✦  Custom Business Apps

A web application built around how your business actually works

For growing B2B companies that need a simpler way to stay organized, without spreadsheets or unnecessary tools

Works
24/7
Hours saved per year
1,000+
ROI in the first year
100%

Sounds familiar?

Your team runs on spreadsheets and email threads that only confuse people and turn organization into chaos.

Clients keep asking for updates because they have no way to check progress themselves.

Your tools don't talk to each other, so someone spends hours moving data by hand every week.

Built for how your business actually runs

SaaS platforms

A product you can sell, built to onboard users and scale with your customer base.

Client portals

One organized space for every client, so nothing gets lost between emails and messages.

Internal tools

We turn the daily chaos into one system, built to organize, automate, and run your team's work.

Dashboards

See what matters about your business in one place, updated in real time.

Booking systems

Let clients schedule, pay, and confirm without a single message to your team.

Two ways to get there 

Need to launch fast and validate an idea?


We move quickly, using proven building blocks to get a working product in front of real users, so you can test the idea before committing any further.

Need deep scale and complex logic?

We build fully custom, so nothing you need is limited by a platform's constraints and everything is built around your business needs.

How a project actually comes together

1

Discovery and planning

We map how your business actually operates, so the app is built around real workflows.

2

Design

Every screen is designed around what a user needs to do next, not just how it looks.

3

Development

 Built to be reliable and easy to maintain, not just to work on launch day.

4

QA & testing

Every path is tested before your team or your clients ever see it.

5

Launch

We handle the release, so nothing breaks the moment it goes live.

6

Handoff & support

You get a working app and a team that stays reachable after it ships.

Included in every project

Get faster, grow faster

Fast sites are the foundation of every serious online presence. We build them with performance as the first thought, not an afterthought.

Tested before launching

Our QA team tests every aspect across all devices and browsers, so your site launches with no issues

Built to scale

With the right setup, your business grows constantly. That includes tailoring your existing site with the right expansions.

One team for every process

Strategy, development, design, marketing and QA all under one roof, which means fewer handoffs and faster site delivery.

Work that showcases itself

ARK DROPS · HEALTH & WELLNESS

A Swedish brand, refreshed to sell in Serbia

2.4×
store conversion rate
4 weeks
kickoff to launch

We refreshed the brand, moved them to Shopify and built a store people find by asking the right questions.

ATTICO GROUP · REAL ESTATE

Zero to a full property catalog in three languages

174%
organic traffic since launch
5 weeks
kickoff to launch

Their own site in three languages, live in five weeks. Buyers now find them on Google instead of on listing portals.

What our clients say

Feedback from teams who needed more than a good-looking website.

 "From the start, they were highly interactive. We scheduled multiple meetings throughout the process and made real-time changes along the way. They understood our vision clearly and built a page that truly looks and feels like our studio."

Milos Zaric profile image
Milos Zaric
Founder & CEO
no control logo

"The team stayed dedicated and active throughout the entire collaboration. Between online and in-person meetings, we worked through every idea together, exchanged feedback, and applied changes in real time. Visually, technically, and strategically I could not have done it myself."

Luka Petrovski image
Luka Petrovski
Head of Marketing
Shortformviral logo

 "Our cooperation was excellent. Every step, from shaping the concept to finalizing the site, went smoothly and to the satisfaction of both sides. As an architectural team, we are very pleased with the final result, which reflects professionalism and strong visibility and looks organized."

Dragan Marincic image
Dragan Marincic
Founder & CEO
studio m logo image

 "Before Sumprove, every inquiry came through someone else’s platform. They took time to understand our buyers and built a site in three languages around them. Now people find us directly, and years later, they’re still the first team I call about anything on the site."

Milan Hurag
Founder
attico testimonial logo

 "Our Serbian store didn’t look like ARK of Sweden, and it barely sold. Sumprove rebuilt the brand identity and the store, so we finally look as serious online as we are. Customers trust us more, our conversion rate more than doubled, and they’re still our partner today."

David Zivkovic ARK drops
David Zivkovic
CMO
ark drops testimonial logo

 "Most of my clients come through referrals, and before they call, they search my name. They used to find pages other people had built about me. Sumprove understood that from the first meeting. Now our own site comes up first, and they’re the team I rely on for anything online."

