SmartGym is rolling out a major update today, adding new ways to compare workouts over time, custom heart rate zones, new exercises, and more. Here are the details. Update adds customization, granularity, and new exercises I’ve been a SmartGym user for years, and it still amazes me how often the app gets major updates with several useful, interesting new features. Today’s update is no different. It replaces the Monthly Summary view with the Workout Summary, which lets users toggle between weekly and monthly views and compare the current period with the previous one. This way, users can get a better overall picture of their performance, whether over the short term or across longer stretches of training. In fact, the update also brings weekly and monthly comparisons to individual routines, making it easier to track how specific groups of exercises evolve over time. Another addition to today’s update is the new custom heart rate zones feature, which lets users define their own ranges for more accurate tracking.…