Creative Code Lab 3 (WS 2025)

At the end of the winter semester 2025, the students had two weeks to apply what they had learned throughout the course to the development of their own mobile apps. Working in teams of two, they implemented their ideas as native Android applications using Kotlin. They refined their apps based on feedback from usability and user testing and finally presented their results at the end of the Lab. Following this intensive effort, the students proudly showcased their creative and functional apps. A selection of these projects is presented here, highlighting the skills they acquired.

Chromatic HarpTabs

Developed by Abiodun Adefusi & Joshua Tjhie

Chromatic HarpTabs is a focused application for collecting, viewing, and practising chromatic harmonica tabs. It provides a structured tab library with consistent notation for blow, draw, and slide use and a practice mode designed for active playing. In addition to reading tabs, users can preview notes directly in the app using a virtual harmonica, allowing them to hear what passages should sound like before playing them on a real instrument. The app relies on clarity, quick access, and practice-oriented interaction rather than passive browsing.

Install the app on your Android device: ChromaticHarpTabs.apk (18.4 MB)

Snorly

Developed by Lukas Pesendorfer & Laurens Tuerk 

Snorly is a smart sleep tracker and alarm clock app designed to help users wake up more easily and improve their sleeping habits. The app tracks sleep duration and quality during the night and presents the data in a simple and easy-to-understand way. To prevent users from oversleeping, Snorly uses interactive puzzles that must be solved to turn off the alarm. These puzzles help wake up the brain and make sure the user is fully awake before the alarm stops. Snorly is designed for students and busy people who struggle to wake up on time and want to build healthier sleep routines.

Install the app on your Android device: Snorly.apk (64 MB)

Periodt.

Developed by Angelina Hess & Diana Ivanova

Periodt. is a period tracker app that helps women track their mood and health throughout and around their period. It helps them understand their cycles better. Within the app, users are able to: track their cycle stage; log any symptoms or other activities within the app; see their logs and cycle stages within a calendar view; and see predictions for future periods.

Install the app on your Android device: Periodt.apk (12.1 MB)

AR Build Studio

Developed by Livia Gaind & Emil Größinger

AR Build Studio is a workspace where users can prototype spatial designs by scanning a surface and using virtual blocks in augmented reality. Users can save their builds as well as reopen and edit them. AR Build Studio enables spatial prototyping and professional planning in AR. Users, like creative individuals and planners, or professionals and designers can scan real-world surfaces such as tables, floors, or counters and place, move, and arrange using virtual blocks to plan and build layouts, design spaces, and visualise concepts before implementing them.

Install the app on your Android device: arbuildstudio.apk (78.7 MB)

Honourable Mentions

The applications created during CCL-3 were diverse, and many more would deserve recognition. A few examples include an all-in-one digital library manager and e-reader, an authentication app, a gamified workout tracking app, and a 4-in-1 wellbeing tracking app.