Schoola - Shop secondhand clothes that raise money for schools

Habitica - Habitica is a free habit building and productivity application.

Givalytics - Maximize your social impact: a portfolio approach to giving

Coach.me - Coach.me is a coach that goes everywhere with you, helping you achieve any goal, change any habit, or build any expertise.

AidSpace - Volunteer management for organisations around the world

Loop Habit Tracker - Loop Habit Tracker (AKA uhabits) helps to create and maintain good habits in order to achieve their...