New loyalty card apps have been launched by both Tesco and Subway, allowing smartphone owners to rack up credit without a cardboard or plastic card.
The apps automatically generate a unique barcode which can be scanned by staff at either shop to top up users' accounts with loyalty points.
These are stored remotely, rather than on the mobile itself, so even if it becomes lost or stolen customers can still hang on to those hard-earned points.
Versions of the apps have been made for Symbian-based smartphones and the iPhone, with an Android version on its way, according to AllAboutSymbian.
Tesco developed its iPhone app in-house and its creator Nick Lansley said that he went for Apple's famous smartphone first "because I have an iPhone so it seemed like a good place to start".
Was this article helpful?