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

Estimate how long physique progress is likely to take.

The progress estimator helps you map realistic timelines for weight change and physique goals instead of relying on vague expectations.

  • Estimate timelines for fat loss or muscle gain.
  • Compare goal size against realistic weekly progress rates.
  • Set expectations before starting a cut, bulk, or recomposition phase.