Any child with an app-enabled device and phone number can download the kid's version of the Greenlight app to check their balance and make requests. If your child does not have a cellular number, you can set up a Google Voice number for your child and use this to log in to the app.
Once you’ve acquired a Google Voice number, simply open the Greenlight app, tap on the child's name, then tap "Enable App Access," and enter the phone number. Your child should then be able to log into their Greenlight app with this number. If you need any assistance in getting this setup, send us a message at email@example.com, we’d be happy to help!