Training Library
173 exercises, mapped to the muscle.
Every exercise in the Helix catalog — which muscles it works and how hard, the equipment it needs, and how long each muscle takes to recover before you load it again.
Collections
19 themed programs built from this catalog, then audited by the app's per-muscle recovery math: famous fictional routines, military standards, progression roads and archetype plans.
Muscle
Category
01
Chest
1702
Back
2103
Shoulders & Traps
1704
Biceps
1005
Triceps
1006
Forearms
507
Quads
1708
Hamstrings
1009
Glutes
910
Calves & Lower Leg
511
Adductors
212
Core
2013
Olympic & Power
514
Kettlebell
515
Calisthenics
616
Conditioning & Cardio
14Free calculators
Every number, computed properly.
TDEE, heart-rate zones, VO₂max and more — the real formulas, free, no signup.
Open the tools →Helix for iPhone + Apple Watch
Recovery tracked per muscle, from every set.
Helix logs your lifts against this same catalog and tracks each muscle’s recovery — free, on-device, no account.
Download Helix — FreeImage credits
Exercise form illustrations are © Gym visual, with additional artwork from RepDB and photography from free-exercise-db. Each exercise page names the source of its own illustration. The muscle maps and involvement data are ours.