Equestrian performance monitoring and developing is provided by the Synchronicity System™. Rein contact analysis using data taken from rhythm and tension sensors in Synchronicity™ reins is performed using proprietary algorithms to reliably inform and guide the correct training of the horse and rider. Riders can opt to use their own Synchronicity System™ or only need to find a suitable local centre at which the system is offered as part of the services. Synchronicity™ rein contact analysis comprises scores for the four key skills; Rhythm, Consistency, Contact and Balance – in each rein. Analysis is provided as scores out of ten for short ridden exercises performed according to a suitable menu chosen by the rider and their coach. Instant overall riding quality scores are provided as a top-level guide to progress and further in-depth analysis of the key skills in each hand is easily obtained through cost-effective and versatile payment methods. The mobile app is connected to an online web portal app through which riders and centre owners can manage their accounts. Centre owners can advertise their Synchronicity™ services through the web portal. Riders can plot their training history and monitor development of the four key skills. Opportunities for joining leader boards and for sharing ride results are provided through both types of app. Developed by experienced riders and coaches, the Synchronicity System™ and associated apps have been made user-friendly and simple to operate on-horse. The equipment fits neatly to conventional equestrian tack and saddles and is unobtrusive and rugged. The apps have very short user journey routes and simplified paging with clear instructions throughout.