LemonyApps announces the release of Promishare, a motivational mobile app exclusive for iPhone. The main goal of Promishare is helping people fulfill their promises through public commitments. Promishare stems from the idea of public commitment. This conception was first used in the bestselling book Weapons of Influence by one of the most quoted social psychologist Robert B. Cialdini. In particular, it is the second principle of influence, which he calls Commitment and Consistency.