Martinus

Read e-books and listen to audiobooks wherever you are

Don't miss out on a book opportunity anymore - with the Martinus app you can read e-books, listen to audiobooks and play your favorite Martinus Book Cipher anytime, anywhere :-)

✅ Unlock the legend! The Book Cipher game is back after years. Every weekday during June 2026, discover new book puzzles directly in the Martinus app and play for plane tickets, a suitcase full of books and other great prizes.

✅ Turn your mobile or tablet into a book. Just choose the right one from your library on Martinus.sk and you can start reading it right away. You can read even without an internet connection!

✅ Do you listen to audiobooks? You can listen to those purchased on Martinus.sk directly from the app

✅ In bed or on the beach? It doesn't matter where and how you read, you can customize the app so that you can focus on what matters most - your book.

✅ Highlight important passages or ideas in your book that you don't want to forget. You can also use bookmarks to mark pages or places in an audiobook that you want to return to.

✅ A textbook from school or an e-book that you bought elsewhere? Save them and read them with us! We support all e-books in EPUB and PDF formats.