This guide will walk you through how to install the Little Green Button mobile app and get it ready to send and receive alerts on your licence.


For a similar guide for Android, please see How to install the Mobile App (Android).


Head to the App Store and find Little Green Button, or use the button below to be redirected to the page.




Click the download icon to install the application.


Once the download is completed, please tap the Open button to start the app, or start the LGB app from the launcher.


The app will launch and you will be presented with the first time setup wizard. Press Next to continue.


Please fill out your name and phone number. Both of these will be displayed on alerts that you send out, to help the receiver understand who sent out the alert.

Note: The username is currently not displayed on the Windows App.

Press Next to continue.


The initial setup of the app is now completed. Press Finish.

You are not yet connected to your licence, so the app will now ask you to connect. Press Connect Response Group to start this process.


The wizard will start. Please bear in mind you can only send and receive alerts to and from devices that are on the same licence.

Press Next.



For easy activation you will be able to scan a QR code from your MyLGB Activation page.

Press Scan QR.


Because LGB is trying to use your camera, you will receive a system warning. Please allow access to the camera. Little Green Button only uses your camera during this activation process to scan a QR code.


Please line up the grid on the camera view with the QR Code on your screen.


The Little Green Button mobile app will connect to your licence. If you have any Groups set up, you will be prompted to select what group you would like to be a part of. You will send and receive alerts based on the configuration that is assigned to this group.

Note: For more information on how to set up groups, please see here


You are now done activating on your licence. Press Finish to complete this section.


By default, the Little Green Button app will use your location service (GPS) to establish its location. Your device will prompt you to allow access to this. Please allow access.


Your Little Green Button is now ready for use.


Continue on to Using the Mobile App