TELEGRAPH.CO.UK - Jan 10 - Sweatt, a digital start-up from New York, has launched an app that matches prospective partners based on their exercise habits. Pitched as 'Tinder for fitness fanatics', Sweatt asks users to input their exercise practices - primary workout, favourite time to exercise, frequency of workouts per week etc. Using this data, the app produces a list of potential partners and presents this to other like-minded singles.