Comparison

BELLS, Kettlebell Workouts vs Metabolic Computer by Sam Gym

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

BELLS, Kettlebell Workouts

This app guides and tracks kettlebell workouts, allowing users to program and share custom routines. It offers QuickStart features for immediate training and the ability to add custom skills with video links. Premium content includes monthly new workouts and professionally designed programs.

Highlights
  • Custom workout programming
  • Workout sharing
  • QuickStart features (Ladder, EMOM, Straight Sets, Custom)
  • Add custom skills and video links
  • Workout history tracking
  • Monthly premium workouts
  • Professionally designed workout programs
Features
Read full description

Bells helps elevate your training by guiding and tracking your kettlebell workouts. It provides a simple way to program workouts to share them with other users and your students with the push of a button. It has four QuickStart features allowing you to jump into any training session. You can build on your QuickStart to create a workout on the fly with ease. Then save it for sharing or completing again at another time. Preset with a list of basic kettlebell skills and an option to add your own. You can provide detailed instructions to create workouts and include links to your video demos via YouTube or Vimeo links. Don’t want to program workouts? New workouts monthly in the premium feature, so your training never gets stale. Access premium for 12 tried and tested workouts created by professional kettlebell instructors for about $10 monthly. Or purchase professionally designed programs that will elevate your training. Each program is available for a single purchase and loads directly into your BELLS app. They are designed for all levels, from beginner to advanced, with instructions and videos. Download today and STAY STRONG! QUICKSTARTS Quickly and easily get into your workout or training session using our QuickStart features. Once you have started a session using the quickstart feature and it finishes, you can add additional skills or complexes and create a workout that can be saved and shared. -LADDER: This allows you to track your rungs as you go through a ladder-style training set. -EMOM: A simple ‘EVERY MINUTE ON THE MINUTE’ timer at your fingertips. -STRAIGHT SETS: quickly set up your rep and set schemes, including any rest breaks you need, and then all you have to do is follow along and do the work you program. -CUSTOM: In this feature, you can set custom timer settings. Such as specific work-to-rest ratios, and include sets and reps if desired. PLAN YOUR WORKOUT Build your workouts by selecting a ‘single skill’ or ‘build your complex.’ You can choose from our preset exercise selection or add your own skill. Choose whether you have one bell or two, the weight, sets, reps, and rest period length. Once you select your skill, you can move to the mode and choose between Ladder, EMOM, straight sets, or custom. You have the option to add instructions for specifics on your skill or complex and include a link to an external video if examples are needed. After adding all the workout elements, you can start the workout and get to it or save the workout and then generate a link to share or come back to it later. SHARE YOUR WORKOUTS Bells is excellent for coaches and trainers to have an easy and free way to create and share workouts with athletes/students/clients. With the bells app, you can plan your workout and create a customized one you can easily share with another user. WORKOUT HISTORY Here you can see a log of workouts you have completed. You will see how long your workout took and a total of kilograms lifted in the session based on the weight set in the workout. SUBSCRIPTION You can subscribe and pay through your iTunes account. Payment will be charged to iTunes Account at confirmation of purchase. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours before the end of the current period. The user may manage subscriptions, and auto-renew may be turned off after purchase by going to the ‘Manage Subscription’ page in settings.

About

Metabolic Computer by Sam Gym

Track your food intake and workouts to create a personalized metabolic picture. This app forecasts your weight and provides daily calorie and macro targets based on your activity and health data from wearables.

