M&S' loyalty scheme - Sparks - was causing problems in stores and for customers. Customers get given a set amount of offer slots every fortnight and they can select which offers they want activated. However, many customers didn't understand how to do this and were taking up a lot of staff time needing help.
We did a few days of research in stores across the country and found this to be the number one problem, so we made an application on the staff devices for staff to scan a customer's Sparks card and activate offers for them. The redemption rate on offers increased drastically after this app was released, and it is now in every store across the UK.
The other two applications were for different devices and one was for customers to use in store. The conclusions for these apps aren't complete yet.
Sparks Android Repository: https://github.com/DigitalInnovation/sparks_offer_android
Sparks iPad Repository: https://github.com/DigitalInnovation/sparks_offer_android