yolk.day
a personal trainer in your pocket
Your personal trainer
in your cell phone
No app required. Get personalized workouts sent to your phone when you want them. It's like having a trainer who knows exactly what you need.
Get Sample Workout
Free • No signup required • Instant SMS
Any cell phone
30 sec setup
10¢ per day
Why people love yolk.day
Completely Personal
Every workout adapts to your goals, time, equipment, and space. Plus it learns from your feedback.
No App Required
Works on any cell phone through simple text messages. iPhone, Android, even flip phones.
AI Nutrition Coach
Text photos of meals for instant macro analysis and feedback aligned with your goals.
Ready to get started?
Start building your daily fitness habit with your personal pocket trainer.
Get Sample WorkoutFree sample • No signup required