Maryanne is an application for reading and listening to digital books and documents. It supports EPUB and PDF formats and includes a text to speech feature using natural voices in over 30 languages. Users can read files they already own, as the app does not require a store catalog. Maryanne is available across mobile, web, desktop, and Linux platforms, with installation options such as the Snap Store and AUR packages. The app provides several reading and listening capabilities, including adjustable playback speed, a follow-along text display, a sleep timer, and resume functionality. Users can choose from streaming cloud voices or download offline voices for listening without an internet connection. The app also includes access to tens of thousands of free classics and supports unlimited reading, listening, and file storage for personal documents. Typical use cases include reading personal EPUB and PDF collections, listening to books during commutes or other activities, and switching between reading and listening across devices. The standard workflow involves opening a file, selecting a voice, and adjusting speed or enabling the sleep timer as needed. Pricing plans include a free tier, a subscription, and a lifetime option, with features that may vary by platform, region, and file type.