SingBUS is a free Android app developed by Akaikingyo Apps that provides quick access to estimated bus arrival timings and bus service information for SBS Transit and SMRT buses. The app offers a range of features to make commuting via bus easier in Singapore, including a "where is my next bus?" feature that allows users to locate the next bus by the number of stops, a map that shows the location of the next bus, and an index by road feature to browse for bus services by road index.

Additionally, SingBUS allows users to bookmark their favourite bus stops, configure the app according to their preferences, and auto-refresh bus arrival timings. The app is available in English and Chinese and is supported by advertisements. However, it must be noted that all bus arrival timings and bus service information are provided by the Land Authority of Singapore on an "as is" and "as available" basis without warranties of any kind.

Overall, SingBUS is a useful app for those who rely on buses as their primary mode of transportation in Singapore. With its user-friendly interface and range of features, it makes tracking bus arrival timings and bus service information quick and easy.