// // Button groups // -------------------------------------------------- // Make the div behave like a button .btn-group, .btn-group-vertical { position: relative; display: inline-block; vertical-align: middle; // match .btn alignment given font-size hack above > .btn { position: relative; float: left; // Bring the "active" button to the front &:hover, &:focus, &:active, &.active { z-index: 2; } &:focus { // Remove focus outline when dropdown JS adds it after closing the menu outline: 0; } } } // Prevent double borders when buttons are next to each other .btn-group { .btn + .btn, .btn + .btn-group, .btn-group + .btn, .btn-group + .btn-group { margin-left: -1px; } } // Optional: Group multiple button groups together for a toolbar .btn-toolbar { margin-left: -5px; // Offset the first child's margin &:extend(.clearfix all); .btn-group, .input-group { float: left; } > .btn, > .btn-group, > .input-group { margin-left: 5px; } } .btn-group > .btn:not(:first-child):not(:last-child):not(.dropdown-toggle) { border-radius: 0; } // Set corners individual because sometimes a single button can be in a .btn-group and we need :first-child and :last-child to both match .btn-group > .btn:first-child { margin-left: 0; &:not(:last-child):not(.dropdown-toggle) { .border-right-radius(0); } } // Need .dropdown-toggle since :last-child doesn't apply given a .dropdown-menu immediately after it .btn-group > .btn:last-child:not(:first-child), .btn-group > .dropdown-toggle:not(:first-child) { .border-left-radius(0); } // Custom edits for including btn-groups within btn-groups (useful for including dropdown buttons within a btn-group) .btn-group > .btn-group { float: left; } .btn-group > .btn-group:not(:first-child):not(:last-child) > .btn { border-radius: 0; } .btn-group > .btn-group:first-child { > .btn:last-child, > .dropdown-toggle { .border-right-radius(0); } } .btn-group > .btn-group:last-child > .btn:first-child { .border-left-radius(0); } // On active and open, don't show outline .btn-group .dropdown-toggle:active, .btn-group.open .dropdown-toggle { outline: 0; } // Sizing // // Remix the default button sizing classes into new ones for easier manipulation. .btn-group-xs > .btn { &:extend(.btn-xs); } .btn-group-sm > .btn { &:extend(.btn-sm); } .btn-group-lg > .btn { &:extend(.btn-lg); } // Split button dropdowns // ---------------------- // Give the line between buttons some depth .btn-group > .btn + .dropdown-toggle { padding-left: 8px; padding-right: 8px; } .btn-group > .btn-lg + .dropdown-toggle { padding-left: 12px; padding-right: 12px; } // The clickable button for toggling the menu // Remove the gradient and set the same inset shadow as the :active state .btn-group.open .dropdown-toggle { .box-shadow(inset 0 3px 5px rgba(0,0,0,.125)); // Show no shadow for `.btn-link` since it has no other button styles. &.btn-link { .box-shadow(none); } } // Reposition the caret .btn .caret { margin-left: 0; } // Carets in other button sizes .btn-lg .caret { border-width: @caret-width-large @caret-width-large 0; border-bottom-width: 0; } // Upside down carets for .dropup .dropup .btn-lg .caret { border-width: 0 @caret-width-large @caret-width-large; } // Vertical button groups // ---------------------- .btn-group-vertical { > .btn, > .btn-group, > .btn-group > .btn { display: block; float: none; width: 100%; max-width: 100%; } // Clear floats so dropdown menus can be properly placed > .btn-group { &:extend(.clearfix all); > .btn { float: none; } } > .btn + .btn, > .btn + .btn-group, > .btn-group + .btn, > .btn-group + .btn-group { margin-top: -1px; margin-left: 0; } } .btn-group-vertical > .btn { &:not(:first-child):not(:last-child) { border-radius: 0; } &:first-child:not(:last-child) { border-top-right-radius: @border-radius-base; .border-bottom-radius(0); } &:last-child:not(:first-child) { border-bottom-left-radius: @border-radius-base; .border-top-radius(0); } } .btn-group-vertical > .btn-group:not(:first-child):not(:last-child) > .btn { border-radius: 0; } .btn-group-vertical > .btn-group:first-child:not(:last-child) { > .btn:last-child, > .dropdown-toggle { .border-bottom-radius(0); } } .btn-group-vertical > .btn-group:last-child:not(:first-child) > .btn:first-child { .border-top-radius(0); } // Justified button groups // ---------------------- .btn-group-justified { display: table; width: 100%; table-layout: fixed; border-collapse: separate; > .btn, > .btn-group { float: none; display: table-cell; width: 1%; } > .btn-group .btn { width: 100%; } > .btn-group .dropdown-menu { left: auto; } } // Checkbox and radio options // // In order to support the browser's form validation feedback, powered by the // `required` attribute, we have to "hide" the inputs via `opacity`. We cannot // use `display: none;` or `visibility: hidden;` as that also hides the popover. // This way, we ensure a DOM element is visible to position the popover from. // // See https://github.com/twbs/bootstrap/pull/12794 for more. [data-toggle="buttons"] > .btn > input[type="radio"], [data-toggle="buttons"] > .btn > input[type="checkbox"] { position: absolute; z-index: -1; .opacity(0); } .elementor-animation-grow-rotate { transition-duration: 0.3s; transition-property: transform; } .elementor-animation-grow-rotate:active, .elementor-animation-grow-rotate:focus, .elementor-animation-grow-rotate:hover { transform: scale(1.1) rotate(4deg); } {"id":93268,"date":"2026-04-28T15:31:59","date_gmt":"2026-04-28T13:31:59","guid":{"rendered":"https:\/\/www.solucionessmart.com.uy\/smartporteria\/?p=93268"},"modified":"2026-04-28T16:35:00","modified_gmt":"2026-04-28T14:35:00","slug":"5-best-bodybuilding-apps-for-muscle-hypertrophy-in","status":"publish","type":"post","link":"https:\/\/www.solucionessmart.com.uy\/smartporteria\/2026\/04\/28\/5-best-bodybuilding-apps-for-muscle-hypertrophy-in\/","title":{"rendered":"5 Best Bodybuilding Apps for Muscle Hypertrophy in 2024 In-Depth Comparison"},"content":{"rendered":"

