The solutions involving simulator do work but sometimes you needed to explore the database on a physical device.
If you want to view your sqlite database when running on a device connected to your Mac you'll first need to mount the application files on your mac. You can use iExplorer for that. There is a free demo I used for testing but paid $40 in end:
iexplorer website
Once you mount the apps files you can explore the database using DB browser for sqlite: DB browser for sqlite website. Its not as polished as mysql workbench but its free and gets the job done.