Looking for a full-service development agency where quality, drive and transparency are top priorities? Then you've come to the right place at DTT.
With an app, everything becomes possible, easy, and literally at your fingertips. From ordering, listening to music, chatting, staying healthy, banking to checking the weather. Developing an app is the solution to optimally serve various target groups with diverse needs. This makes apps a valuable tool for freelancers, SMEs, non-profits, NGOs, as well as multinationals and government institutions. As a seasoned app developer, DTT knows exactly how to build effective and user-friendly apps for a wide range of clients: apps that grow alongside new ambitions and future developments.
Discover how we can help you:
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Success factors for app development
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The benefits of good app design
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Developing a user-friendly and effective app
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A look at our app development portfolio
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High-quality app development
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Frequently asked questions about app development
5 success factors for app development
The bar for developing a mobile app is set high. Users expect to swipe and click intuitively toward their goal, effortlessly and without much thought. When developing an app, there are several crucial factors to consider:
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Beautiful design that matches the brand and the target audience.
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Smart functionalities that directly contribute to achieving the goal.
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Convincing customer journeys for diverse users and needs.
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User-friendly and intuitive navigation with guiding calls to action.
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Reliable techniques and tools that evolve with new developments.
The benefits of good app design
A well-designed app is not only visually appealing but also easy to use. With an intuitive design, users can navigate effortlessly and accomplish their goals without interruptions or having to think about controls. This design focuses on what matters, ensuring a smooth experience. The simpler the app, the more frequently people will use it. If the design is unclear or confusing, it disrupts the user experience, leading to potential drop-off.
Our team of experienced UI app designers and UX app designers collaborates closely with you throughout the entire design process. We blend your vision with our deep understanding of user needs and expectations, creating an app that not only meets your requirements but also perfectly aligns with the end-user experience. With streamlined communication, we ensure an efficient process. Once the design is approved, we proceed with app development.
Developing a user-friendly and effective app
At DTT, we focus on developing an app that is both user-friendly and effective, guided by the aforementioned success factors. We divide the development process into clear steps to efficiently and purposefully work toward the desired result.
1. Defining goals and strategy
Together, we determine which functionalities directly contribute to achieving the primary objectives, then create a concept in a functional design: an interactive prototype.
2. Independent technical advice
From Flutter apps, Progressive Web Apps, Native Apps to Hybrid Apps. We have the expertise to effectively use well-tested techniques. Together, we decide on the best technology for app development.
3. Developing an MVP app first
Initially, we develop an app that can immediately be used to achieve the primary goal, commonly known as an MVP or Minimum Viable Product. From this strong foundation, an enriched version 2.0 or 3.0 can be developed.
4. Testing and optimizing the app
With usability testing and analytics, we identify which adjustments can boost the user experience towards our goals, enabling informed decisions for app optimization and development.
5. Providing continuous support
As a strategic partner and specialist, we keep the app up-to-date and offer managed hosting with a 99.99% uptime guarantee. We train your team and help engage the target audience to maximize app results.
From initial brainstorming sessions, app development, to continuous support: as your app developer and strategic partner, we are here to help you get the most out of app development.
A look at our app development portfolio
As a digital agency, we are a versatile team of experts in web, game, and app development, combining the best of the digital world into effective apps. We help diverse clients achieve varied goals and reach a broad audience.
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Fun rewards for swiping green thumbs. An enriched customer experience and more loyal customers for Famiflora. The loyalty app we developed is rated 4.8 stars in the app stores.
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King Penguin makes protecting the Antarctic Ocean a winning game. We helped Greenpeace raise awareness for the Antarctic Ocean in a playful way with a unique Augmented Reality app.
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Bringing book lovers together in a modern book club. For the Hebban book community, we developed a beautiful community app, complete with digital bookshelves.
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A smooth ordering process you can breeze through. For Kruitbosch – and its partners in the Netherlands, Belgium, and Germany – we developed a convenient ordering app.
Discover more clients we've built apps for.
High-quality app development
At DTT, we work with a diverse range of clients, and that’s our strength. With over 60 dedicated professionals in the heart of Amsterdam, we deliver various projects every day, whether for small or large companies, always focusing on quality and results.
Do you have a great idea for an app and are you looking for an app developer? We would love to meet with you for a no-obligation discussion. During this meeting, we’ll talk about your ideas and goals. If our team has concerns about the concept, we will discuss it openly and explore possible improvements together.
Our office is located right behind the Dam Square in Amsterdam, and we warmly invite you to discuss your app idea with us at our office. With our experience as an app developer, we’ll quickly be able to identify the true potential of your app idea.
Ready to take the next step? Get in contact with app developer DTT today.


Bringing a global team together for the 60th anniversary
Randstad the Stories
Bringing a global team together for the 60th anniversary


Quick and easy ordering with this user-friendly loyalty app
Spare Rib Express
Quick and easy ordering with this user-friendly loyalty app
Accessible psychological support for everyone
OpenUp
Accessible psychological support for everyone

Levi
Technical director
From the first conversation, we collaborate together with you to create digital opportunities in your field of work.
From the first conversation, we collaborate together with you to create digital opportunities in your field of work.


Fernandes for a new generation.
Fernandes Community Game
Fernandes for a new generation.

Greenpeace protects Antarctic Sea with Augmented Reality
King Penguin
Greenpeace protects Antarctic Sea with Augmented Reality

Manage air traffic control in this innovative game
Take Control of the Tower
Manage air traffic control in this innovative game

Mickey
Commercial director
Together, we build a compelling digital experience to excite your target audience.
Together, we build a compelling digital experience to excite your target audience.


