Between Sets: How Long Should You Rest To Build Muscle Faster?

By Dr. Carl Juneau, PhD
Updated May 17, 2017

App updates (2016 – today)

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Improved iOS 18 compatibility 16 (in beta)

Full release notes (version 2.9.2956) * Fixed: Broken workout flow on double-tap in rare cases * Fixed: Incorrect exercise-level increments settings in rare cases * Fixed: Reload workout / exercises after changing settings * Fixed: 4 crashes in rare cases Coming soon * Timer between exercises

App updates (2016 – today) May 9, 2025 1 min read

Improved iOS 18 compatibility 15

Full release notes (version 2.9.2949) * Fixed: Design of final welcome overlay after account creation * Fixed: Recommended recovery time during workouts * Fixed: Incorrect workout summary and new record email in rare cases * Fixed: 7 crashes in rare cases Coming soon * Timer between exercises

App updates (2016 – today) May 9, 2025 1 min read

Fixed: Recurring crash during workouts

Full release notes (version 2.9.2941) * Fixed: Recurring crash during workouts (related to overlays) * Fixed: Wrong recommended recovery time in rare cases * Fixed: Wrong exercises after editing workout in rare cases * Fixed: 6 crashes in rare cases Coming soon * Timer between exercises

App updates (2016 – today) Apr 29, 2025 1 min read

Muscle Machine program

Full release notes (version 2.9.2935) * Added: Muscle Machine program (all-machine gym routine) * Fixed: Incorrect weight goal (always fat loss) in rare cases cases * Fixed: Need to tap "Finish workout" twice after adding sets * Fixed: Cannot log in with Apple in rare cases * Fixed: No timer overlay

App updates (2016 – today) Apr 29, 2025 1 min read

Edit calories

Full release notes (version 2.9.2931) * Added: Edit meal plans calories * Improved: You can now create custom exercises anytime you view exercises * Improved: Display of long exercise names * Improved: Log in with Apple on new devices * Improved: Recommended calories after large body weight changes * Fixed: Cannot reorder exercises and

App updates (2016 – today) Apr 12, 2025 1 min read

Improved end workout flow

Full release notes (version 2.9.2923) * Improved: Workout end flow (removed confirmation popups) * Improved: Startup logo * Fixed: Names are cut in exercise lists * Fixed: Cannot remove exercise from workout in rare cases * Fixed: Wrong exercises shown on edit workout or swap * Fixed: Cannot upload custom program * Fixed: Home page

App updates (2016 – today) Mar 29, 2025 1 min read