iOS & Android App Development – Services for Stockholm Businesses

You need specialists to build your mobile app? Whether you’re a big Sweden-based enterprise or a small startup, we can help you out.

Our specializations


Android app development

We build native Android apps with Kotlin. Our team can start a whole new project with you or help you develop an existing product.

Apple iOS

iOS app development

Specialists at Holdapp develop native iOS apps mostly with Swift. But if you need experts in Objective-C, we can help you out, too.


Flutter development

You want to have one app that works both on iOS and Android? Our developers can create a cross-platform app using Flutter.

Icon: design for smartphones

UX/UI design

The goal of our designs is to make the app intuitive, user-friendly, functional, and aesthetically pleasing, at the same time.

Icon: strategy

QA tests

Before the app is released, we conduct many various tests to see if the software works as intended and ensures the best performance.

Icon: rocket

Product Discovery process

You’re still figuring out the best solutions? Start the Product Discovery process with us. We can conduct a user research and run a workshop to create the best vision of your product.

Why choose us?

Seniority level

Our developers have from 3 to 12 years of experience in iOS & Android app development.


Global Experience

The software development team has successfully completed various projects with international companies, including Scandinavian ones.

Attention to detail

We constantly check if the app works well thanks to code review, automated and manual tests, and UX research.

Discover new opportunities

To make the biggest profit out of your app, you need more that an efficient software and nice-looking interface. First, you have to know your users better and define your goals. It’s all part of the Discovery process. Tell us about your project and we’ll help you get through it.

Contact us

We joined forces to create a tailor-made app that suits every client’s needs: fast, intuitive, and reliable. From the beginning, we work on new functionalities, we also try to improve the existing ones. The cooperation is great – Holdapp can adjust to our propositions of changes, it supports us, has a great technology stack, and offers an individual approach to our industry.



answear logo
forBET logo
Universal Music Group logo
Egmont logo

Our projects

See more apps

Mobile Trends Awards 2023: Winner in M-COMMERCE DEVELOPMENT category

ios / android


M-commerce app for online fashion retailer with clothes, shoes, and accessories from over 400 brands.
Find out more

ios / android


The app offers easy access to coaching and therapy sessions. It's a part of the platform for employees and focuses on personal wellbeing and professional development.
Find out more
Bamse iOS app - iPhone
Bamse iOS app - iPad



Bamse, the world’s strongest bear, is the most favourite bear of children in Sweden. The application includes the most popular audiobooks, movies, and games.
Find out more
Forbet app for Apple watch
forBET - iPhone app

Legal Bookmakers Award 2019:
1st prize in Best Mobile App category

ios / android


Native app for one of the leading bookmakers in Poland. With forBET users can make sports bets anytime and anywhere. They also can stay up to date with current promotions and upcoming events.
Find out more

Improve your mobile app with us

Already have a product but it doesn’t perform too well? We’ll prepare a detailed audit of your app to see what needs to be optimized. Our team will check which elements require special treatment and recommend changes that should upgrade the app’s performance.

Get a quote

Holdapp has received extremely positive feedback due to the user-friendliness of the app they’ve developed. The team is collaborative, communicative, and diligent. (…) After we published the app that Holdapp has developed, our members have given us extremely high ratings because we have a user-friendly platform.

Victor Bullein Co-Founder & Chief Product Officer, LeggUP


Do you offer an NDA?

Sure. If you want to sign an NDA before we start talking about your project, we’ll send you an online document. Let us know if you need it in an e-mail, and we’ll prepare an NDA immediately.

Do you have experience with e-commerce apps?

Our flagship e-commerce app is Answear. It is an online store with clothes and accessories available on 10 European markets. Our team develops even non-standard e-commerce apps like the one for forBET, a sports betting company.

Have you ever worked with Scandinavian companies?

Our mobile app development company has created several apps for Scandinavian clients, such as Egmont (Bamse) or Universal Music Group (Kiidio). They were released on Danish, Norwegian, Swedish, and Finnish markets. We continuously observe local trends and keep ourselves up to date with Scandinavian mobile app landscape.

How do you work with international teams?

Online meetings and workshops are our standard way of operating. Sweden and Poland are in the same time zone, so scheduling becomes easier. We also use tested management solutions and communication platforms to pass the information quickly and avoid delays. You need to see us in person? If traveling by plane, Stockholm is just 2 hours away from Wrocław.

What billing methods do you offer?

We prefer the time & material billing model. It gives both us and our clients more flexibility. An alternative is a fixed price method. It’s a good option when you want to build a small, simple app with only a few basic features.

Tell us about your project

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