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Overview
Onyx is a mobile AI-powered personal trainer for at-home workouts. It uses the smartphone camera to track movements, automatically counts reps, and provides real-time feedback on form to prevent injuries and improve effectiveness. It offers personalized workout plans aligned with goals like strength, muscle building, or weight loss, and it tracks progress over time. Its differentiator is real-time form correction and rep counting through computer vision, combined with integrated coaching and progress tracking in one app to support safer, more effective workouts.
About Onyx
Industries
Data & Analytics
Consumer Software
AI & Machine Learning
Healthcare
Company Size
11-50
Company Stage
Seed
Total Funding
$10.1M
Headquarters
San Francisco, California
Founded
2023
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Simplify's Take
What believers are saying
- Apple App Store updated Onyx: Fitness AI Coach on June 2, 2026.
- Pricing at $4.99 monthly and $79.99 lifetime lowers purchase friction.
- Integration with Apple Watch, Whoop, Oura, Garmin, and Fitbit broadens usage.
What critics are saying
- Apple and Android platform changes can break camera tracking and Health integrations fast.
- A 5.0 rating from 51 App Store reviews signals tiny user adoption.
- If Cure.fit prioritizes its own stack, Onyx loses product support and distribution.
What makes Onyx unique
- Camera-based rep counting and form correction still define Onyx's core product.
- Onyx Pro bundles workout, sleep, food, and Apple Health data.
- Cure.fit acquired Onyx in 2021, giving it computer-vision technology.
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Funding
Total Funding
$10.1M
Above
Industry Average
Funded Over
2 Rounds
First Round Capital
Y CombinatorIndustry standards
Benefits
Remote Work Options
Flexible Work Hours
Unlimited Paid Time Off
Paid Vacation
Health Insurance
401(k) Retirement Plan
401(k) Company Match
Wellness Program
Mental Health Support
Conference Attendance Budget
Professional Development Budget
Stock Options
Company Equity
Parental Leave
Family Planning Benefits
Fertility Treatment Support
Adoption Assistance
Phone/Internet Stipend
Home Office Stipend
Relocation Assistance
Tuition Reimbursement
Professional Certification Support
Company News
Onyx, the first AI deep research agent designed for the workplace, announced today a $10M seed round of funding.
Y Combinator seeded more than 250 companies in its current winter batch, which leans heavily into AI. One particular AI subcategory has nearly tripled over the past year.
Onyx is Hiring for 4 Jobs on Simplify!
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About Onyx
Industries
Data & Analytics
Consumer Software
AI & Machine Learning
Healthcare
Company Size
11-50
Company Stage
Seed
Total Funding
$10.1M
Headquarters
San Francisco, California
Founded
2023
Onyx is Hiring for 4 Jobs on Simplify!
Find jobs on Simplify and start your career today