Arete Codex
Free fitness tools. No personal data collected.

Android app is out

MacroCodex lets you track your TDEE, weight, calories, and macros from your phone.

Install the free MacroCodex Android app and keep your nutrition data moving with you, without paywalls or subscriptions.

Download on Google Play

Free Tool

Choose the right physique phase before you change your calories.

This planner helps you decide whether a cut, lean bulk, recomposition, or simple weight-loss phase makes the most sense for your current body composition, training history, and goals.

  • Compare bulking, cutting, recomp, and weight-loss paths.
  • Avoid choosing the wrong calorie phase for your current body fat level.
  • Get a more defensible next step before using nutrition calculators.