What is the Crossrope app? Sydney M April 29, 2019 14:45 Updated Follow The Crossrope app is a free and convenient app for smart devices with workouts and challenges with your jump ropes. You can find it available for download HERE. Related articles What are the main features of the app? How do I download the app? Jump Rope Sizing Shipping Do I need the Crossrope system to use the app?