I have contributed to OpenKeychain (an OpenPGP implementation for Android).
I have added Ukrainian localization to this project.
Ukrainian localization is available at version 4.5 released on 26 of July 2017.
OpenKeychain is an open-source application designed to bring secure communication to Android devices through the implementation of OpenPGP encryption standards. By enabling users to encrypt, decrypt, and sign data such as emails and files, OpenKeychain ensures both privacy and authenticity in digital communication. This app is user-friendly, highly customizable, and suitable for individuals or organizations aiming to maintain security and confidentiality in their digital exchanges.