Keeps track of demo paddles and allows text message reminders and app notifications when paddles are due back. App uses notifications to remind the app user when paddles are due back. It will also create a draft SMS text message that can be edited and sent to clients (the app stores phone numbers of clients if provided) as a reminder to return the paddle when it is due. App only stores phone numbers entered by the app user. Clients can refuse to provide app user with their phone number if that is their choice. Once a paddle is returned, the phone number of the client is removed.