Evolving Ideas into High Quality Products


Being a strong and reliable partner, CoreLine has dedication and expertise to breathe life into your ideas and create compelling digital experiences.


CoreLine’s core business is developing mobile apps, static microsites, e-shops, complete information systems, accessible to your potential customers, with a content management interface that will make your website or mobile app easily manageable.


CoreLine balances their work between various industries from social media, travel, sport & fitness and retail.

$50 - $99 / hr
10 - 49
Show all +
Zagreb, Croatia


Key clients: 
Born.com, A1, Bazeat, Nabava.net, Insync, Croatian Olympic committee, Frazzle, Croatian Handball Federation, Vibby, Mravinjak, Renova, GuideFinder, Plamegal Trio, Kemoplastika
Insync Image


Insync utilises online platforms to make business and Landlord insurance modern, simple and easy. We're building over 15 fully-digital insurtech platforms using React.js, Node.js and Google Firebase.

Born Image


BORN is the world's largest digital trade fair for design-led lifestyle products. We exist to give you the platform and audience to launch your products and tell the world your brand story. The site connects people who make beautiful products with those who love them. For our audience, beauty comes in many different forms across many categories, but no matter the style, it’s about perfection and innovation where design meets

functionality. Never form over function or function over form – we want to showcase your products and stories to the world.

Born technology stack contains modern and popular tools. Frontend part of the app is developed with React.js which is server-rendered using Next.js. A backend is written in Node.js while the app data is stored in Postgresql database. 


Nabava.net Image


We have been in charge of redesigning and developing the product.

Enjoy the app and find the best prices for your desired product.

Available in the App Store and Play Store.

Bazeat Image


Bazeat makes it possible for a small producer to reach a big market and makes it possible for everyone to buy food in a new and provident way.

CoreLine developed a portal for finding food producers near your current location. With this food portal, users have the opportunity to create their profiles, showcase their products and organize transportation.

A1 - Internal System Image

A1 - Internal System

A1 Hrvatska is part of A1 Telekom Austria Group – the leading provider of digital services and communication solutions in Central and Eastern Europe.

CoreLine developed an internal system for A1 sales team. The system helps in tracking sales data and provides an interface for generating reports.

Since A1 is a world leader in telecommunications, we implemented high-security protocols

to keep the data safe.


Sportever Image


Sportever connects you with playpals of the same skill level in your area. Effortlessly plan a match, compete in your favorite sport and boost your motivation by completing missions and winning rewards!

Sportever lets you plan a relaxing friendly match or a hi-energy competitive match. Users can compete in tennis, squash, badminton, golf, table tennis and soon in many more.


CoreLine built React Native

Freewa Image


Freewa is a mobile app for mapping free drinking water locations worldwide. Users can find nearest water locations on the map, provide feedback about their quality and also add new springs and therefore contribute to the project.

CoreLine built the application for IOS and Android using React Native technology.


Croatian Olympic committee photo manager Image

Croatian Olympic committee photo manager

Photo manager is a web for managing images of Croatian Olympic athletes. App users are employers of Croatian Olympic committee. They can insert, crop, resize and describe the image.

Also, web application supports full-text search and filtering over image properties.

The initial set of 30 000 images was inserted in the database by our smart system which uses face recognition.

The app was built with

React.js on frontend and Node.js with Postgres DB on the backend. Images are stored on AWS S3, and system for image insertion with automatic face recognition was developed in Python.
Frazzle Image


Frazzle is a gamified app that leverages an algorithm to reach hundreds of thousands of consumers based on their location in real time, offering clients a unique digital marketing play with quantifiable results. The application provides dispensaries, manufacturers, and retailers of cannabis paraphernalia and apparel, cannabis industry service providers, cannabis seed providers, media houses, cultivation equipment manufacturers

and entertainers; with a medium to advertise their brand and products to millions of people all over the world that embrace and share the cannabis culture.

Frazzle is built as a native mobile app with node.js on the backend and DynamoDB. The system runs on AWS Lambda.

Mravinjak Image


Portal for finding jobs and building career paths in Croatia and neighboring states.
Users create their profiles, solve case studies and exams, and they can apply to jobs. Employers can look through applied candidates and contact candidates for onsite interview. There are a couple of different employer profiles, based on paid plan.

