Background application screenshots

On Demand Mobile Application Development

We’re a cutting edge on-demand app development company for technology startups that create universal applications for the B2B market and for businesses to digitize their processes through cutting-edge app development solutions.

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application screenshots backgroundOn-demand app

Mobility is the key to the progress and evolution of an on-demand business

Just look at some statistics:

25 Billion

The annual growth rate of the on-demand sphere revenue is expected at about a 6% level in the next 4 years, which should result in a market volume of about $25 billion by 2023.



42% or 86.5 million Americans have used on-demand mobile application development services.

693 Billion

By 2021 mobile app market revenue is expected to reach $693 billion.

9 999

However, almost 9,999 in 10,000 mobile apps fail.


Build loyalty with clients and succeed with integration of a high-quality and multi-compliant app that correlates with business goals and its clients’ needs.

Case studies

Reach out to us for crafting a user-centric app that is worth a thousand downloads!

Get in touch

Interexy with contemporary technology stack enhances and adapts innovative ideas to modern requirements to meet business goals.

Adapt and sustain your business
Adapt and sustain your business
Adapt and sustain your business
Adapt and sustain your business

Adapt and sustain your business

A mobile application that fully covers the needs of your business in digitizing.

Digitize My Business01/03
Adapt and sustain your business

Realize your business idea

Complex development solutions that allow the creation of robust and powerful apps.

From Web to App02/03
Adapt and sustain your business

Create compliant product

Solutions that meet business needs & offer exceptional customer satisfaction.

App development03/03

Industry sectors we’re professionals in

Food delivery App

Meet the latest food business trends, stay tuned for demand and boost your sales and marketing with apps like Uber Eats and Glovo with an on-demand application development company.

Healthcare App

Crucial in case of emergency. Give an opportunity to patients from remote areas to get immediate access to healthcare services.

Case study

Pharmacy Delivery App

Extend the boundaries of customer capabilities, especially elderly people as well as people with medical conditions through on-demand mobile app development services.

Case study

Professional services App

Give the possibility to hire professionals for any work. It also offers all professionals an employment opportunity.

Case study


Digitize your business with modern mobile app technology and attract new customers with logistics app like Uber that rocked the world already.

Case study

Real estate

Help users explore and buy properties across their desired locations. Simplify communication with the owner of the properties in all issues.

Case study

E-commerce on-demand services

Enable users and retailers to buy and sell almost everything they need with help of interexy’s on-demand mobile app development services.

Case study

Core technologies used to build functional mobile solutions

Payment gateway integrations

AR/VR for Apps

ML & AI for Apps

Social features

Camera functionalities

Location management

Essential Notifications

The Wishlist Feature

Visual Appeal

Ratings & Reviews

Efficient Customer Care

Authentication and Security

Easy Interface

Activity List

Core technologies used to build functional mobile solutions

Reach out to us for crafting a user-centric app that is worth a thousand downloads!

Get in touch

We ensure:

& stability


Fresh minds

Structured and professional communication

Responsiveness and responsibility


Relevant cases &

Well-balanced & effective on-demand app developers

Post-production product support and scaling

What the app looks like

See our customers’ evolution



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.


Jason Kelley

Founder @MUSL

“I was always looking at where it intersects with the skill base of the team and the customer service, communication, project management. You can have a really amazing team of talented developers and programmers but you’re going to end up spending a great deal of your time actually trying to self-manage them. Versus you have the opposite which is really good project management and really excellent communication but not so great development team. And what I’ve enjoyed working with Interexy is the fact that I get both of those pieces together and that has been very satisfactory.”Read more

Saad Saeed

Founder & CEO @ Crumb

“Within its first nine weeks, the app received 8,000 users and a 4.7-star rating. The platform is well designed and hasn’t had many bugs. Interexy LLC is fast and efficient at building new features as well as taking scope changes in stride. Expertise and responsiveness are hallmarks of their work.”Read more

Will von Behr

Founder @ Urbs Travel

“I got an amazing product that was exactly what I envisioned when I first sat out & drew the plans. The two areas that I think where Stan & his team particularly excel: first is attention to detail (…) & secondly the kind of support they’ve provided after the app was largely complete. I’m sure the number of teams just do the bug work & leave it but they are [Interexy team] always on hand to answer any questions really at any time of day which is incredible.
So I’d encourage anyone who wants to build any sort of product to use Stan & his team. It’ll accelerate your business and make your life a whole lot easier.”
Read more

Rob Fedun

Founder of Tinga Nutrition Inc.

“I was very impressed by their level of knowledge, willingness to learn, creativity and customer service. They are a growing company and take this opportunity very seriously, looking to learn from their overall process and client interactions. Interexy LLC is in line with our expectations and they are always available.”Read more

Ways to Engage with us

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