Coaching that gets better over time.
STRYK helps you make better training decisions—not just generate workouts. Behind every recommendation is a coaching system built on structured knowledge, continuous improvement, and careful reasoning.
Most fitness apps still make you coach yourself.
You decide what to train, when to push, when to back off, and how to stay consistent after a missed day. STRYK exists to carry more of that work.
It considers the plan before the exercise
Intent
Stryk starts with what you want, how often you can train, what you have access to, and what your body is used to.
Constraints
It keeps track of injuries, equipment limits, time, and recovery so recommendations stay inside those boundaries.
Weekly plan
Each week has a purpose: what to train, how hard to work, where to rest, and how to progress.
Adaptation
Logged sets and missed sessions change what comes next, without turning the plan into guesswork.
Less managing. More training.
Your whole week at a glance
Know what each day is for before you get to the gym, including how long it should take and where recovery fits.
One card, every detail
Spend less time checking notes between sets. The next lift, target reps, rest, and cue stay in one place.
Adjust without breaking the plan
If a movement is not right today, change it without losing the point of the session.
Safety before intensity
Training advice can affect someone's body. STRYK keeps clear limits around what it will and will not coach.
Injuries are constraints
A flagged shoulder removes overhead pressing from the candidate set entirely — it is not weighted down, it is excluded.
Medical limits stay clear
STRYK knows where coaching ends. It does not guess about medical problems or pretend to replace healthcare professionals.
No medical claims
Stryk never diagnoses, never prescribes rehab, and says so plainly in-product.
Beyond the app
Most people will only ever see STRYK.
Behind it are two additional systems that allow coaching to improve over time.
STRYK Studio is our AI-powered production platform. It researches exercises, produces illustrations and animations, builds teaching content, performs quality assurance, and publishes approved coaching assets.
Exercise Intelligence is the structured knowledge that sits behind the coaching experience. It captures how exercises work, how they should be taught, common mistakes, coaching cues, regressions, progressions, equipment, biomechanics, and movement principles.
As that knowledge improves, STRYK improves.
Every athlete benefits from the same continuously evolving foundation.
Why Claude
Building these three systems requires more than generating text.
We're using Claude throughout the company to help design the product, engineer the platform, build STRYK Studio, expand Exercise Intelligence, and reason through complex coaching problems.
Claude is not simply a feature inside STRYK.
It is a foundational part of how we build the company itself.
That allows a small team to design, build, test, and continuously improve a coaching platform that would traditionally require a much larger organisation.
Building STRYK
We're building more than a fitness app.
We're building an AI-native coaching company.
The coaching experience athletes use is only one part of the system.
Behind it sits a production platform that continuously creates and improves coaching assets, and a growing body of structured exercise knowledge that makes every recommendation more consistent and more useful over time.
Our goal isn't to replace coaches.
It's to make high-quality coaching available to far more people than traditional one-to-one coaching ever could.
We're still early, but we're building deliberately, investing in strong foundations, and choosing long-term quality over rapid feature growth.
A consumer strength-training app that plans the week, guides the session, and helps athletes adjust safely.
Better progression, smarter changes after missed sessions, and more ways to measure whether the coaching is helping.
Coaching that can use your goals, schedule, equipment, constraints, training history, and progress across longer blocks.
Be the first to train with Stryk
Early access when the beta opens. No spam, no hype.