Mravinjak is built using Node.js and Angular framework. The system runs on AWS EC2

instances, and the database is Postgres RDS instance.
TMatix Onboarding Image

TMatix Onboarding

TMatix Onboarding is an internal company tool used for adding relations between clusters of Internet Of Things sensors. As both sensors and clusters of sensors are arranged in a tree-like structure, the identical self-referencing structure is used for both. Mobile app supports up to five levels of sensors/clusters (building, floor, section, subsection, sensor). As the device’s unique name can be tedious to type, in-app QR

scanner can be used for scanning the names of devices in the last two levels (subsection and sensor).

The app was developed for Android and iOS platform using React Native.

MCI insurances Image

MCI insurances

Web application for generating and managing insurance offers.

It enables real estates manager to log in, pick the wanted insurance package and request an offer. Offers can be transformed to PDF and then signed both by the insurance company and ensured party. Admins then process that request and close the deal.

Node.js was used for the backend side of the app, while React.js was used for the frontend side of the

Renova property consultants Image

Renova property consultants

System for managing real estates in Renova property consultants company.

Each property can be manually added through insert form or via Excel importer.

Users can search, filter and sort all properties. Properties can be exported into automatically generated and designed offer document (PDF, XLSX or PPT).

Renova administration system is written in Node.js and running on DigitalOcean. Web frontend is built

using Angular framework.


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UX/UI & Web Dev for Digital Agency

“I have only good things to say about our collaboration.”

Willing to refer: 
The Project
$50,000 to $199,999
Sept. 2016 - Sept. 2017
Project summary: 

CoreLine worked on the web development for a web application. Their scope was frontend and backend development, infrastructure setup, and testing, including prototyping.

The Reviewer
1-10 Employees
Zagreb, Croatia
Leo Jagust
CEO, Enfluar
The Review
Feedback summary: 

The site was delivered with the specifications as directed and is functional and in use. Effective and professional, the team communicated well throughout the project and completed the work within deadlines. CoreLine added another successful project to their list.

A Clutch analyst personally interviewed this client over the phone. Below is an edited transcript.


Introduce your business and what you do there.

I am the CEO of Enfluar. We are a digital agency with a primary focus on social media and creation of websites, both presentational and functional web applications.


What challenge were you trying to address with CoreLine?

We were working for Renova property consultants, and our agency needed help with web development for a web application with the main goal to organize properties for client's internal use.


What was the scope of their involvement?

They worked on the functional part of frontend development and developed the backend which included infrastructure setup. They used AngularJS and MongoDB, Amazon Service for the storage of images, and DigitalOcean servers for the application’s basic operations.

We were mainly responsible for User Experience design, but there was collaboration with CoreLine in project definition, involvement in prototyping and testing of the concept. Additionally, we worked on User Interface design, art direction, the visual part of frontend development, and Project Management.

Frontend development was done by both parties. We mainly used HTML5, CSS, while CoreLine took care of more of the functional side, such as JavaScript and the whole web app part.

What is the team dynamic?

We mostly worked with Dominik [CEO, CoreLine].

How did you come to work with CoreLine?

We knew each other as friends, but I knew that Dominik had worked on successful projects.

How much have you invested in them?

We spent around $50,000 on the overall project.

What is the status of this engagement?

We began working together in September of last year, and the project concluded this past September in 2017.


What evidence can you share that demonstrates the impact of the engagement?

We are currently going through some final testing, but it is functional and running on the client’s servers.

How did CoreLine perform from a project management standpoint?

Everything went according to schedule. There were some delays when the client didn’t approve things on time, but other than that, everything went well during the collaboration. We mostly used email for all official things, and for detail specific things we used Slack. We also used Bitbucket, Hangouts, and WhatsApp.

What did you find most impressive about them?

I have only good things to say about our collaboration. They are professional, they do their job, and I would recommend them to anyone.

Are there any areas they could improve?

No. All aspects of the project were well done.

Do you have any advice for potential customers?

There are both sides to a collaboration, and it is not only CoreLine who takes care of the whole project. There are points of approval which clients should take seriously, but when the client approves everything on time, there are no issues.

Overall Score
  • 5.0 Scheduling
  • 4.5 Cost
    Value / within estimates
  • 4.5 Quality
    Service & deliverables
  • 5.0 NPS
    Willing to refer

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Business Entity
Business Entity Name
CoreLine d.o.o.
Jurisdiction of Formation
Date of Formation
Oct 16, 2017
Last updated
Sep 19, 2020
Payment & Legal Filings
International Credit Risk Assessment

Per our methodology, the International Credit Risk Assessment rating is determined by our analysis of a credit report and third-party data.

Very Low Risk
Last updated
Sep 19, 2020
Client Reviews
September 17, 2020