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Probig

Your personal fitness journey, simplified. Join online marathons, build healthy habits, get daily motivation from experts, and track your progress all in one place.

Running
PWA
STRAVA API
UA FlagUA
Probig cover image

Overview

Probig is a mobile application for a local running club Probig that gives athletes instant access to their schedules and performance data while the web-based coach platform serves for simplified communication and performance tracking.

Challenges

01/

Training data lost in endless Excel sheets and email chains

02/

Coaches struggling to reach athletes, progress updates getting lost

03/

Hours wasted on administrative tasks instead of actual coaching

04/

Legacy tools that don't work on mobile or support modern features

Propbig explanations interface

Solutions

Experience your future home before you buy, get professional design included, and shop for everything from one platform - because buying a home should be exciting, not exhausting.

[01]

Centralized dashboard

All user data, training plans, and progress in one place


[02]

Seamless communication

Direct messaging between coaches and athletes with progress sharing


[03]

Smart calendar

Never miss another training session or club event


[04]

Real-time progress tracking

Watch your entire club's improvement unfold in beautiful, easy-to-read formats


[05]

Mobile-first design

Full functionality on any device, anywhere, anytime

Probig interface showcase

Why clients love Probig

"
I remember my torments choosing a running club. I remember that inner relief when I called PROBIG. This is a superb project, destined only for success, I'm convinced.
Natalia

"
ProBig is not just a club, it's about love, about support, about victory over your laziness and not only!
Marichka

"
Objectively and subjectively, this turned out to be the best sports club I've ever seen, and I've seen many during my amateur career.
Markiyan

Whether you're coaching five runners or managing a whole club, Probig helps you stay organized, connected, and focused on what matters. Follow Probig on Instagram to see the community in action.

Technology stack

Frontend

React library for fast and modular UI development
MUI design system for consistent and accessible interfaces

Backend

Probig API as the core service layer for data and business logic
.NET with Clean Architecture, CQRS + MediatR, unit tests, and OpenAPI for maintainable and well-documented development
SQL Database for structured and reliable data storage
SendGrid for transactional and automated email delivery
DigitalOcean for scalable and cost-efficient cloud infrastructure
Running photo 1
Running photo 2
Running photo 3

Built by runners, for runners

What makes our work on Probig stand out is that we don’t just code it — we live it. Our team uses the platform for every run, every gym session, and every corporate challenge.

We’re not just creating a product — we’re using it in our own lives. This gives us insights that go beyond traditional development, helping us build a platform that truly works.

Meet Orysia —

our close friend, partner, and the person who taught us never to give up.

For us, she is a symbol of unbroken spirit and inner strength. The war took a lot from Orysia, but it could not break her determination and drive to do good. Today, using her athletic mindset and expertise, she is doing tremendous social work, focused on helping veterans.

Orysia organizes numerous programs in Lviv for the physical and mental rehabilitation of servicemen and women, supporting people in tough situations and inspiring everyone with her unwavering example.

Check her page on Instagram

PGT Instagram
Orysia with Mia and Markiyan

Her motto from professional sports,

Дзуськи, не дамся!

(meaning, "Damn it, I won't give up"), long ago became a life principle that is now our small team joke and a core principle: fight, win, grow.

Inspired by Probig?

Let’s build something great for your team together.

Contact us

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Probig | Case Study | Proga Tech