How to Turn on App Notifications
For iPhone
From settings, tap Notifications, select Bluecrew, and make sure that Allow Notifications is on. If you have notifications turned on for an app but you're not receiving alerts, you might not have Banners selected. Go to Settings > Notifications, select the app, then select Banners.
For Android
From Settings, tap Notifications. Tap More, then tap Most recent, and then tap All. Next, tap the name of the app > Bluecrew. Turn the notification settings on or off by tapping the switch next to the different features.