Build around basic human needs. Humans are self-motivated and use apps in general to stroke their ego, push their agenda forward, #humblebrag, or to receive some form of direct benefit. We post and share to social media so others can tell us how amazing, lucky and incredible we are. We inhale the flattery like a drug and the ecstasy of micro-fame we feel is addictive and empowering. The most addictive apps play on our base human need to be accepted and loved.