
BuffCat: Strength Training Log
3D Form Guides & Muscle Maps
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Free
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About
Every set counts. Your cat shows it.
BuffCat turns your strength training into a 3D cat that changes with every workout. Log your sets, track recovery and see your progress. No account. No ads.
■ A cat built by your workouts
• The muscles you train show up on your 3D Buff Cat.
• Buff Cat strikes a bodybuilding pose to show off your most-trained muscles.
• Once your muscles recover, Just Cat returns to rest on all fours.
• Work out again and watch it transform back into Buff Cat.
■ Finish with a flex
• After your workout, Buff Cat stars in a highlight scene.
• Your results card shows volume, workout time, total sets and new PRs.
• Save or share Today's Buff Cat as a vertical image.
■ Know what's recovered
• See each muscle's fatigue on your 3D cat and on front and back muscle maps.
• Check your recovery for now, tomorrow and the day after.
• See at a glance which body parts are ready to train.
■ 251 exercises in 3D
• Explore 3D form animations for barbell, dumbbell, machine, cable and bodyweight exercises.
• See each exercise's primary and secondary muscles on a muscle map.
• Filter by body part and equipment, and save your favorites.
• Can't find yours? Create a custom exercise and choose the muscles it works.
■ Routines and supersets
• Save your go-to workouts as named routines and start them right away.
• Repeat a past workout just as you did it.
• Link exercises into supersets and move through them round by round.
■ Log your sets. Know your numbers.
• Track weight × reps, reps alone, time or cardio minutes.
• Mark warm-up, drop and failure sets.
• Compare your performance with your last workout and recent average.
• New PRs are detected automatically and marked with a trophy.
• See your estimated 1RM, top weight and volume in kg or lb.
■ On your wrist and Lock Screen
• Follow your workout on Apple Watch, complete sets and adjust weight and reps.
• Your rest timer starts automatically after each set and plays a sound when it ends.
• Check your rest timer on the Lock Screen and Dynamic Island, then adjust or complete your next set right there.
■ See the bigger picture
• Check your training balance with a hexagon chart for the past week or month.
• Track weekly volume, your most-done exercises and your weekly streak.
• Look back on a full year of activity on a heatmap.
• Browse your workout calendar and edit or delete past workouts.
■ Your history goes with you
• Import your history from other workout apps via CSV, and export all of it as CSV too.
• Keep your data in sync with iCloud.
• Save completed workouts to Apple Health as strength training.
Get your next set in. Give Buff Cat a reason to flex.
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What's New in BuffCat
1.0.3
November 4, 2026
• New Muscle map widget for your Home Screen: see which muscles are still fatigued and how long until you've fully recovered • Check each muscle's fatigue and recovery for now, tomorrow and the day after • Once all your muscles recover, Buff Cat turns back into Just Cat and rests • Your results card and share image now show the muscles you trained. Tap the map on the card for sets per muscle and when to train them again • Switch between 3D and 2D muscle views on the workout screen • Re-import CSV files exported from BuffCat without duplicating workouts • Numbers follow your language's format, and we fixed screens where long text was cut off
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