EFN: Macro & Workout Tracker
Vanessa KRANTZ Health & Fitness iPhoneiPadiPod touch
EFN: Macro & Workout Tracker is a free Health & Fitness app for iPhone and iPad by Vanessa KRANTZ. Requires iOS 14.0. Updated August 19, 2026.
- Price
- Free
- on the App Store
- Size
- 97 MB
- Age 17+
- Updated
- Aug 19
- 2026 · v1.2.2
Screenshots
About EFN: Macro & Workout Tracker
EFN is a physiology-driven nutrition and training system designed to move beyond traditional calorie tracking. The app analyzes your body composition, metabolism, and physiological data to generate personalized nutrition, training, and supplementation protocols aligned with your real biological profile. Instead of fixed plans or manual coaching, EFN continuously adapts your protocol based on measurable progress. Every 14 days, the system recalculates energy needs, macronutrient distribution, and training strategy to support fat loss, muscle preservation, or body recomposition within safe physiological limits. EFN tracks key indicators such as body fat percentage and lean mass to keep decisions data-driven, not guess-based. Core features: • Physiology-based nutrition protocols • Automatic macro calculation and adjustment • Personalized training generation • Supplement recommendations with safety safeguards • Progress analysis based on real body metrics • Adaptive recalculation every 14 days EFN is not a calorie tracker. It is a structured body recomposition system built on physiological logic and long-term sustainability. IMPORTANT DISCLAIMER EFN is not a medical application and does not provide medical advice, diagnosis, or treatment. Always consult a qualified professional if you have any medical condition. Terms of Use: https://efnempire.com/terms Privacy Policy: https://efnempire.com/privacy-policy
What’s new
Version 1.2.2 · Updated August 19, 2026
What's new in 1.2.2: • Personal Coach: talk to your Coach in French about training, nutrition, and daily plans • Log meals, weigh-ins, drinks and training sets directly from the conversation, with an explicit confirmation before anything is saved • Protocol Reveal: your first precise measurements now unlock a personalized protocol • Home Training V1: choose Gym, Home, or Both — training frequency 1–5 and equipment-driven programming • Stability + polish across Home, onboarding, and training
App privacy
The developer, Vanessa KRANTZ, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Health & Fitness: Health, Fitness
- Purchases: Purchase History
- Contact Info: Email Address, Name
- User Content: Photos or Videos, Customer Support, Other User Content
- Identifiers: User ID, Device ID
- Usage Data: Product Interaction
- Sensitive Info: Sensitive Info
- Diagnostics: Crash Data, Performance Data
Used for: Analytics, Product Personalization, App Functionality