TruckIT Viewer

Threema is the world’s best-selling secure messenger, used by more than 12 million people in over 175 countries, developed in Switzerland, and designed with privacy and data protection in mind.

Edit PDF files right on your phone — add or change text and images, merge, split, compress, e-sign and scan documents in seconds.

Blue Mail is an email aggregator that consolidates multiple mailboxes from different providers in a single application with support for IMAP/POP3/Exchange and push notifications, though it frequently experiences stability issues after updates.

Moon+ Reader is a feature-rich e-book and document reader with extensive customization options for fonts, themes, and gestures, supporting 30+ file formats. It works stably for most users but has interface issues, synchronization problems, and occasional display bugs.

On GitHub, you can do much without a complex development environment—for example, share feedback on design discussions or review lines of code.

Book lovers!

A simple and fast notes app with autosave, color themes, and fingerprint protection, but without cloud sync and text editing features.

Multi-format reader for e-books, documents and comics with text-to-speech support, highlighting and flexible display settings. Frequently crashes during updates with text narration issues.