Some mobile phone app categories exist which are sure to boost running of business operations. Twitter is one app that has revolutionized customer interaction, especially for SMEs. Receipt Bank &Debtor Daddy enable speedy extraction of financial data and payment due status respectively. WordPress has provided firms with a cost effective marketing tool. Evernote allows users to manage text on the move and thus accelerating productivity. Tunnel Bear meanwhile is one app which enables professionals to connect to office network using their personal phones or tablets irrespective of location thus ensuring time and space sharing.