Depression CBT Self-Help Guide (Android) - contains a depression severity test, audios, articles, a cognitive diary, and a motivational points system that help you learn how to do this.
Cognitive Diary CBT (Android) - The self-help methods used in this app are based on the tools of cognitive-behavioral therapy (CBT) and challenge irrational thinking.
MoodTools (iPhone, Android) - a free, convenient, and easy-to-use app that provides six evidence-based tools to aid against clinical depression and negative moods on a large scale. MoodTools is perfect either as a self-help tool or as a supplement to treatment. It contains the following tools: depression information, depressions test, videos, thought diary, activities and a safety plan.