Milenko Radovanov
Founder
euro world law testimonial logo

 "From the start, they were highly interactive. We scheduled multiple meetings throughout the process and made real-time changes along the way. They understood our vision clearly and built a page that truly looks and feels like our studio."

Milos Zaric profile image
Milos Zaric
Founder & CEO
no control logo

"The team stayed dedicated and active throughout the entire collaboration. Between online and in-person meetings, we worked through every idea together, exchanged feedback, and applied changes in real time. Visually, technically, and strategically I could not have done it myself."

Luka Petrovski image
Luka Petrovski
Head of Marketing
Shortformviral logo

 "Our cooperation was excellent. Every step, from shaping the concept to finalizing the site, went smoothly and to the satisfaction of both sides. As an architectural team, we are very pleased with the final result, which reflects professionalism and strong visibility and looks organized."

Dragan Marincic image
Dragan Marincic
Founder & CEO
studio m logo image

 "Before Sumprove, every inquiry came through someone else’s platform. They took time to understand our buyers and built a site in three languages around them. Now people find us directly, and years later, they’re still the first team I call about anything on the site."

Milan Hurag
Founder
attico testimonial logo

 "Our Serbian store didn’t look like ARK of Sweden, and it barely sold. Sumprove rebuilt the brand identity and the store, so we finally look as serious online as we are. Customers trust us more, our conversion rate more than doubled, and they’re still our partner today."

David Zivkovic ARK drops
David Zivkovic
CMO
ark drops testimonial logo

 "Most of my clients come through referrals, and before they call, they search my name. They used to find pages other people had built about me. Sumprove understood that from the first meeting. Now our own site comes up first, and they’re the team I rely on for anything online."

Milenko Radovanov
Founder
euro world law testimonial logo

 "From the start, they were highly interactive. We scheduled multiple meetings throughout the process and made real-time changes along the way. They understood our vision clearly and built a page that truly looks and feels like our studio."

Milos Zaric profile image
Milos Zaric
Founder & CEO
no control logo

"The team stayed dedicated and active throughout the entire collaboration. Between online and in-person meetings, we worked through every idea together, exchanged feedback, and applied changes in real time. Visually, technically, and strategically I could not have done it myself."

Luka Petrovski image
Luka Petrovski
Head of Marketing
Shortformviral logo

 "Our cooperation was excellent. Every step, from shaping the concept to finalizing the site, went smoothly and to the satisfaction of both sides. As an architectural team, we are very pleased with the final result, which reflects professionalism and strong visibility and looks organized."

Dragan Marincic image
Dragan Marincic
Founder & CEO
studio m logo image

 "Before Sumprove, every inquiry came through someone else’s platform. They took time to understand our buyers and built a site in three languages around them. Now people find us directly, and years later, they’re still the first team I call about anything on the site."

Milan Hurag
Founder
attico testimonial logo

 "Our Serbian store didn’t look like ARK of Sweden, and it barely sold. Sumprove rebuilt the brand identity and the store, so we finally look as serious online as we are. Customers trust us more, our conversion rate more than doubled, and they’re still our partner today."

David Zivkovic ARK drops
David Zivkovic
CMO
ark drops testimonial logo

 "Most of my clients come through referrals, and before they call, they search my name. They used to find pages other people had built about me. Sumprove understood that from the first meeting. Now our own site comes up first, and they’re the team I rely on for anything online."

Milenko Radovanov
Founder
euro world law testimonial logo

 "From the start, they were highly interactive. We scheduled multiple meetings throughout the process and made real-time changes along the way. They understood our vision clearly and built a page that truly looks and feels like our studio."

Milos Zaric profile image
Milos Zaric
Founder & CEO
no control logo

"The team stayed dedicated and active throughout the entire collaboration. Between online and in-person meetings, we worked through every idea together, exchanged feedback, and applied changes in real time. Visually, technically, and strategically I could not have done it myself."

