Body by K vs B>IAM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Body by K
Access personalized fitness and nutrition programs designed for competition prep, lifestyle changes, or sustained healthy living. Receive customized plans with direct coach access and prompt responses to support your journey.
- Competition prep programs
- Lifestyle nutrition plans
- Customized training
- Direct coach access
- 24-hour response time
- Monthly workout subscription
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Global Fitness Coaching for Competition Prep to Lifestyle Nutrition and Training Programs. We offer programs for every fitness level. Gain the confidence to step on stage, get in the best shape of your life or learn how to sustain a healthy lifestyle while still enjoying the foods you love. All programs are 100% customized with access to your coach and always less than 24hour response time. Programs include: Competition Prep Online Training Programming Online Nutrition Programming 21 Day Program Reverse Dieting Monthly Workout Subscription And much much more.. *Requires paid coaching plan Terms of use: https://kahunas.io/terms-conditions Privacy policy: https://kahunas.io/privacy
B>IAM
This app offers comprehensive fitness and nutrition tracking to help you achieve your health goals. It allows you to log workouts, monitor body measurements, and track daily meals with personalized plans and targets. Access all your personal data to visualize your progress and stay motivated.
- Workout progression tracking
- Nutrition logging and meal plans
- Body measurement tracking
- Progress picture visualization
- Wearable fitness tracker synchronization
- Personalized nutrition targets
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P.T.321’s ~ B>IAM ~ APP P.T.321, has provided personal training services for face to face sessions since 2010. Despite the love of providing face to face sessions, P.T.321 must move with the times. B>IAM is just that, all the passion, experience, and love for personal training brought to the palm of your hand, offering mobility, convenience, and affordability. Transform your fitness journey with B>IAM, a comprehensive fitness and nutrition app designed to track and analyse your progress. Design for the everyday user. B>IAM provides an unparalleled range of features, that caters for your specific and individual needs. Every user has access to all their own personal information, giving you the ability to track your journey, progress, and data. Workout Tracking - Record your workouts progression, from the weights, reps, RPE, and time taken. - View stats for each exercise, comparing progression with other times completed. - Compare the progress with your volume, maximum weights per exercise and more. - Synchronise your daily steps calories burn and workouts from your wearable fitness tracker monitor. Nutrition Tracking - Log your daily meals and see the total calories, protein, carbs, and fats for that day. - Follow customised meal plans directly within your app’s food diary - Follow your personalised nutrition targets to realise your intended goals such as fat loss, weight loss, and/ or muscle gain. - Track your food, your calorie intake and macros for weight loss, maintenance and/or weight gain. Body Measurement Tracking - Keep track of your body weight, body fat percentage, waist measurements, and more. - Record and view your progress picture over time and see your intent realised. - progress pictures of before and during will help keep your intent alive and you motivated. to B>IAM!~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * App access requires paid coaching plan Terms of use: https://kahunas.io/terms-conditions Privacy policy: https://kahunas.io/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Body by K at none against B>IAM's 1. On price, review sentiment, update cadence and ads 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
Both are free to download. B>IAM sells 1 in-app purchase, starting at $29.99 per month. Body by K asks for nothing beyond the download.
Body by K ships an update every 2 months, B>IAM every 5 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | Body by K | B>IAM |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (14 ratings) — better | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 14 — better | — |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 52 MB | 51 MB |
| Age rating | 17+ | 17+ |
| Developer | Kayla Perry | P.T.321 Ltd |
Customer experience
Body by K
B>IAM
In-app purchases
Body by K
No in-app purchases
B>IAM
- Monthly Program$29.991 Month









