# B3 Fitness — Health & Fitness > Personalized fitness, nutrition, and coaching app with progress tracking and wearable integration. (iPhone/iPad app by Jill Lenzen.) - Source: https://appshunter.io/ios/app/b3-fitness/id6502615366 (this page in markdown: same URL + `.md`) - Developer: [Jill Lenzen](https://appshunter.io/developer/1746164048) - Category: Health & Fitness, Lifestyle - Price: Free - Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 17+ - Requires: iOS 15.0 · 133 MB - Languages: American English, French (France), German (Germany), European Portuguese, European Spanish - Released: 2024-05-14 - Data updated: 2026-06-01 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/b3-fitness/id6502615366/reviews.md ## What is B3 Fitness? Kick-start your fitness journey with B3 Fitness. Together with Jill Lenzen, you'll have the best combination of nutrition & exercises available on a single app. With B3 Fitness, you can begin your fitness journey in no time. Get a fully personalized workout and meal plan tailored to your fitness goals. Progress tracking gets easier when you log your daily workout, record meals, update your check-ins and connect your fitness band & health kit, and get real-time updates via advanced analytical tools. Everything that contributes to your fitness goals gets captured in one place. To top it all, use the inbuilt 1-1 chat feature to have all your queries addressed on the go. You deserve to be the best. That’s why B3 Fitness have packed so many features in a single app to help you achieve your fitness goals. Start your journey today! Features that will help you achieve your fitness goals include: * Personalized Workout Plan: Get a fully personalized fitness plan tailored to your goals, whether it is to gain weight, lose weight, gain muscles, or simply wish to work on your general fitness. * Nutrition, Hydration & Habits: Access meal plans assigned by your coach and log your food intake to keep a close track of your calorie intake and macros. You can also track your hydration, steps and calories burnt on the app. * Instant messaging & video calls - Message your coach in real-time and schedule video sessions directly from the app. Stay connected with your coach to improve compliance and get better results. * Check-ins: Gain complete insight into your overall performance with easy check-ins and real-time updates. * Progress: Stay on top of your progress with powerful analytics. * Wearable integration: Get the bigger picture of your progress by connecting your fitness band & health kit thereby enabling real-time updates. Note regarding Apple Health: The app integrates with Apple Health to show your daily activity - distance, steps, active energy, and flights to help you better achieve your goals. App also uses Apple Health to track energy burned and heart rate during a workout session, if an Apple Watch is used. Workout metrics are shared with the coach to better design your workout schedule. DISCLAIMER: Users should seek a doctor’s advice before using this app and making any medical decisions. ## Key features - Personalized workout plans - Customized meal plans - Nutrition, hydration, and habit tracking - 1-on-1 coach messaging and video calls - Progress tracking and analytics - Fitness band and HealthKit integration ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/b3-fitness/id6502615366/reviews.md ### 5/5 — Great fitness app! *2024-07-10* Love the interactive meal plans and workouts. Trainers are very responsive and always available! ## Frequently asked questions about B3 Fitness ### What kind of workouts does B3 Fitness offer? B3 Fitness provides fully personalized workout plans tailored to your specific fitness goals, whether it's weight gain, weight loss, muscle building, or general fitness improvement. ### Can I track my nutrition with B3 Fitness? Yes, you can access meal plans assigned by your coach and log your food intake to monitor calorie consumption and macronutrients. The app also helps track hydration, steps, and calories burned. ### How does B3 Fitness help me stay connected with my coach? B3 Fitness features an instant messaging and video call function, allowing you to communicate with your coach in real-time and schedule sessions directly within the app for improved compliance and results. ### Does B3 Fitness integrate with wearables? Yes, the app integrates with fitness bands and Apple Health (including Apple Watch metrics for workouts) to provide real-time updates and a comprehensive view of your progress. ### How does B3 Fitness track my progress? Progress tracking is made easy through daily workout logs, meal records, check-ins, and advanced analytical tools. Workout metrics are also shared with your coach to refine your schedule. ### Is B3 Fitness suitable for all fitness levels? The app offers personalized plans for various goals, suggesting it can cater to different fitness levels. However, users should consult a doctor before starting any new fitness program. ### What is the age rating for B3 Fitness? B3 Fitness has an age rating of 17+, indicating it is intended for mature users. ### How often is B3 Fitness updated? The latest version of B3 Fitness is 4.0, and it was last updated on January 28, 2026, suggesting active development and regular updates. ## Version history (last 5 releases) ### 4.0 — 2026-01-28 Bug fixes and performance improvements ### 3.6.70 — 2025-11-17 Bug fixes and performance improvements ### 3.6.60 — 2025-10-16 Bug fixes and performance improvements ### 3.6.50 — 2025-10-12 Bug fixes and performance improvements ### 3.6.0 — 2025-07-30 Bug fixes and performance improvements ## Apps similar to B3 Fitness | App | Rating | Price | Category | | --- | --- | --- | --- | | [Momence](https://appshunter.io/ios/app/momence/id1577856009) | 4.9 (24,812) | Free | Health & Fitness | | [Peloton Strength+](https://appshunter.io/ios/app/peloton-strength-plus/id6476712925) | 4.8 (16,318) | Free | Health & Fitness | | [CFX Fitness made easy](https://appshunter.io/ios/app/cfx-fitness-made-easy/id6748364688) | 1.9 (28) | Free | Health & Fitness | | [URFitAP - Orland Park](https://appshunter.io/ios/app/urfitap-orland-park/id6443828357) | 3.8 (10) | Free | Health & Fitness | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*