Luka Petrovski image
Luka Petrovski
Head of Marketing
Shortformviral logo

 "Our cooperation was excellent. Every step, from shaping the concept to finalizing the site, went smoothly and to the satisfaction of both sides. As an architectural team, we are very pleased with the final result, which reflects professionalism and strong visibility and looks organized."

Dragan Marincic image
Dragan Marincic
Founder & CEO
studio m logo image

 "Before Sumprove, every inquiry came through someone else’s platform. They took time to understand our buyers and built a site in three languages around them. Now people find us directly, and years later, they’re still the first team I call about anything on the site."

Milan Hurag
Founder
attico testimonial logo

 "Our Serbian store didn’t look like ARK of Sweden, and it barely sold. Sumprove rebuilt the brand identity and the store, so we finally look as serious online as we are. Customers trust us more, our conversion rate more than doubled, and they’re still our partner today."

David Zivkovic ARK drops
David Zivkovic
CMO
ark drops testimonial logo

 "Most of my clients come through referrals, and before they call, they search my name. They used to find pages other people had built about me. Sumprove understood that from the first meeting. Now our own site comes up first, and they’re the team I rely on for anything online."

Milenko Radovanov euro world law
Milenko Radovanov
Founder
euro world law testimonial logo

Partners in success

"The team stayed dedicated and active throughout the entire collaboration. Between online and in-person meetings, we worked through every idea together, exchanged feedback, and applied changes in real time. Visually, technically, and strategically I could not have done it myself."

Luka Petrovski image
Luka Petrovski
Head of Marketing
Shortformviral logo

"Our cooperation was excellent. Every step, from shaping the concept to finalizing the site, went smoothly and to the satisfaction of both sides. As an architectural team, we are very pleased with the final result, which reflects professionalism and strong visibility and looks organized."

Dragan Marincic image
Dragan Marincic
Founder & CEO
architectural office logo image

 "From the start, they were highly interactive. We scheduled multiple meetings throughout the process and made real-time changes along the way. They understood our vision clearly and built a page that truly looks and feels like our studio."

Milos Zaric profile image
Milos Zaric
Founder & CEO
no control logo

 "Before Sumprove, every inquiry came through someone else’s platform. They took time to understand our buyers and built a site in three languages around them. Now people find us directly, and years later, they’re still the first team I call about anything on the site."

Milan Hurag
Founder, Attico Group
attico testimonial logo

 "Our Serbian store didn’t look like ARK of Sweden, and it barely sold. Sumprove rebuilt the brand identity and the store, so we finally look as serious online as we are. Customers trust us more, our conversion rate more than doubled, and they’re still our partner today."

David Zivkovic ARK drops
David Zivkovic
CMO, ARK of Sweden
ark drops testimonial logo

 "Most of my clients come through referrals, and before they call, they search my name. They used to find pages other people had built about me. Sumprove understood that from the first meeting. Now our own site comes up first, and they’re the team I rely on for anything online."

Milenko Radovanov
Founder, Law Office Radovanov
euro world law testimonial logo

Technologies that get us through

+ additional stacks available on request

Frequently asked questions

How long does a project typically take?


Every web app is different, so timelines depend on scope and complexity. We'll walk you through a realistic estimate on your discovery call.

How do you decide which technology to use for my project?


 It depends on what the app needs to do. If you need to launch fast and test an idea, we use proven building blocks to get a working product in front of real users. If you need deep scale and complex logic, we build fully custom. We'll recommend the right stack on your discovery call, once we understand the scope.

Do you support the app after launch?

Yes. The same team stays reachable after launch for fixes, updates and new features. Once the app is live, you can also move to a monthly Retainer.

What's the difference between a Marketing Website and a Web Application project?

A Marketing Website is your public site. It's built to bring in visitors and turn them into leads, with a CMS your team can update on its own. A Web Application is something people log in to and use every day, like a SaaS platform, a client portal or an internal tool, with user roles, custom logic and integrations. Marketing Websites start from €8,000 and Web Applications from €15,000.

Is my data secure?

Yes. User roles and authentication control who can see and change what, and every path is tested before anyone uses it. On your discovery call, we'll walk you through how your data is stored and protected for your project.

Want to make your website your best marketer?

Tell us about your product and deadlines, and we'll plan the rest and show you what marketing really does.