Infinity Library


Infinity Library - Book exchanging mobile app

My Role

UI/UX Designer

Front End Developer


Eötvös Loránd University


.APK Github


December 2022


Infinity Library acts as a virtual marketplace, allowing users to easily trade books with one another. Simply search for the book you're looking for, or list one you'd like to sell. Created with user-friendly interface and secure payment system, buying and selling books has never been easier.

This app is built for Eötvös Loránd University's subject course in 2022.


The .apk released built for Android can be downloaded here . Code are public at Github


We design a simple, mordern light themed interface for the app

The app has 4 main screens, one main screen for displaying all books currently available on the marketplace, one screen for a details view of the book, one for user to create a new book through a form inputs and a screen for user profile.


> Display books on marketplace:

Present books with its related information, combine with sorting, filtering and searching feature.

> List a new book:

Put a book for sale on the platform with the easy to use form interface.

Tech Stacks:

Front End:

> Expo

> React-Native

> Typescript

Back End:

> FastAPI

> PostgreSQL

> Redis


> Figma

> Docker

> Github Actions