Onyx Performance OS
Redefine Training
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Show up and it shows: month board and attendance history. Coach tab with a reviews inbox. Buy plans from the app. 400+ exercises with video — 1.7.0.
Onyx Performance is the app for athletes and coaches at Onyx Performance Lab — in the gym or anywhere with Onyx Online.
TODAY, FIRST
Open the app and see your session, your food log and your daily check-in at the top. Anything that needs you — a waiver, a coach note, a suggested target — shows in one short list.
TRAIN
- Coach-built programs and the workout of the day, with plates & warm-up, exercise swaps and demo videos
- An exercise library of over 400 movements, each with a video, level, what you need, how to do it, cues and common mistakes — filter by the equipment you own
- Show up and it shows: every class a coach confirms counts toward your month, your place on the month board and your history
- Log sets where you lift, with a rest timer that runs on your lock screen and in the Dynamic Island
- Offline logging: everything syncs when you're back on signal
- PRs, streaks, training load and readiness in Progress
EAT
- Food diary with a 300k-food database, barcode scan, quick add and recents
- Meals & recipes you build once and log in a tap; day templates from your coach
- Daily targets your coach sets, with adaptive suggestions as your weight trends
- Supplements, water in your units, and a full vitamins & minerals view
RECOVER
- Daily readiness check-in with every scale explained, weekly coach check-ins, and a Recovery screen with sleep, HRV and resting heart rate from Apple Health (read-only, optional)
- Body: weight and body-fat trend against the goal band your coach sets
BOOK
- Classes and 1-on-1 sessions, waitlists, weekly recurring bookings, and your membership in one place
- Choose a plan or buy a session from the app — the payment page opens right away, already signed in
TEST
- Your Onyx Score, domain profile and testing results with what-changed verdicts and retest reminders
COACHES
- Coaches use the same app: confirm attendance after class, add walk-ins, change the day's WOD, post announcements, message athletes, enter field-test results, and work through one Reviews inbox of workouts, flags, check-ins, videos and test sessions
PARENTS
- Sign in with a parent account to follow your athlete's training, testing and bookings, book classes and sign documents on their behalf
WIDGET
- Add the Onyx widget for today's session, next booking, calories left and your check-in — tap a tile to open it, log water or tick a supplement without opening the app
ONYX ONLINE
- Train anywhere with nine coach-built programs — bodyweight, kettlebell, dumbbell, conditioning, strength and more — sorted by the equipment you own. Onyx Online is an auto-renewing in-app subscription ($24.99/month or the yearly price shown in the app) with a 7-day free trial for new subscribers; manage or cancel in your App Store settings. Gym memberships and classes are in-person services arranged with the gym.
An Onyx Performance account is required. Privacy policy: https://www.onyxperformanceos.com/privacy
Ratings & Reviews
Attendance that counts, a Coach tab with a reviews inbox, buy plans from the app, a full exercise library and nine Onyx Online programs.
ATTENDANCE
- Month board: every class a coach confirms counts. See who has shown up most this month, with profile pictures, and how last month ended. Resets on the 1st
- Classes card on Progress: this month, the last 90 days, the year, a 12-week grid and 12 months of bars
- Home shows your classes this month and your place on the board
- Notes at 8, 12 and 16 classes, a mid-month pace note, and one when the board resets
- Add a profile picture from Profile. It shows next to your name on the boards
BUY FROM THE APP
- Choose a plan or buy a session and the payment page opens right away, already signed in
COACH TAB (for coaches)
- Confirm attendance after class, add walk-ins, put a sub on a class or cancel it, change the day's WOD, post announcements, message athletes, look up any athlete and enter field-test results — from the phone
- Reviews: everything waiting on a coach in one list — workouts, flags, tasks, weekly check-ins, form videos, test sessions to approve, nutrition notes and health screenings. Each row is Done or Note
EXERCISE LIBRARY
- Every exercise we coach — over 400 — with a demo video, level, what you need, how to set up, how to do it, cues and common mistakes
- Filter by what you own, movement, level and video. Tap any exercise for its page
- "How to do it" on every exercise in your workouts
ONYX ONLINE PROGRAMS
- Nine programs: bodyweight only, kettlebell only, dumbbell, conditioning, strength, speed, GPP base builder, foundation strength and power development
- Tick the equipment you have once and Programs sorts into "Ready with what you have" and "Needs more equipment"
- Plain-language program pages: who it is for, what a week looks like, how to progress
SMARTER SWAPS
- Swap sheet grouped into Easier, Harder, Same movement and Other equipment, ranked by what you own
- Every exercise has an easier and a harder option
FIXES
- Health screening (PAR-Q) answers are clear Yes / No buttons; Submit tells you how many questions are left
- The first-open tour no longer appears over the consent forms
- Remote athletes get the same waiver, media release and health screening on first open as everyone else
- Tab names fit on every phone; boards show ranks as #1, #2, #3
- Faster, more reliable requests behind the scenes
The developer, Onyx Performance Systems LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Financial Info
- Location
- Contact Info
- User Content
- Identifiers
- Sensitive Info
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Search History
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Onyx Performance Systems LLC
- Size
- 40.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Frequent
Contests
Contains
Messaging and Chat
Health or Wellness Topics
- In-App Purchases
Yes
- Onyx Online $24.99
- Copyright
- © 2026 Onyx Performance Systems LLC
