Only a few years ago, it would have sounded like something from a science fiction novel.
Two Murray Bridge High Schoolers have created an app which uses augmented reality to guide students to their classes on time.
Users can enter their timeable into the app, point their smartphone camera around the school campus, and arrows will appear on the screen to point them to in the direction of their next class.
If they scan the door of any classroom, they can find out which classes are scheduled there that day and who will teach them.
The app - SMART, for Student Movement Augmented Reality Timetable - has the benefits of being more accurate than GPS, especially in multi-storey buildings, and more capable of working in areas with poor phone reception.
It has not yet been released for use by the general student population, but creators Rex Catipay and Zack Schwerdt hope to reach that stage later this year.
The next step after that will be commercialising the technology, which could eventually make it into every school in the state or find applications in other industries: national parks, for example.
Digital technologies teacher Lochlann Dwyer said the students' work was already attracting interest from potential investors.
Their ambitions received a boost on Thursday night when they were named winners in the Australian Information Industry Association's iAwards at the Adelaide Convention Centre.
They will aim to take out the equivalent national award at a ceremony in Melbourne in August.
It is the fourth year in a row Murray Bridge High School students have been so honoured.
They had previously developed a virtual art gallery, an augmented reality drawing program and an anti-bullying video game.