OneBusAway is a real-time transit information application that offers details on bus and train arrivals in various cities. It utilizes GPS data from transit agencies to provide accurate updates on vehicle arrival times, helping users plan their commutes efficiently. Users can search for stops and routes and view maps to gain a comprehensive understanding of their transit options.

OneBusAway is accessible in multiple cities across the United States, including Seattle, San Diego, and New York. To determine if it's supported in your location, check the app's website or within the app itself. Its availability depends on partnerships with local transit agencies that supply the necessary real-time data.

The real-time data from OneBusAway is generally very reliable, as it relies on GPS signals from transit vehicles. Nonetheless, factors such as traffic conditions, technical issues, and GPS signal quality can influence accuracy. While the app aims to offer the best estimates, users should anticipate minor discrepancies, especially during peak hours.

Yes, users can personalize their experience by saving favorite stops and routes for quick access. They can also set alerts for specific buses or trains to receive notifications about arrival times. These customization options facilitate more efficient management of daily commutes by focusing on preferred routes and stops.

Yes, OneBusAway is a free application available for both Android and iOS devices. While it is free to download and use, an internet connection is necessary to receive real-time updates, which might result in data charges depending on your mobile plan. The app has no hidden fees or premium features, making it accessible for all transit users.