UDT Exam Tests — from zero to 10,000+ users
UDT Exam Tests — is a mobile application that I developed from scratch for the Polish company Operator Szkolenia, which specializes in training and preparation for UDT technical exams.
Task
The client approached with a specific request: to create a simple, user-friendly, effective mobile tool that would allow their students to prepare for the certification exam without the need for paper materials or third-party websites.
Solution
I independently designed and implemented the application on Flutter, adapted for Android and iOS. It allows:
Taking tests by categories
Analyzing results
Tracking preparation progress
The application is fully branded for the client, contains an official question database, and works offline.
Results
Published in Google Play and App Store
Over 10,000 downloads
High user engagement
Hundreds of positive reviews
Daily use by students of Operator Szkolenia company
Task
The client approached with a specific request: to create a simple, user-friendly, effective mobile tool that would allow their students to prepare for the certification exam without the need for paper materials or third-party websites.
Solution
I independently designed and implemented the application on Flutter, adapted for Android and iOS. It allows:
Taking tests by categories
Analyzing results
Tracking preparation progress
The application is fully branded for the client, contains an official question database, and works offline.
Results
Published in Google Play and App Store
Over 10,000 downloads
High user engagement
Hundreds of positive reviews
Daily use by students of Operator Szkolenia company
Kyiv 
Available for hire
Offer work