RSTR vs Cindy

Start transforming your body and mindset with our 30-minute HIIT classes. Join in-studio or on-demand classes to start your journey right now. Workouts tailored for any level of fitness. View and plan class schedules, sign up for classes, view ongoing promotions, as well as shop for our latest merch drops. Classes: Fight 30 Strength 30 Endurance 30

Train like a superhero. 20 minutes. 3 exercises. As many rounds as possible. Cindy is one of the most famous benchmark workouts in functional fitness: 5 pull-ups, 10 push-ups and 15 squats, repeated for as many rounds as you can in 20 minutes. Simple, brutal, and the perfect way to measure real progress. ONE WORKOUT, DONE RIGHT No programs to browse, no exercise library to scroll. Open the app, see today's goal, start. A GOAL THAT GROWS WITH YOU Your first session measures where you stand. From there, Cindy sets your round goal and raises it as you keep showing up. Hit your goal and the workout ends on a win. BUILT FOR THE MIDDLE OF A SET A big, clear round counter. One tap per round, with arrows to correct a single exercise. A countdown gets you in position, the screen stays awake and a chime marks 20 minutes, but the clock never cuts you off: finish your round in overtime. A WEEKLY GOAL YOU CAN KEEP Choose 2 to 7 sessions a week. Hit your goal week after week to build a streak, with a nudge at the moments that matter: a new week starting, rest days running out, one session to go. SEE YOUR PROGRESS, SHARE IT Personal best, weekly streak and a 30-day challenge. A calendar shows every training day, with record-breaking sessions in gold. Share your result as a card and dare your friends to beat it. PRIVATE BY DESIGN No account, no ads, no tracking. Your workouts stay on your iPhone. Cindy is hard: you'll need to be able to do 5 pull-ups, 10 push-ups and 15 squats in a row, and a pull-up bar. Talk to a doctor before starting any new exercise program.