An advanced AI Coach that gets to know your body and guides you straight to your goal. It analyzes your workouts, dials in your weights, and keeps your progress on track — around the clock, and for a fraction of what a real trainer costs.
Discover Grynd ↓Built by people who train themselves and know exactly what's missing in other apps.
Grynd changes that. It's one system that thinks for you and guides you all the way to your goal.
Advanced workout tracker, statistics, routines, custom exercises, body measurements — completely free, no limits. What others charge for, you get from the start.
And the AI Coach? Try it free for 7 days. It will interview you, learn your goals, build your plan, and guide your first session.
Vision
You're not alone in the gym. Your Coach works even while you rest.
Your Coach gets to know you with every workout. It understands your body, your habits, and your energy levels, so it can match each new challenge to how you feel today.
Your Coach doesn't just give advice, it does the work for you. It builds plans in your calendar, dials in your weights, and adjusts your routines on its own, so you can just walk into the gym and train.
Your training stops being random. An advanced system looks at your history and your fatigue, then builds periodization that keeps you progressing for years, instead of stalling after a month.
Guide
Five tabs that hold everything you need to train.
Here you can see your form from the last 7 days. You can track your body measurements and dig into stats so detailed that you reach every single set and exercise.
Your whole history in one place. You check what you've already done and see the sessions your Coach has planned for the days ahead.
This is your space on the gym floor. You can start an empty workout and add exercises as you go, or kick off a ready routine with a single tap.
This is where you keep all your training plans. You build your own workouts, lay out the sets, and arrange your weekly schedule so it fits your rhythm and lifestyle.
Your AI Coach is available around the clock. It doesn't just answer your questions, it builds your plans, adjusts your routines, and analyzes every workout. It's an advanced system that guides you from your very first session to breaking through a plateau.
Knowledge Base
The exercise database keeps everything in one place. You can search and filter it, check the exact technique for any movement, and follow your own charts and history.
You can filter exercises by category, muscle group, or equipment, and if you already know what you want, you just type the name — in Polish or English.
For every exercise you can see which muscles work and what equipment you need, and a step-by-step guide shows you how to perform the movement correctly.
For every exercise you get charts and a full history, so you can see your weights and records climb month after month.
Your Body
Track your weight, your measurements, and body fat — everything that changes as you train. Every entry lands on a chart, so you can watch your progress as it happens.
You see your current value and how much it has changed since your last measurement, so you instantly know whether your body is heading in the right direction.
Every parameter has its own chart that shows how your body changes over weeks and months, not just how it looks today. You can work in either metric or imperial units.
All your previous measurements are at hand, and you can add a new one anytime. Just enter the value and it shows up on the chart right away.