The platform suits beginners who need structure and intermediates looking to try different training approaches. You\u2019ll appreciate this best muscle building app if you prefer self directed training over constant coaching check ins and enjoy comparing multiple proven programs before committing to one. The app focuses on powerlifting and Olympic weightlifting with structured programs that prioritize the competition lifts. You can customize your training frequency from three to six days per week and select accessory exercises that target your specific weaknesses. Juggernaut AI tracks your estimated one rep max for each lift and provides detailed analytics on volume load, relative intensity, and fatigue management across your entire training block. Caliber delivers real coaching from certified professionals who understand strength training biomechanics.<\/p>\n

#3 StrongLifts 5×5: The simple workout to get comfy<\/h2>\n

NTC offers a growing library of workouts led by Nike Master Trainers to help you shake up your routine. With over 190 free workouts available, there\u2019s something for everyone, whether you\u2019re looking to improve your strength, endurance, or flexibility. He has over five years experience in fitness tech, including time spent as the Buyer\u2019s Guide Editor and Staff Writer at technology publication MakeUseOf. In 2014 he was diagnosed with a chronic health condition, which spurred his interest in health, fitness, and lifestyle management. Apple Fitness is an app designed by Apple that comes pre-installed on your iPhone and iPad. It’s where your fitness data is stored, and includes the steps tracked by your iPhone and works you completed in other apps.<\/p>\n

What about the new RP hypertrophy app?<\/h3>\n

This, combined with detailed analytics and a library of educational content, empowers users to understand the principles behind their training. It is an excellent choice for lifters who appreciate a data-informed approach to hypertrophy without an immediate financial commitment. The user interface is minimalist and focused, displaying your current workout with clarity. StrongLifts 5×5 automatically calculates your warm-up sets, tells you which plates to load on the bar, and includes a rest timer to keep you on track. When you successfully complete your sets, it automatically increases the weight for your next session. The app also has built-in logic for deloading after failed reps to help you break through plateaus safely.<\/p>\n

Nike Training Club<\/h2>\n

GainGuy also doubles as a bodybuilding meal planner, making it one of the top apps for bodybuilding workouts that prioritises smart, structured nutrition to support muscle growth. All advice is backed by the USDA and UCCS, so you can trust that the guidance is grounded in solid nutrition science. While the free version includes plenty of great resources, upgrading to Premium unlocks all workout programmes, meal plans and advanced tracking tools for a more personalised training experience. The app features a large and regularly updated database of exercises, each with video demonstrations and detailed descriptions to support proper form. You can track your weight and reps after every workout, and even add notes or photos for future reference.<\/p>\n

How We Picked and Tested the Best Free Workout Apps<\/h3>\n

The platform suits beginners who need form guidance and intermediate lifters looking to break through strength plateaus. You\u2019ll appreciate Caliber if you prefer structured programs over the AI randomness of some competitors and want a human reviewing your actual lifting videos. Caliber builds your program around progressive overload principles that ensure you add weight or reps consistently. Your coach reviews your form through video submissions and adjusts your plan when you hit madmuscles cent<\/a> plateaus or need to work around injuries. The platform emphasizes compound movements like squats, deadlifts, and bench press that stimulate maximum muscle growth across your entire body. Fitbod uses artificial intelligence to build custom workout plans that adapt to your progress, recovery status, and available equipment.<\/p>\n