BuffCat: Strength Training Log
3D Form Guides & Muscle Maps
Free · Designed for iPhone. Not verified for macOS.
Every set counts. Your cat shows it.
BuffCat makes strength training easy to track—with a muscular cartoon cat that has something to flex about.
■ See what you've worked
• Muscles trained in the last 4 days glow red on your 3D cat.
• Buff Cat strikes a bodybuilding pose to show off your most-trained muscles.
• Take a few days off and Just Cat returns, wandering around on all fours.
■ Find your next exercise
• Explore 251 exercises with 3D form animations: barbell, dumbbell, machine, cable and bodyweight.
• See each exercise's primary and secondary muscles on a muscle map.
• Filter by body part and equipment, and save your favorites.
■ 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.
• See your estimated 1RM, top weight and volume.
• Use kg or lb.
■ Keep your workout moving
• Your rest timer starts automatically after each set.
• Check your rest timer on the Lock Screen and Dynamic Island.
• Adjust the next set's weight and reps, or mark it complete, right from either screen.
■ 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 a full year of activity on a heatmap.
• Browse your workout calendar and edit or delete past workouts.
■ Bring your history with you
• Import your history from other workout apps via CSV.
• Keep your data in sync with iCloud.
• Save completed workouts to Apple Health as strength training.
• No account needed. No ads.
Get your next set in. Give Buff Cat a reason to flex.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• After each workout, Buff Cat sums it up on a card you can share as an image
• Apple Watch app: complete sets and follow your rest timer from your wrist
• Routines: save your own routines and repeat a past workout as is
• Supersets: group exercises and alternate between them
• Add your own exercises, with a 3D muscle preview
• New personal records and first-time lifts are flagged automatically
• See the muscles you trained on a front and back body map
• Export and import your workout history as CSV
• A rest-over sound you'll hear even while listening to music
• New orange look and app icon
• Bug fixes
The developer, Juyong Bak, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Juyong Bak
- Size
- 113.6 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.1 or later.
- iPhone
Requires iOS 26.1 or later. - Mac
Requires macOS 26.1 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.1 or later. - Apple Watch
Requires watchOS 26.0 or later.
- iPhone
- Languages
English and 9 more
- English, French, German, Italian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- Copyright
- © 2026 SunDragon
