HIT Log vs FFMI Analyzer

High-intensity training (HIT) is well-recognized as one of the most effective methods of strength training. HIT Log assists your training by allowing you to enter your exercises and the weight used in each exercise, combined with a method to measure the time under load (also known as time to failure) to track your progress.

[All features are free. Tips (about the price of an iced coffee) are optional.] A body composition app that visualizes your true muscle mass (FFMI)—something weight and BMI alone cannot show. No tedious manual entry required. Syncs with the Health app and provides graphs built for analysis. [Sync with the Mac app] The long-awaited Mac version is here. Share iPhone data to the Mac app via iCloud and view and analyze it on a larger screen. Ideal for reviewing long-term trends and subtle changes at your desk or on your home PC. (Sync is one tap from the analysis screen—a reliable manual sync you control when you need it.) [Key features] Graph image export: Export all your data as a single scroll-free image for review and sharing. Multi-device support: iPhone and iPad, plus Mac viewing via iCloud sync. Detailed nutrition analysis: Overlay PFC balance and vitamin/mineral intake on your graphs. Energy expenditure analysis: See basal and active energy to check intake vs. burn at a glance. Integration with Workout Analyzer: Launch Workout Analyzer with a single tap via URL scheme. Seamlessly switch back and forth to evaluate your muscle mass (FFMI) and daily training load. Automatic sync: Weight, body fat, steps, nutrition, and burned calories from Health. [Our policy] Completely free / No ads Privacy first (data is processed on-device by default; only necessary data is sent to iCloud for Mac sync) Calculation logic based on academic research