About us

We are a full-service development, design, and prototyping company founded in Hamburg—operating since 2016. We offer consulting in person on the Balearic Islands, mainland Spain, Washington DC, New York, and Germany.


With the help of innovative digital technology, we can leverage your business model to expand your sales capacity and create new value opportunities.


From building your new website, to the digital optimization of internal processes or more detailed 3D visualization from your inventory/property to the development of an innovative app, accompany our developers and designers every step of the way. 

Individualized PRODUCTS

Tailored to your needs.

How much does a website or app cost?

One website can cost between 2500 and 25.000 Euros. A mobile or desktop App. in between 9000 and 90.000 Euros. Since many of our customers prefer fixed prices to hourly payment, we work with you first on a product plan and procedure. 

 For a more accurate quote range, please see below:

Our price examples* ⬇


A simple homepage

Do you need a clear homepage for your company consisting of an organization description, pictures, and contact form? Nothing easier than that! We can do this for as little as 2750 €**. We would be happy to advise you in person or via video chat on the appropriate design and selection of images. We'll guide you through the whole process.


A more complex online shop with many extras

Digitize inventory or services and increase sales? No problem! We can offer you an online booking system with payment process and automatic appointment or inventory transfer, including homepage, subpages, direct chat as WhatsApp, customer login and SSL certificate for less than €15,000**. If you would also like us to visualize your inventory or your real estate using the latest 3D technology, this amounts to €23,500**, for example.

Simple app

Mobile or desktop application

Would you like to provide your guests with an info & multimedia app at your hotel or restaurant? We can do this for less than €10,000**. Do you think your company could deliver more efficiently with an internal barcode scanner app? We can realize this type of project for as little as €28,500**, even with a larger inventory.

Complex app

Complex algorithm design

Do you have an idea, but are you worried the programming might become too complicated? We are happy to help! With many years of experience in image recognition with artificial intelligence, we can realize especially difficult solutions. For instance, maybe you want to count calories with your mobile phone camera? We would be happy to explain the technical side of such an idea to you in simple terms. Depending on the schedule, implementation can then amount between €50,000 ** and €90,000 **.


The interactive app. Concept without functionality​

If you have an app idea in the early phases and are looking to take first steps before fully committing, we can help. Our UX & UI designers can design your perfect app without functionality. For the design of a simple jogging app. (incl. calorie consumption and GPS route) we would charge e.g. 1900 € **. For a more detailed project like an insurance price comparison app. the costs would amount to 4300€ **.


Example with a more detailed price breakdown

If you need a management app for your hotel it could include: Room allocation, bookings, cleaning plan, guest evaluation, employee plans/staff utilization and infrastructure costs. This would cost about €39,000** to produce. In detail, the project planning would be included for €8,500 **, the app design: €6,500 ** and the iOS or Android app programming for €24,000 **. Our portfolio also includes NFT & stock management apps.

* The above examples are inspired by real projects with our customers.

** Prices do not include VAT


For more informations
or a free initial consultation:

Europe office:


Gssns GmbH
Grindelallee 21
20146 Hamburg
CEO: Pedro Mayoral Picazo
HRB No.: 142121
District Court of Hamburg
VAT ID number: DE 306837202

US office:


Atro Design LLC. 

760 Pequot Ave
New London, Connecticut 06320