# Onyx Coach > Onyx Coach is a free workout diary and gym tracker app for iOS and Android, built with elite coaches to help lifters track progress, follow structured programs, and train with purpose. ## What is Onyx Coach? Onyx Coach is a mobile fitness application developed by Coachito LLC. It is designed for gym-goers who want a clean, focused workout logging experience paired with structured coaching programs. The app is free to download with no subscription required. - **Platform:** iOS and Android - **App Store rating:** 4.8 stars - **Price:** Free - **Developer:** Coachito LLC - **Contact:** support@onyxcoach.com ## Core Features - **Workout logging** — log sets, reps, and weight with one tap; rest timer and RPE tracking included; previous session performance shown for every exercise - **Structured programs** — coach-designed training programs with periodization and progressive overload, with daily workout plans tailored to user level - **Progress analytics** — strength gain charts, 1RM estimates, volume load tracking, body measurement history - **Exercise library** — 500+ exercises with professional HD video demonstrations and step-by-step instructions - **Custom routines** — build workouts from scratch or customize programs; supports supersets and dropsets - **Health integrations** — syncs with Apple Health (iOS) and Google Health Connect (Android) ## App Store Links - iOS: https://apps.apple.com/us/app/onyx-coach-gym-tracker/id6737855506 - Android: https://play.google.com/store/apps/details?id=com.onyxcoach.mobile ## Website Pages - Homepage: https://onyxcoach.com/ - For Coaches (free 14-day trial): https://onyxcoach.com/coach - Support: https://onyxcoach.com/support - Privacy Policy: https://onyxcoach.com/privacy-policy - Terms of Service: https://onyxcoach.com/terms-of-service - Cookie Policy: https://onyxcoach.com/cookie-policy ## Social Media - Instagram: https://www.instagram.com/onyxcoach/ - TikTok: https://www.tiktok.com/@onyxcoach