Tracking baby’s
health and growth

Mobile mockup of the baby app


HaloBeba is a support center for early child care run by health institutions and UNICEF in Serbia. They are a trusted advisor to parents across the country. For over 15 years, their team of doctors and nurses has been answering parents' questions through a 24/7 call center.

HaloBeba wanted to extend support to parents by providing them with everyday tools and resources. The solution was a mobile app with curated articles and tools for tracking baby's growth and health.

My role

In a UX team of two at Alpha Design Studio, I was in charge of a variety of areas—from information architecture and user flows, to UI design, prototyping ,and handing off the design to developers.

The product lead (Milovan Jovičić) was responsible for product strategy and communication with stakeholders.

From concepts to details

I joined the project when low-fidelity wireframes were ready to evolve into a more refined design. Designing clear information architecture and user flows helped make conceptual ideas tangible.

We envisioned personas in guerilla fashion, based on friends and family who were new parents. This helped keep users front of mind.

Whiteboard sketches of information architecture

Sketching on the whiteboard helps map and reshuffle the content as needed

User flow diagram

A user flow helps us identify the actions and paths people can take in the app

Managing constraints

In 1- to 2-week sprints, I worked on high-fidelity prototypes to validate designs with the client's domain experts. A polished interface helped stakeholders share actionable feedback.

With limited capacity to test with users, the product lead and I created usability testing guidelines and in-app survey templates so the client can gather feedback in the future.

Crafting UI Patterns

The app was to be launched on both iOS and Android. With resource constraints, I worked on only one version of the UI, keeping the interface simple so it can be easily adapted to different platforms.

Preview of UI components

Components from a UI kit helped me create UI patterns quickly.

As the UI evolved, I created a pattern library to keep the user experience consistent and make developers' work easier.

Pattern library: color sectionPattern library: typography section

Hand-off and final touches

Preparing the hand-off to developers, I documented the work with prototypes, flowcharts, and feature descriptions.

Preview of a flowchart

Flowchart showing all elements on a screen and their interaction

After the project was over, I kept polishing the design as a side project. The process (including translating content to English) was a fun exercise. The designs you're seeing here are my personal work.

Screenshots of client's website

Client’s website was soon overhauled, and in my personal project, I tried to adapt the app's visual language to the new website.

Diversity & inclusion: it's a learning journey

The baby journal is a part of the app where parents can track baby's growth. Initially, our team designed 'red flag' states which show up when baby’s data diverges from average values. However, feedback from domain experts reminded us that each baby's growth is unique, and that this pattern may cause anxiety. It seems obvious in hindsight, but it just shows how easy it is to get wrapped up in our bubble and how essential is to test designs. In the next iteration, the goal was to gently signal if the data goes significantly far from average.

Illustration of growth states before and after changes, with and without growth alerts

In the final design, I went a step further, not evaluating the pace of growth at all. Instead, I focused on whether the data for a particular period was missing or up to date, which seemed more useful.

Illustration of final growth states

Final design

Baby journal

Mockups of baby journal sections: Doctor's visits, Growth, Vaccines and Development milestones

Through the bottom bar, users navigate the entire app. Top bar allows navigation inside the baby journal.


Mockups of article sections

When baby reaches an age of important changes, custom articles show on top with handy advice.

Breadcrumbs help people find their way arond easily when they’re reading and exploring articles.

When baby reaches an age of big changes, the feed includes curated articles with age-specific advice.

Breadcrumbs help parents navigate back and forth between browsing and reading articles.


Want to check out the ins and outs of the app?

Open prototype


Launched in 2020, the app supported parents through the pandemic with accessible tools and resources. And after years of being on the front lines of parents' urgent concerns, HaloBeba ventured into providing preventative support.

Lessons learned

This project was a good learning experience in managing constraints around user testing. Nothing beats testing directly with users. As a second best, feedback from domain experts was a valuable proxy, while in-app polls and testing guidelines equipped the client with testing resources for the future.

Doing the final design on my own was a way to apply what I learned in Learn UI Design—really helpful in developing my craft.

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