“We have been among the earliest adopters of Keyple. The Keyple libraries are central to the success of our ticketing software stack. Using keyple’s Calypso libraries, we built a solid ticketing solution able to use all Calypso products at their full potential. The few problems we had were quickly fixed by the reactive and attentive team behind the Keyple solution. With the recent addition of Calypso PKI to the solution, we are convinced using Keyple has been the right choice.”