AI coaching · adults 18+

Stronger.Faster.Further.You.

Five specialist AI coaches build a plan around your goals, your kit and your week. When something changes, tell them, and the plan changes with you.

Works in your browser and installs on your phone like an app.

OSFIT Home screen: the five coaches, Morning, Jamie, a Start today's session button and tiles for coach, plan, activity and progress
Lifting Running Conditioning
How it works

A quick chat, a plan that fits, then just train.

1 · Chat

Tell Sam about you

Sam, your AI Head Coach, asks a few questions like a text conversation: your goals, your kit, how many days you can train. Tap an answer or type your own.

Onboarding chat: Sam, Head Coach, asks what to call you
2 · Plan

Get a week-by-week plan

The right specialists build each session, with real weights and paces. Lighter weeks are planned in, and you can see why the plan looks the way it does.

Plan screen: Week 1 of 8, Monday lower power and strength, Tuesday rest, Wednesday upper strength today
3 · Train

Train, and talk when it changes

Open the app, tap Start today's session, tick off your sets. Sore, busy or bored? Tell your coach and it adjusts the plan.

Coach screen with the five coaches and quick replies such as Something hurts
Meet the coaches

One team of AI coaches, each with a speciality.

Ask a simple question and it goes straight to the right specialist. When your goals mix, Sam brings the team together.

Portrait of Sam
Sam Head Coach

Plans your whole week when your goals overlap, like lifting heavy while training for a 10K. Calm and organised, and keeps every session pulling the same way.

Portrait of Max
Max Strength & Muscle

Builds strength and muscle with steady progress on the big lifts. Loves a clean rep, and adds weight to the bar once you've earned it.

Portrait of Jade
Jade Speed & Power

Sprints, jumps and explosive lifts for sport and athleticism. Sharp and precise, and wants every rep done fast and with intent.

Portrait of Ellis
Ellis Endurance

Running from your first 5K to a marathon, with mostly easy miles and well-placed hard ones. Patient, and a little obsessed with pacing.

Portrait of Kai
Kai Hybrid & Conditioning

HYROX, circuits and engine work that mix strength with running. Upbeat, and thrives when the session gets hard.

Our AI coaching systems have been built specifically to give the best training advice in each field. Every coach works from its own specialist programming rules. Each week's progression is worked out in code, and every plan is checked for training load and recovery before it reaches you.

The app

Everything you need, nothing you don't.

A plan that bends, not breaks

Tight hamstrings, a sore shoulder, a week away with only a hotel gym. Say so in plain words. Your coach asks what it needs to know, then changes the sessions that are affected and leaves the rest alone.

  • Swaps exercises for ones that keep the same training effect
  • Moves a session to another day when your week changes
  • Points you to a professional when something needs one

Calm screens for training

Home shows what's on today, one tap from starting. The session is a short list. Press Start and you get a simple set table: the weight and reps are filled in, you tick each set, and a rest timer runs between them. The extras sit one tap away.

  • How-to cues and common mistakes for every exercise
  • Light and dark, following your phone
Workout screen in dark mode: bench press, 4 sets at 195 lb, first set ticked and a rest timer running

Progress you can see

Bodyweight, sessions done against planned, training load, personal bests and estimated maxes, all on one screen. Add progress photos if you want them. They stay private to you and are never shown to the coaches.

Progress screen: bodyweight 14 st 6 lb, progress photos, sessions done and training load

Your units, your kit

Bodyweight in stones and pounds, kilos or pounds. Loads in pounds or kilos, rounded to plates you can actually load. Runs in kilometres or miles. Plans only use the equipment you said you have.

13 st 2 lb245 lb110 kg6 km @ 5:10/km3 miles
WED · Endurance

Tempo run

2 km easy · 6 km @ 5:10/km · 1 km easy

Ellis saysHold the pace steady and you should finish feeling you had another kilometre in you.

Your AI coaches are ready when you are.

Create an account, have a five-minute chat with Sam, and your first week is waiting. New accounts are checked before they open. OSFIT is for adults 18 and over.