FIZ.
The Home
of Functional
Fitness.
Fiz is the social fitness app built for functional and hybrid training. Create workouts with AI. Share them with the world. Remix the best. Compete against friends. From CrossFit Hero WODs to Hyrox to Ironman – your training, amplified.
Fiz is built for athletes who program.
Fiz is an AI workout engine, a feed of structured sessions, and a leaderboard for every workout – the app you wish Strava made for the WOD generation.
Describe it. Train it.
Type what you want – "30-min Hyrox station prep, sled push and ski erg, race pace" – and Fiz writes the workout. Movements, rep schemes, time caps, rest intervals. Structured. Ready to publish.
- Generates AMRAP, EMOM, For Time, Ladder, Circuit, Tabata, and custom formats
- Pulls from the same 150+ movement library that powers the manual editor
- Fine-tune every section before publishing – no AI lock-in
- Fiz Turbo gives Pro members 12 daily generations with faster inference
Fork any workout. Make it yours.
Found a Hero WOD you love but don't have a 20lb vest? Remix it. Swap movements to match your equipment. Tune the reps. Cap the time. Publish your version – the original creator gets credit and the lineage is public.
- One-tap remix preserves the original structure
- Every workout is a node in a public lineage tree
- See every variation the community has built
- Like GitHub forks – but for training
Compete on every rep.
Every workout on Fiz has a scoring format – time, rounds + reps, total load, or custom. Submit your score, see where you rank against the entire Fiz community, your gym, or just your friends. Track your benchmark improvements over months.
- Global, gym-level, and friend-only leaderboard scopes
- Gold / silver / bronze rings for the top 3
- Track every benchmark attempt over time
- Pro adds percentile breakdowns and historical filters
Tinder, but for workouts.
Stop scrolling. Start swiping. Fiz hands you a deck of curated workouts tailored to your training history. Right to save, left to skip, tap to open. Find your next session in seconds, not minutes.
- Personalised deck rebuilds every day from your followed athletes & disciplines
- Right-swipe saves to your collection. Left-swipe trains the recommender
- Haptic feedback & smooth physics – the same engine that powers the social feed
- Never see the same workout twice until you reset the deck
Filthy Fifty
Race Sim
Murph
The workout is the artwork.
Every workout you publish on Fiz becomes a beautifully structured poster – your training, framed. Browse 100+ curated posters across six disciplines.
FIZ is for the rest.
Strava nailed GPS-tracked endurance. But functional fitness isn't a line on a map – it's structured workouts, rep schemes, and per-movement leaderboards. We built that.
FIZ
Functional fitness
Four steps. Zero friction.
Describe
Tell the AI what you want – equipment, time cap, intensity, training focus.
Refine
Fine-tune the generated workout in the full manual editor. Swap movements, adjust reps.
Train
Run the workout in the built-in timer. Log heart rate and metrics from Apple Health.
Compete
Submit your score. Climb the leaderboard. Share to the feed. Get remixed.
Frequently Asked.
What is Fiz?
How does AI workout creation work?
Can I remix other people's workouts?
Is Fiz free?
What types of workouts does Fiz support?
What devices does Fiz work on?
What is Swipe Discovery?
How is Fiz different from Strava?
Your training.
Amplified.
Be one of the first to train on Fiz. We'll send you the TestFlight link and the Play Store beta – no spam, ever.