Cornerstone Strength

Build strength, gain muscle, and make consistent progress with Cornerstone Strength - a workout tracker built for all training levels. Whether you’re a beginner just starting at home or an advanced lifter with access to a full commercial gym, Cornerstone Strength gives you the tools to plan, track, and see your progress workout to workout, week to week, and month to month. Create your own program from scratch, or choose from built-in programs. Use the advanced training algorithm to continually make progress, and track that progress with advanced analytics. SMART SUGGESTIONS - NEW Your next weight, sets, and reps - suggested right on the workout screen. Built from your recent sets, your logged effort (RPE/RIR), and time between sessions, with plain-language reasoning behind every number. Apply with one tap or ignore it - it's a starting point, not a rule. COACH-DESIGNED TRAINING PROGRAMS Programs are written by real strength coaches using proven periodization methods. Whether your focus is strength, hypertrophy, athleticism, or a combination, Cornerstone Programs has you covered. Just select a program, plug in your numbers, and start training. Or, use one as a starting point, and make adjustments to fit your needs. WORKOUT LOGGING THAT UNDERSTANDS LIFTING Stop doing the math in your head. Log sets with weight, reps, RPE, RIR, and AMRAP support. The app knows the difference between a heavy compound set and an accessory movement and adjusts intensity tracking accordingly. Pick a percentage-based program, enter your training maxes, and Cornerstone Strength automatically calculates your working weights for every set. Features include: - Intensity tracking with RPE and RIR - Advanced progress charts and analytics for training volume - Structured program sessions or quick freestyle workouts - Customizable rest timer that keeps running in the background - Audio and vibration alerts when rest is over - Automatic PR detection when you hit new records - Band tracking for accommodating resistance - Workout notes and duration tracking ADVANCED PROGRESS ANALYTICS See exactly how your strength is progressing over time: - Estimated 1RM (e1RM) progression charts - Volume tracking by muscle group - Weekly volume trends and breakdowns - Personal records history - Workout streak and consistency stats - Filter by month, 3-month, year, or all time 500+ EXERCISE LIBRARY Browse exercises by muscle group or equipment type. Barbell, dumbbell, kettlebell, machine, cable, plate-loaded, bodyweight, trap bar, safety squat bar, and more. Create custom exercises with your own descriptions and classifications. 15 muscle groups tracked: chest, back, shoulders, biceps, triceps, quads, hamstrings, glutes, calves, abs, traps, forearms, adductors, neck, and full body. SHARE YOUR PROGRESS Turn any completed workout into a clean, share-ready card — PRs, top lifts, and muscle-group balance. Post to Instagram Stories, save to Photos, or send to training partners. Dark, light, and transparent styles. BUILT FOR LIFTERS - Dark and light themes - Clean, distraction-free interface - Fast and responsive. No bloat, no ads. Whether you're following a periodized program or just want a reliable workout log, Cornerstone Strength handles the details so you can focus on getting stronger.