If you already have OneSignal account, but you can't find App ID to do the setup in Appsgeyser Dashboard, then follow the steps below.
- Please go to https://app.onesignal.com/apps and
                                        select the app for setup: 
 
- Now you should see this app Dashboard. Please click "Settings" in the top
                                        menu:  
- Next, click "Keys & IDs": 
- Here you can see OneSignal App ID. Copy it,
                                        paste it to OneSignal App ID field in Push section of AppsGeyser Dashboard and
                                        click "Save":  
 Done!
 Now you have saved your OneSignal App ID and you can send push notifications to your app users. If you don't have an account yet, please use our guide.
