Trick question: the app does not sync steps. If you're looking for an automatic step tracker, sorry. There are plenty of other apps on the App Store you can use, but GymRats is not one of them.
The goal of GymRats is to promote intentional exercise and fitness. It is an activity-focused app, and will only pull explicit workout data or exercises you perform.
The app does not pull daily step count or similar metric data from your fitness devices as it is not a step tracker.
If you are competing in a challenge that is scored by step count, you must manually enter your step count on the check-in screen.
Thank you for understanding 💪