infrastructure Optimization

Full-cycle app development 
with Interexy best choice for


Process Digitalization


Building new 
digital ecosystem


B2B Startups

Our Industry Expertise 
and Business Verticals

Telemedicine (TeleHealth)
Wellness & Fitness
Cannabis apps
On-demand delivery apps
Real estate
Delivery apps
Online education

Technology expertise for solid solutions

Mobile Front-end

React Native




Native IOS


Flutter (Dart)


Kotlin Multiplatform



Node Js




Ruby on Rails






Web Front-end












Interexy LLC is a Miami-headquartered custom software development and IT consulting company with deep expertise in over 15 industries offering innovative solutions for such market giants as SAP, Pampers & General Electric.

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See our experience


The app is in development stage, although the client is satisfied with our work and wants to go further with our team after raising investments.

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Gamifly is a Web3 gateway that connects traditional gaming companies and mass consumers to the Web3 ecosystem, by offering no-fuss SDK to onboard...

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NFT Ticketing

Since the NFT industry is growing rapidly, NFT Ticketing should become one of pioneers in the field of sending tickets in the form of non-fungible tokens.

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Labster is an AR startup helping teachers & students across the world to get study faster & efficiently by providing virtual labs experience.

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Medico Stores Delivery

Medico Stores is the retail mobile application designed to work as a marketplace for medications and connect users, retailers, pharmacies or private clinics and couriers.

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ELOSIA is a health check app designed to allow users of private clinic networks to easily perform analysis of urine right in their homes

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Ryan Ruud is a businessman who works in the Compassly organization focused on supporting people struggling with autism disease.

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Working with Interexy has been incredible, the team is easy to communicate with, understands the healthcare industry in-depth and is always open to implementing new ideas as they come up.

Read case

Ways to Engage with us

    Project budget (USD)*
    $20 - 50k
    $250 - 500k
    $50 - 100k
    $500 - 1M
    $100 - 250k
    Fill the form / email us at info@interexy.com or give us a call at +48571793561 +19312469959 (8:00 am to 5:00 pm pacific time)