Playful learning for children with dyslexia and dyscalculia
Tom's Wereld
Playful learning for children with dyslexia and dyscalculia

Serious topic for a serious game in >8,000 classrooms
MediaMasters Serious Game
Serious topic for a serious game in >8,000 classrooms

Fighting litter together
Operatie Z.U.I.V.E.R.
Fighting litter together

Anastasia
Lead UI/UX designer
We create solutions full of creativity: engaging and challenging, with focus on a playful experience.
We create solutions full of creativity: engaging and challenging, with focus on a playful experience.

Tailored advice for a healthy canteen
The Canteen scan
Tailored advice for a healthy canteen

Offering playful insight into the world of logistics
ROC smart logistics
Offering playful insight into the world of logistics


Scientific well-being research with a customized app
Zo Erg Nog Niet
Scientific well-being research with a customized app

Mickey
Commercial director
Within fixed frameworks, we find opportunities for creativity, innovation and an effective digital experience.
Within fixed frameworks, we find opportunities for creativity, innovation and an effective digital experience.

Exploring the solar system with Virtual Reality
Fly Me to The Stars VR
Exploring the solar system with Virtual Reality

The exciting game through which aspiring MBO students find their ideal education
OntdekMBO Serious Game
The exciting game through which aspiring MBO students find their ideal education

Greenpeace protects Antarctic Sea with Augmented Reality
King Penguin
Greenpeace protects Antarctic Sea with Augmented Reality

Ian
Lead game team
Serious games are perfect for a digital experience with lots of depth and interaction.
Serious games are perfect for a digital experience with lots of depth and interaction.

Joost
New business manager
An app is a great tool to bring users together in a close-knit community.
An app is a great tool to bring users together in a close-knit community.

A luxurious high-end app for the best restaurants in Amsterdam
Elizabeth on Food
A luxurious high-end app for the best restaurants in Amsterdam


All-in-one health platform packed with personalized advice
Chi Lifestyle
All-in-one health platform packed with personalized advice


Fitness community for a better world
MANA
Fitness community for a better world

Thijs
UI/UX Designer
Apps and websites are a powerful tool to make vitality more fun and personalized.
Apps and websites are a powerful tool to make vitality more fun and personalized.


HR workshops for the entire team in a scalable B2B e-learning game
Anders denken
HR workshops for the entire team in a scalable B2B e-learning game


The support program for students, now also as an app
Slim Academy
The support program for students, now also as an app

Chamber of Commerce helps entrepreneurs with import missions via e-learning
KVK Import e-learning
Chamber of Commerce helps entrepreneurs with import missions via e-learning

Anastasia
Lead UI/UX designer
From HR workshops to vocational education, e-learning is effective for diverse of audiences.
From HR workshops to vocational education, e-learning is effective for diverse of audiences.

A global webshop for HG's products and promotions
HG webshop
A global webshop for HG's products and promotions


Bringing a global team together for the 60th anniversary
Randstad the Stories
Bringing a global team together for the 60th anniversary


Global metal trading platform for sustainability
World Metal Exchange
Global metal trading platform for sustainability

Michel
Operations Director
The requirements of multinationals perfectly align with our approach to projects.
The requirements of multinationals perfectly align with our approach to projects.

Greenpeace protects Antarctic Sea with Augmented Reality
King Penguin
Greenpeace protects Antarctic Sea with Augmented Reality

Regional products via an app - a hit in app stores and national press
Lekkerder bij de boer
Regional products via an app - a hit in app stores and national press

A sustainable solution for a safe road network
RTRI
A sustainable solution for a safe road network

Caroline
Project Manager
Inform, motivate or provide a new perspective: digital solutions and sustainable efforts empower each other.
Inform, motivate or provide a new perspective: digital solutions and sustainable efforts empower each other.

A luxurious high-end app for the best restaurants in Amsterdam
Elizabeth on Food
A luxurious high-end app for the best restaurants in Amsterdam


The world's leading app for birth support
Doula
The world's leading app for birth support

Play the ultimate word game with >300,000 downloads
Wordcrex
Play the ultimate word game with >300,000 downloads

Edward
Senior Flutter developer
Data driven from the get-go, with a sharp focus on growth in the right direction.
Data driven from the get-go, with a sharp focus on growth in the right direction.
Frequently asked questions about app development
How expensive is it to have an app developed?
The price to have an app created depends on several factors, including:
The desired functionalities The techniques used Opportunities to reuse DTT's existing projects. Want to know more about the costs involved in making an app? Also read our article: How much does an app cost?
What does it take to develop an app?
With our DTT preliminary process, we work together from idea and objective to a concrete solution and digital strategy:
1. Concept and strategy: together, we zoom in on the desired solution and objectives. 2. Research and design: in co-creation, we combine our knowledge and experience. Together, we come up with a solution that meets the set objectives. 3. Calculation and phasing: we make the required investment concrete with a budget based on an open calculation. 4. Start of development: once the budget is approved, the development work is started.
What does an app developer do?
An app developer helps you realise your app idea. With our Doing Things Together step-by-step plan, we work together from idea and objective to a concrete solution and digital strategy. Step by step, we work together towards an effective solution that helps your organisation move forward. Solidly designed and with an eye to the future. This allows you to move along in the vanguard and at the same time ensures that your solution will still be running just as well in a few years' time.
DTT can help you develop apps for iOS, Android and web apps, among others. DTT is an app builder with extensive experience in developing high-quality apps.
How long does it take to develop an application?
It depends on the desired functionalities and the size of the app. Typically, creating an app takes between 2 to 6 months. At DTT, we work in development sprints of two weeks, in which we work towards a tangible delivery. In this way, we provide insight into the progress and enable you to make interim adjustments based on new insights.
Discuss your ideas, wishes or challenges during an informal meeting. We will answer your most important questions and help you come up with a suitable concept for an effective app. Feel free to contact us.

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