Palembang, South Sumatra / Jul 27, 2026 / Buffro
Buffro has published a public methodology explaining how its iOS and Android workout tracker evaluates strength across 1,102 exercise records. The re body<a href="https://healthylife7.com/eli-lilly-nyselly-climbs-into-the-spotlight-as-weight/” title=”Eli Lilly (NYSE:LLY) climbs into the spotlight as weight”>weight and sex adjustments, and the exercise types the system deliberately excludes when a strength score would be misleading
The methodology is available at https://buffro.app/research/strength-standards and is designed to make the app’s Strength Ranks feature easier to understand. Of the 1,102 exercise records in the underlyingmovements, 65 tristead of assigning them scores from inputs that do not describe strength reliably
Buffro uses four calculation branches because a single load-to-bodyweight ratio does not fit every exercise. External-weight movements such as squats, presses, rows, curls, and machine exercises use an estimated one-repetition maximum relative to bodyweight. Bodyweight-repetition movements such as pull-ups and push-ups use repetitions adjusted for bodyweight and movement difficulty. Weighted bodyweight movements account for supported bodyweight plus external load, while assisted bodyweight movements account for the assistance used.
Each supported exercise progresses through the same nine tiers: Beginner, Novice, Intermediate, Advanced, Expert, Veteran, Elite, Master, and Apex. Thresholds vary by exercise and sex. The public tables show the adult-under-40 baseline, while Buffro applies age coefficients beginning at age 40 inside the app. Bilateral dumbbell exercises use combined external load to match how Buffro records them
The public re cable lat pulldown, pull-up, and barbell squat. Visitors can adjust bodyweight and sex to see how the displayed thresholds change. Buffro describes the standards as training benchmarks rather than medical limits or competition classifications
Strength Ranks is one part of Buffro’s broader workout-tracking system. The app supports offline-first recording of exercises, sets, repetitions, weight, and notes. Optional online features include AI coaching, cloud sync, nutrition tools, and private Workout Buddies. Approved buddies can share ranks, streaks, and selected activity without exposing exact sets, weights, notes, measurements, nutrition, or photos
The publication gives coaches and users a reference for understanding which inputs change a rank, how movement categories are handled, and why some exercises do not receive one
Buffro is available free on the Apple App Store and Google Play. Core workout tracking is available without a subscription, while optional premium features include AI capabilities. Store pricing and trial availability can vary by platform and region
The methodology and interactive strength tables are available at https://buffro.app/research/strength-standards. Buffro can be downloaded for iPhone at https://apps.apple.com/us/app/buffro/id6760926241 and for Android at https://play.google.com/store/apps/details?id=com.buffro.app
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About Buffro
Buffro is an offline-first workout tracker for iOS and Android from PT Duo Digital Internasional. It combines workout logging, strength ranks, a 1,000+ movement exercise library, optional AI coaching, nutrition tools, progress tracking, and private social features. More information is available at https://buffro.app
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