Highlights
  • AI-powered weight forecast
  • Adaptive calorie & macro targets
  • Meal tracking with photo analysis
  • WHOOP and Apple Health integration
  • Workout logging with recovery insights
  • Heart rate zone analysis
Features
Read full description

Metabolic Computer by SAM GYM is your personal fitness supercomputer. Snap a picture of your food to track calories and macros. Then it combines your workouts, nutrition, and health data into one system that shows your current calorie intake from food, and your calorie expenditure from your wearable heart rate monitor, like a WHOOP or Apple Watch. The app pulls real data from Apple Health or WHOOP — recovery, strain, heart rate, sleep — and combines it with your logged workouts and meals to build a personalized metabolic picture. From there, it forecasts your weight and gives you daily calorie and macro targets calibrated to your goals. FEATURES: • AI-powered weight forecast based on your actual activity and food intake • Smart calorie & macro targets that adapt to your real-world data • Meal tracking with photo analysis — snap a plate, get the macros • WHOOP and Apple Health integration for recovery, strain, sleep & heart rate • Workout logging with muscle recovery insights and AI recommendations • Heart rate zone analysis with weekly training targets • Detailed history with fully editable workout and meal logs Subscription: Sam Gym Pro - $3.99/month with 30-day free trial. Payment charged to Apple ID. Auto-renews unless canceled 24h before period end. Manage in Settings > Apple ID > Subscriptions. Terms of Use: https://samgym.org/terms Privacy Policy: https://samgym.org/privacy

Screenshots

BELLS, Kettlebell Workouts3 screens
Metabolic Computer by Sam Gym4 screens

Verdict

The call

The clearest difference is ratings volume: BELLS, Kettlebell Workouts at 27 against Metabolic Computer by Sam Gym's 1. Metabolic Computer by Sam Gym's advantage is rating (5.0 vs 4.8). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. BELLS, Kettlebell Workouts sells 10 in-app purchases, starting at $2.99 per month and Metabolic Computer by Sam Gym sells 1 in-app purchase, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Metabolic Computer by Sam Gym holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: BELLS, Kettlebell Workouts has 27 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

BELLS, Kettlebell Workouts ships an update every 2 months, Metabolic Computer by Sam Gym every 4 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
BELLS, Kettlebell Workouts versus Metabolic Computer by Sam Gym: the parameters behind the verdict, then further details
ParameterBELLS, Kettlebell WorkoutsMetabolic Computer by Sam Gym
PriceFreeFree
Rating4.8 (27 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings27 — better1
Update frequencyEvery 2 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size85 MB6 MB
Age rating4+4+
DeveloperJanus movement solutions LLCSamuel Rey

In-app purchases

10 purchases

BELLS, Kettlebell Workouts

Subscriptions3
  • Monthly$2.991 Month
  • Monthly3 Days trial$9.991 Month
  • Annually3 Days trial$89.991 Year
One-time7
  • Program A1$0.29
  • Program B1$1.99
  • Program B3$4.99
Show 4 more
  • Program C2$19.99
  • Program C4$29.99
  • Program C5$39.99
  • Program D4$89.99
1 purchases

Metabolic Computer by Sam Gym

Subscriptions1
  • Weight Predictor Pro1 Month trial$3.991 Month

Questions

Is BELLS, Kettlebell Workouts free?
BELLS, Kettlebell Workouts is free to download, with in-app purchases available.
Is Metabolic Computer by Sam Gym free?
Metabolic Computer by Sam Gym is free to download, with in-app purchases available.
Which has better reviews, BELLS, Kettlebell Workouts or Metabolic Computer by Sam Gym?
Metabolic Computer by Sam Gym is rated higher. BELLS, Kettlebell Workouts averages 4.8 out of 5 from 27 ratings, while Metabolic Computer by Sam Gym averages 5.0 from 1 ratings.
Do BELLS, Kettlebell Workouts or Metabolic Computer by Sam Gym have ads?
Neither BELLS, Kettlebell Workouts nor Metabolic Computer by Sam Gym shows ads.
Which is updated more often, BELLS, Kettlebell Workouts or Metabolic Computer by Sam Gym?
BELLS, Kettlebell Workouts ships an update every 2 months, and Metabolic Computer by Sam Gym every 4 weeks. Most recently, BELLS, Kettlebell Workouts was updated on November 3, 2026 and Metabolic Computer by Sam Gym on October 31, 2026.

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