Guam Regional Transit Authority provides Guam with affordable, reliable, and accessible island-wide public transportation services. The official GRTA is an excellent way to keep informed about GRTA, notifications, and schedules.
This application is totally safe for downloading. GuamAppz created the app that falls into the Travel & Local category. The latest update of the tool was released on Oct 12, 2020 and GRTA was downloaded by over 100 users.
This application has the overall rating 5 on Google Play. It's free of charge to get the installation package of GRTA, also, you can have a look at users' reviews on Droid Informer. The app works fine on Android 4.0 and higher.