Lifeline lifelinefitness.com 2 ratings Add rating Rate your shopping experience with Lifeline: Lifeline is a mid-size fitness & exercise brand that markets products and services at lifelinefitness.com. Lifeline competes with other top fitness & exercise brands such as Tonal, Les Mills Equipment and BootySprout. Lifeline sells mid-range purchase size items on its own website and partner sites in the extremely competitive online fitness & exercise industry. When it comes to offering discount codes, Lifeline issues coupons and discount offers regularly but less frequently than competitors. Lifeline is a newer, or medium to lower popularity brand when it comes to discount codes and promotion searches, with fewer shoppers actively searching for Lifeline offer codes and deals each month. WellnessFitness & Exercise