FM Radio Indonesia: Free Online FM Radio is a multimedia app developed by Radioworld FM. It is a free Android application that allows users to listen to more than 2100 Indonesian FM, AM, and internet radio stations. The app offers convenient features such as an alarm function, sleep timer, and the ability to listen to the radio while using other apps or in sleep mode.

The app also offers compatibility with Android Auto, Chromecast, and Bluetooth devices. Users can save their favorite radio stations, search for new ones, and share them with friends via social networks, email, or SMS. The app also includes a widget for easy and quick access to the last listened radios.

While the app is ad-supported, users can opt for an ad-free version through the app menu. It is worth noting that the app requires a stable 3G, 4G, or WiFi internet connection to work correctly.

Overall, FM Radio Indonesia: Free Online FM Radio is an excellent app for those who want to enjoy a comprehensive radio listening experience.