Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)

Small portable AES128/192/256 in C

A complete set of functions to read and write H.264 video bitstreams, in particular to examine or modify headers.

wild keccak miner

iOS & Android Local/Push Notification support for Qt 5 API

Calling Android functions from Qt without using JNI

Convenient unified display of the most relevant technical and tag data for video and audio files.

Style and Grammar Checker for 25+ Languages

Platform-independent Qt API for storing passwords securely.

TLS/SSL and crypto library

SpellChecker Plugin for Qt Creator