Prop your phone, lift, and get an A–F grade on every rep — hands-free. On-device AI counts your reps and grades your form in real time. No video ever leaves your phone.
Just lift. Your phone counts and grades every rep.
CalmArms turns your phone into an AI form coach. Prop it up, start your set, and CalmArms watches every rep — counting it automatically and grading your form A to F in real time. No tapping, no counting, no touching the screen mid-set. When you train alone, it's the second set of eyes you never had.
WHY CALMARMS
• Grades every rep, not just counts it — joint angle, range of motion, tempo, stability, and left-right balance, scored A–F.
• Hands-free — set your sets up front, punch in the weight after each one, and never count a rep.
• On-device & private — pose detection runs locally on your phone. No video is recorded, stored, or uploaded. Ever.
• Works anywhere — garage, basement, hotel gym. No internet needed to grade a set.
SUPPORTED EXERCISES (18 exercises, 59 variations)
Arms — bicep curl, tricep extension
Shoulders — shoulder press, lateral raise
Chest — bench press, pec deck, chest fly
Back — lat pulldown, pull-up, row
Legs — squat, leg extension, leg curl, calf raise, deadlift (RDL, conventional, sumo, trap-bar)
Core — crunch, sit-up, hanging leg raise
More added regularly.
HOW IT WORKS
1. Pick your exercise and number of sets.
2. Prop your phone so it can see you.
3. Lift. CalmArms counts and grades each rep live.
4. Punch in your weight after each set.
5. Review your grades, range of motion, and progress over time.
TRACK YOUR PROGRESS
Workout history, personal bests, average grades, and streaks — in the app or on the web at calmarms.com/dashboard.
Built for solo lifters.
Privacy Policy: https://calmarms.com/privacy-policy
Terms of Service: https://calmarms.com/terms
CalmArms is a great app and very easy to use! As someone who’s always been active but never had access to a personal trainer, I never realized how much my form was holding me back. This tool closes the gap between working out and working out correctly. Highly recommend.
Excellent Form Tutorial Videos
MelinzMachado
As someone who is new to the gym, the form tutorial videos are super helpful and straightforward with none of the added bs that a Youtube tutorial videos would show.
Bug Fixes and UI Updates
Version 1.2.9
The developer, Arya Ika, 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 Linked to You
The following data may be collected and linked to your identity:
Purchases
Contact Info
Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Health & Fitness
Financial Info
Contact Info
User Content
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Calm Arms, LLC
Size
251.1 MB
Category
Health & Fitness
Compatibility
Requires iOS 15.5 or later.
iPhone Requires iOS 15.5 or later.
iPod touch Requires iOS 15.5 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.