Rain Bird is a free application that lets you connect your Rain Bird controller to your mobile device. With this app, you can turn on sprinklers, set up customized watering schedules, and automate weather adjustments. This app is an excellent tool to save water and money.

Rain Bird is compatible with various Rain Bird controller models, including ST8-WIFI, ESP-TM2, ESP-RZXe, ESP-Me, ESP-ME3, RC2, and ARC8. The app is easy to use and provides a simple interface to control your watering systems.

The app's features include the ability to set up customized watering schedules, monitor water usage, and receive notifications about watering schedules and weather adjustments. You can also track your water savings and see how much money you're saving with the app.

Overall, Rain Bird is an excellent tool for anyone who wants to save water and money while still maintaining a beautiful lawn. It is easy to use and provides a simple interface to control your watering systems, making it a must-have for any Rain Bird controller owner.