BYOB - Bring Your Own Bottle is a free iPhone app developed by the South Australian Water Corporation. It falls under the category of Travel & Navigation and aims to promote the use of tap water by providing users with a convenient way to locate nearby drinking fountains and bottle filling stations in South Australia.

With the BYOB app, users can easily find the nearest drinking fountain or bottle filling station, whether they need a quick drink, to fill their own bottle, or even to quench their pet's thirst. The app offers clear directions to the chosen location through an interactive map, ensuring users can easily navigate to their desired destination.

By encouraging the use of tap water and reducing the reliance on single-use plastic water bottles, BYOB aims to make a positive impact on the environment. With close to 1000 mapped drinking fountains already available, users can also contribute by adding new locations to the app. Additionally, users have the ability to rate the fountains, allowing others to see highly recommended spots, while also providing feedback to the app developers for areas that may require improvement.

BYOB - Bring Your Own Bottle is a user-friendly and practical app that promotes sustainable choices and helps users conveniently access tap water wherever they are in South Australia.