Next-Gen Performance

TRACK THE
UNSTOPPABLE

The ultimate diary for your physical evolution. Precise weight tracking, intuitive habit logging, and elite performance analytics.

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-12%
Body Fat Loss

Pulse Tracking

Real-time metabolic sync with all major wearables for precise calorie and heart-rate data.

Evolution Diary

Capture mood, sleep quality, and performance notes in a daily aesthetic log built for speed.

Weight Matrix

Advanced volume and weight metrics to ensure every session pushes you past your plateau.

Two Tiers. Zero Excuses.

Start free with Train and Diary. Upgrade to unlock everything.

Free
Free
  • • Workout Plans (Train)
  • • Evolution Diary
  • • Mobile App Access
  • • Weekly Summary
Pro · Full Access
£9.99/mo
or £99/year — save 17%
  • Everything in Free
  • Weight Tracker & goal progress
  • Fitness Tracker — steps, calories, water
  • Nutrition — calories & protein
  • Advanced Bio-Analytics
  • Priority Support
GO PRO

YOUR GYM. YOUR POCKET.

Download ONYX on iOS and Android. Track every rep, every gram, every breakthrough — wherever you train.

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App Store
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Google Play
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ONYX athletes wear Hardcore. Built for those who refuse to quit.

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