With millions of visitors using the apps during the duration of the Rolling Stones Exhibitionism world tour they need to be very engaging and totally reliable.

The Rolling Stones Mixer app allows visitors to work with original song stems to make their own mixes of classics.

The apps run for months at a time so they have to be totally crash proof and for all music tracks to remain 100% synchronised.

Running the kiosks on iPad pros has proved very reliable and easy to manage.