RaySpec

Periscope was very professional in the way they went about this process. They incorporated all the latest user interface techniques and presented a full screenshot and functionality proposal. Once they had coded the app, we were able to test it fully using a dedicated development web interface. At that stage, we requested some changes in the functionality which actually represented additions to the original specification, but Periscope incorporated them very quickly. We are very happy with our new app which works perfectly on iOS and Android devices and I wholeheartedly recommend Periscope as a mobile app designer and developer.

Peter Smith, Managing Director, RaySpec.