BellSense: Intelligent Coach
Coached reps and programming
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Most apps count reps. BellSense coaches them. Now the coach watches your sets through the camera, speaks while you train, and answers when you ask. Free to start.
BellSense is a kettlebell coach. The app gives you the program, you log the work, and the next session adapts to what you actually did.
Make every rep matter.
How the coaching works, with just your phone
Pick a program. Each session tells you what to do. You log your sets and rate how they felt, and BellSense reads everything you give it: reps, effort ratings, volume, heart rate if you wear a monitor, and sleep, HRV, and resting heart rate through Apple Health, combined into a daily readiness score. Then it makes the call a coach would make: add, hold, or back off — decided by your results and recovery, not a calendar.
The logbook decides what you do next.
You can also just ask the coach what to train. It reads your recent sessions and recovery, recommends one session, and tells you why — or ignore it and train what you want.
All of that is free and stays free.
Training programs
Programs that run from weeks to months, beginner foundations to advanced power and density work, each with warm-ups, cool-downs, and accessory work. All twenty-six are free.
Supported exercises
Kettlebell ballistic: swing, snatch, clean
Kettlebell grind: goblet squat, one-arm row, overhead press
Kettlebell stability: Turkish get-up, windmill
Barbell: back squat, bench press, deadlift, press, row
Barbell lifts are logged and scored alongside the kettlebell work; the structured programs are kettlebell.
Workout modes
• Individual: one exercise, tracked round by round
• Alternating: two or three exercises paired and rotated each round
• Complex: several exercises chained back to back, tracked as one session
Live camera coaching
Prop your phone up and the camera counts your training as you do it — squats, presses, rows, swings, and snatches, free. The Swing Trainer reads every swing live with a verdict on each rep. With BellSense+ Live, the coach also speaks while you work.
After every session
• The coach's read on how the session went, tied to your own data
• The progression call for next time
• Volume and trend charts that build week over week
The bell sensor
BellSense started as a small sensor that mounts on the kettlebell. It is in development, not for sale yet, and the app never requires it.
BellSense+
An optional subscription. Your coach reads each session and tells you what the numbers mean, with weekly and monthly reviews and an on-demand read of your last 30 sessions. It rebuilds today's session when your readiness calls for it, from 30 sessions of history instead of 10. Tell it you have different bells, something hurts, or less time, and it adapts the day around that. It sets a weekly conditioning target from the training load you actually carried, and it analyses as many lifting videos as you care to send it. Programs, progression, and cardio stay free.
• BellSense+ Monthly — $9.99 per month
• BellSense+ Annual — $79.99 per year
BellSense+ Live
The top tier. The coach watches your sets through the camera and speaks while it happens. Ask it anything in chat — answers come from your own sessions — and every day opens with a written brief: what today should be, and why.
• BellSense+ Live Monthly — $29.99 per month
• BellSense+ Live Annual — $239.99 per year
Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically at the same price unless it is canceled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours of the end of the current period. Manage or cancel your subscription in your App Store account settings. Prices are in US dollars and may vary by region.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://bellsense.app/privacy
What you need
• An iPhone and a kettlebell.
• Optional: a heart rate monitor, and Apple Health for readiness.
• No sensor. The app never requires one.
Simple tools, serious work. Lift with intention. BellSense keeps you honest.
Meet your coach on day one.
Setup is a conversation now. Your coach introduces itself out loud, asks what it needs — your bodyweight, the bells you own, what you're training for — and you answer by speaking or typing, whichever suits you. Then it answers you back in its own words and starts you on your first session.
Tell it what kind of day you're having.
BellSense+ adds three controls to today's session: different bells, something hurts, short on time. The coach rebuilds the session around what you've actually got, shows you exactly what changed before you commit, and it still counts as your program day. Want something else entirely? It picks you a one-off and your program day waits for next time.
The camera setup screen turns green.
If it never did for you, this is why: on the front-facing lens — the one the app opens with — it could not detect a body at all. Fixed. That screen also has a Cancel button now, survives switching lenses, and tells you the real reason it can't see you instead of asking you to keep stepping back.
Also in this build:
• Start works on every Home state — the coach's recommendation now launches the session it just named.
• Workout cues are audible again; seven of them had been shipping silent.
The developer, BellSense LLC, 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:
- Health & Fitness
- Contact Info
- User Content
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- BellSense LLC
- Size
- 42.2 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Infrequent
Contests
Contains
Advertising
Health or Wellness Topics
- In-App Purchases
Yes
- BellSense+ Live $239.99
- BellSense+ Live $29.99
- BellSense+ Annual $79.99
- BellSense+ $9.99
- Copyright
- © 2026 BellSense
