Grit by Brit fitness app FOX 4 News Dallas-Fort Worth Good Day Published September 23, 2017 10:18 AM CDT Share Copy Link Email Facebook Twitter LinkedIn Reddit Published September 23, 2017 10:18 AM CDT Brittani Rettig, founder of Grit By Brit just launched a new fitness app. She visited Good Day Saturday to share some of the moves featured on the app.
